💾 Archived View for gemini.bortzmeyer.org › rfc-mirror › rfc3116.txt captured on 2023-11-04 at 14:13:43.
⬅️ Previous capture (2021-11-30)
-=-=-=-=-=-=-
Network Working Group J. Dunn
Request for Comments: 3116 C. Martin
Category: Informational ANC, Inc.
June 2001
Methodology for ATM Benchmarking
Status of this Memo
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2001). All Rights Reserved.
Abstract
This document discusses and defines a number of tests that may be
used to describe the performance characteristics of ATM (Asynchronous
Transfer Mode) based switching devices. In addition to defining the
tests this document also describes specific formats for reporting the
results of the tests.
This memo is a product of the Benchmarking Methodology Working Group
(BMWG) of the Internet Engineering Task Force (IETF).
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Background . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1. Test Device Requirements . . . . . . . . . . . . . . . . . . 5
2.2. Systems Under Test (SUTs). . . . . . . . . . . . . . . . . . 5
2.3. Test Result Evaluation . . . . . . . . . . . . . . . . . . . 5
2.4. Requirements . . . . . . . . . . . . . . . . . . . . . . . . 5
2.5. Test Configurations for SONET. . . . . . . . . . . . . . . . 6
2.6. SUT Configuration. . . . . . . . . . . . . . . . . . . . . . 7
2.7. Frame Formats. . . . . . . . . . . . . . . . . . . . . . . . 8
2.8. Frame Sizes. . . . . . . . . . . . . . . . . . . . . . . . . 8
2.9. Verifying Received IP PDU's. . . . . . . . . . . . . . . . . 9
2.10. Modifiers . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.10.1. Management IP PDU's . . . . . . . . . . . . . . . . . . . 9
2.10.2. Routing Update IP PDU's . . . . . . . . . . . . . . . . . 10
2.11. Filters . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.11.1. Filter Addresses. . . . . . . . . . . . . . . . . . . . . 11
2.12. Protocol Addresses. . . . . . . . . . . . . . . . . . . . . 12
Dunn & Martin Informational [Page 1]
RFC 3116 Methodology for ATM Benchmarking June 2001
2.13. Route Set Up. . . . . . . . . . . . . . . . . . . . . . . . 12
2.14. Bidirectional Traffic . . . . . . . . . . . . . . . . . . . 12
2.15. Single Stream Path. . . . . . . . . . . . . . . . . . . . . 12
2.16. Multi-port. . . . . . . . . . . . . . . . . . . . . . . . . 13
2.17. Multiple Protocols. . . . . . . . . . . . . . . . . . . . . 14
2.18. Multiple IP PDU Sizes . . . . . . . . . . . . . . . . . . . 14
2.19. Testing Beyond a Single SUT . . . . . . . . . . . . . . . . 14
2.20. Maximum IP PDU Rate . . . . . . . . . . . . . . . . . . . . 15
2.21. Busty Traffic . . . . . . . . . . . . . . . . . . . . . . . 15
2.22. Trial Description . . . . . . . . . . . . . . . . . . . . . 16
2.23. Trial Duration. . . . . . . . . . . . . . . . . . . . . . . 16
2.24. Address Resolution. . . . . . . . . . . . . . . . . . . . . 16
2.25. Synchronized Payload Bit Pattern. . . . . . . . . . . . . . 16
2.26. Burst Traffic Descriptors . . . . . . . . . . . . . . . . . 17
3. Performance Metrics. . . . . . . . . . . . . . . . . . . . . . 17
3.1. Physical Layer-SONET . . . . . . . . . . . . . . . . . . . . 17
3.1.1. Pointer Movements. . . . . . . . . . . . . . . . . . . . . 17
3.1.1.1. Pointer Movement Propagation . . . . . . . . . . . . . . 17
3.1.1.2. Cell Loss due to Pointer Movement. . . . . . . . . . . . 19
3.1.1.3. IP Packet Loss due to Pointer Movement . . . . . . . . . 20
3.1.2. Transport Overhead (TOH) Error Count . . . . . . . . . . . 21
3.1.2.1. TOH Error Propagation. . . . . . . . . . . . . . . . . . 21
3.1.2.2. Cell Loss due to TOH Error . . . . . . . . . . . . . . . 22
3.1.2.3. IP Packet Loss due to TOH Error. . . . . . . . . . . . . 23
3.1.3. Path Overhead (POH) Error Count. . . . . . . . . . . . . . 24
3.1.3.1. POH Error Propagation. . . . . . . . . . . . . . . . . . 24
3.1.3.2. Cell Loss due to POH Error . . . . . . . . . . . . . . . 25
3.1.3.3. IP Packet Loss due to POH Error. . . . . . . . . . . . . 26
3.2. ATM Layer. . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.2.1. Two-Point Cell Delay Variation (CDV) . . . . . . . . . . . 27
3.2.1.1. Test Setup . . . . . . . . . . . . . . . . . . . . . . . 27
3.2.1.2. Two-point CDV/Steady Load/One VCC. . . . . . . . . . . . 27
3.2.1.3. Two-point CDV/Steady Load/Twelve VCCs. . . . . . . . . . 28
3.2.1.4. Two-point CDV/Steady Load/Maximum VCCs . . . . . . . . . 30
3.2.1.5. Two-point CDV/Bursty VBR Load/One VCC. . . . . . . . . . 31
3.2.1.6. Two-point CDV/Bursty VBR Load/Twelve VCCs. . . . . . . . 32
3.2.1.7. Two-point CDV/Bursty VBR Load/Maximum VCCs . . . . . . . 34
3.2.1.8. Two-point CDV/Mixed Load/Three VCC's . . . . . . . . . . 35
3.2.1.9. Two-point CDV/Mixed Load/Twelve VCCs . . . . . . . . . . 36
3.2.1.10. Two-point CDV/Mixed Load/Maximum VCCs . . . . . . . . . 38
3.2.2. Cell Error Ratio (CER) . . . . . . . . . . . . . . . . . . 39
3.2.2.1. Test Setup . . . . . . . . . . . . . . . . . . . . . . . 39
3.2.2.2. CER/Steady Load/One VCC. . . . . . . . . . . . . . . . . 40
3.2.2.3. CER/Steady Load/Twelve VCCs. . . . . . . . . . . . . . . 41
3.2.2.4. CER/Steady Load/Maximum VCCs . . . . . . . . . . . . . . 42
3.2.2.5. CER/Bursty VBR Load/One VCC. . . . . . . . . . . . . . . 43
3.2.2.6. CER/Bursty VBR Load/Twelve VCCs. . . . . . . . . . . . . 44
3.2.2.7. CER/Bursty VBR Load/Maximum VCCs . . . . . . . . . . . . 46
Dunn & Martin Informational [Page 2]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.2.3. Cell Loss Ratio (CLR). . . . . . . . . . . . . . . . . . . 47
3.2.3.1. CLR/Steady Load/One VCC. . . . . . . . . . . . . . . . . 47
3.2.3.2. CLR/Steady Load/Twelve VCCs. . . . . . . . . . . . . . . 48
3.2.3.3. CLR/Steady Load/Maximum VCCs . . . . . . . . . . . . . . 49
3.2.3.4. CLR/Bursty VBR Load/One VCC. . . . . . . . . . . . . . . 51
3.2.3.5. CLR/Bursty VBR Load/Twelve VCCs. . . . . . . . . . . . . 52
3.2.3.6. CLR/Bursty VBR Load/Maximum VCCs . . . . . . . . . . . . 53
3.2.4. Cell Misinsertion Rate (CMR) . . . . . . . . . . . . . . . 54
3.2.4.1. CMR/Steady Load/One VCC. . . . . . . . . . . . . . . . . 54
3.2.4.2. CMR/Steady Load/Twelve VCCs. . . . . . . . . . . . . . . 55
3.2.4.3. CMR/Steady Load/Maximum VCCs . . . . . . . . . . . . . . 57
3.2.4.4. CMR/Bursty VBR Load/One VCC. . . . . . . . . . . . . . . 58
3.2.4.5. CMR/Bursty VBR Load/Twelve VCCs. . . . . . . . . . . . . 59
3.2.4.6. CMR/Bursty VBR Load/Maximum VCCs . . . . . . . . . . . . 60
3.2.5. CRC Error Ratio (CRC-ER) . . . . . . . . . . . . . . . . . 62
3.2.5.1. CRC-ER/Steady Load/One VCC . . . . . . . . . . . . . . . 62
3.2.5.2. CRC-ER/Steady Load/Twelve VCCs . . . . . . . . . . . . . 63
3.2.5.3. CRC-ER/Steady Load/Maximum VCCs. . . . . . . . . . . . . 64
3.2.5.4. CRC-ER/Bursty VBR Load/One VCC . . . . . . . . . . . . . 65
3.2.5.5. CRC-ER/Bursty VBR Load/Twelve VCCs . . . . . . . . . . . 66
3.2.5.6. CRC-ER/Bursty VBR Load/Maximum VCCs. . . . . . . . . . . 68
3.2.5.7. CRC-ER/Bursty UBR Load/One VCC . . . . . . . . . . . . . 69
3.2.5.8. CRC-ER/Bursty UBR Load/Twelve VCCs . . . . . . . . . . . 70
3.2.5.9. CRC-ER/Bursty UBR Load/Maximum VCCs. . . . . . . . . . . 71
3.2.5.10. CRC-ER/Bursty Mixed Load/Three VCC. . . . . . . . . . . 73
3.2.5.11. CRC-ER/Bursty Mixed Load/Twelve VCCs. . . . . . . . . . 74
3.2.5.12. CRC-ER/Bursty Mixed Load/Maximum VCCs . . . . . . . . . 75
3.2.6. Cell Transfer Delay (CTD). . . . . . . . . . . . . . . . . 76
3.2.6.1. Test Setup . . . . . . . . . . . . . . . . . . . . . . . 76
3.2.6.2. CTD/Steady Load/One VCC. . . . . . . . . . . . . . . . . 77
3.2.6.3. CTD/Steady Load/Twelve VCCs. . . . . . . . . . . . . . . 78
3.2.6.4. CTD/Steady Load/Maximum VCCs . . . . . . . . . . . . . . 79
3.2.6.5. CTD/Bursty VBR Load/One VCC. . . . . . . . . . . . . . . 81
3.2.6.6. CTD/Bursty VBR Load/Twelve VCCs. . . . . . . . . . . . . 82
3.2.6.7. CTD/Bursty VBR Load/Maximum VCCs . . . . . . . . . . . . 83
3.2.6.8. CTD/Bursty UBR Load/One VCC. . . . . . . . . . . . . . . 85
3.2.6.9. CTD/Bursty UBR Load/Twelve VCCs. . . . . . . . . . . . . 86
3.2.6.10. CTD/Bursty UBR Load/Maximum VCCs. . . . . . . . . . . . 87
3.2.6.11. CTD/Mixed Load/Three VCC's. . . . . . . . . . . . . . . 88
3.2.6.12. CTD/Mixed Load/Twelve VCCs. . . . . . . . . . . . . . . 90
3.2.6.13. CTD/Mixed Load/Maximum VCCs . . . . . . . . . . . . . . 91
3.3. ATM Adaptation Layer (AAL) Type 5 (AAL5) . . . . . . . . . . 93
3.3.1. IP Packet Loss due to AAL5 Re-assembly Errors. . . . . . . 93
3.3.2. AAL5 Re-assembly Time. . . . . . . . . . . . . . . . . . . 94
3.3.3. AAL5 CRC Error Ratio . . . . . . . . . . . . . . . . . . . 95
3.3.3.1. Test Setup . . . . . . . . . . . . . . . . . . . . . . . 95
3.3.3.2. AAL5-CRC-ER/Steady Load/One VCC. . . . . . . . . . . . . 95
3.3.3.3. AAL5-CRC-ER/Steady Load/Twelve VCCs. . . . . . . . . . . 96
Dunn & Martin Informational [Page 3]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.3.3.4. AAL5-CRC-ER/Steady Load/Maximum VCCs . . . . . . . . . . 97
3.3.3.5. AAL5-CRC-ER/Bursty VBR Load/One VCC. . . . . . . . . . . 99
3.3.3.6. AAL5-CRC-ER/Bursty VBR Load/Twelve VCCs. . . . . . . . .100
3.3.3.7. AAL5-CRC-ER/Bursty VBR Load/Maximum VCCs . . . . . . . .101
3.3.3.8. AAL5-CRC-ER/Mixed Load/Three VCC's . . . . . . . . . . .102
3.3.3.9. AAL5-CRC-ER/Mixed Load/Twelve VCCs . . . . . . . . . . .104
3.3.3.10. AAL5-CRC-ER/Mixed Load/Maximum VCCs . . . . . . . . . .105
3.4. ATM Service: Signaling . . . . . . . . . . . . . . . . . . .106
3.4.1. CAC Denial Time and Connection Establishment Time. . . . .106
3.4.2. Connection Teardown Time . . . . . . . . . . . . . . . . .107
3.4.3. Crankback Time . . . . . . . . . . . . . . . . . . . . . .108
3.4.4. Route Update Response Time . . . . . . . . . . . . . . . .109
3.5. ATM Service: ILMI. . . . . . . . . . . . . . . . . . . . . .110
3.5.1. MIB Alignment Time . . . . . . . . . . . . . . . . . . . .110
3.5.2. Address Registration Time. . . . . . . . . . . . . . . . .111
4. Security Considerations . . . . . . . . . . . . . . . . . . .112
5. Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . .112
6. References . . . . . . . . . . . . . . . . . . . . . . . . . .113
7. Authors' Addresses . . . . . . . . . . . . . . . . . . . . . .113
APPENDIX A . . . . . . . . . . . . . . . . . . . . . . . . . . .114
APPENDIX B . . . . . . . . . . . . . . . . . . . . . . . . . . .114
APPENDIX C . . . . . . . . . . . . . . . . . . . . . . . . . . .116
Full Copyright Statement . . . . . . . . . . . . . . . . . . . .127
1. Introduction
This document defines a specific set of tests that vendors can use to
measure and report the performance characteristics of ATM network
devices. The results of these tests will provide the user comparable
data from different vendors with which to evaluate these devices.
The methods defined in this memo are based on RFC 2544 "Benchmarking
Methodology for Network Interconnect Devices".
The document "Terminology for ATM Benchmarking" (RFC 2761), defines
many of the terms that are used in this document. The terminology
document should be consulted before attempting to make use of this
document.
The BMWG produces two major classes of documents: Benchmarking
Terminology documents and Benchmarking Methodology documents. The
Terminology documents present the benchmarks and other related terms.
The Methodology documents define the procedures required to collect
the benchmarks cited in the corresponding Terminology documents.
Dunn & Martin Informational [Page 4]
RFC 3116 Methodology for ATM Benchmarking June 2001
2. Background
2.1. Test Device Requirements
This document is based on the requirement that a test device is
available. The test device can either be off the shelf or can be
easily built with current technologies. The test device must have a
transmitting and receiving port for the interface type under test.
The test device must be configured to transmit test PDUs and to
analyze received PDUs. The test device should be able to transmit
and analyze received data at the same time.
2.2. Systems Under Test (SUTs)
There are a number of tests described in this document that do not
apply to each SUT. Vendors should perform all of the tests that can
be supported by a specific product type. It will take some time to
perform all of the recommended tests under all of the recommended
conditions.
2.3. Test Result Evaluation
Performing all of the tests in this document will result in a great
deal of data. The applicability of this data to the evaluation of a
particular SUT will depend on its expected use and the configuration
of the network in which it will be used. For example, the time
required by a switch to provide ILMI services will not be a pertinent
measurement in a network that does not use the ILMI protocol, such as
an ATM WAN. Evaluating data relevant to a particular network
installation may require considerable experience, which may not be
readily available. Finally, test selection and evaluation of test
results must be done with an understanding of generally accepted
testing practices regarding repeatability, variance and the
statistical significance of a small numbers of trials.
2.4. Requirements
In this document, the words that are used to define the significance
of each particular requirement are capitalized. These words are:
* "MUST" This word, or the words "REQUIRED" and "SHALL" mean that
the item is an absolute requirement of the specification.
* "SHOULD" This word or the adjective "RECOMMENDED" means that there
may exist valid reasons in particular circumstances to ignore this
item, but the full implications should be understood and the case
carefully weighed before choosing a different course.
Dunn & Martin Informational [Page 5]
RFC 3116 Methodology for ATM Benchmarking June 2001
* "MAY" This word or the adjective "OPTIONAL" means that this item
is truly optional. One vendor may choose to include the item
because a particular marketplace requires it or because it
enhances the product, for example; another vendor may omit the
same item.
An implementation is not compliant if it fails to satisfy one or more
of the MUST requirements for the protocols it implements. An
implementation that satisfies all the MUST and all the SHOULD
requirements for its protocols is said to be "unconditionally
compliant"; one that satisfies all the MUST requirements but not all
the SHOULD requirements for its protocols is said to be
"conditionally compliant".
2.5. Test Configurations for SONET
The test device can be connected to the SUT in a variety of
configurations depending on the test point. The following
configurations will be used for the tests described in this document.
1) Uni-directional connection: The test devices transmit port
(labeled Tx) is connected to the SUT receive port (labeled Rx).
The SUTs transmit port is connected to the test device receive
port (see Figure 1). In this configuration, the test device can
verify that all transmitted packets are acknowledged correctly.
Note that this configuration does not verify internal system
functions, but verifies one port on the SUT.
+-------------+ +-------------+
| Tx|-------------->|Rx |
| Test Rx|<--------------|Tx SUT |
| Device | | |
+-------------+ +-------------+
Figure 1
2) Bi-directional connection: The test devices first transmit port is
connected to the SUTs first receive port. The SUTs first transmit
port is connected to the test devices first receive port. The
test devices second transmit port is connected to the SUTs second
receive port. The SUTs second transmit port is connected to the
test devices second receive port (see Figure 2). In this
configuration, the test device can determine if all of the
transmitted packets were received and forwarded correctly. Note
that this configuration does verify internal system functions,
since it verifies two ports on the SUT.
Dunn & Martin Informational [Page 6]
RFC 3116 Methodology for ATM Benchmarking June 2001
+-------------+ +-------------+
| Test Tx|-------------->|Rx |
| Device Rx|<--------------|Tx SUT |
| Tx Rx | | Tx Rx |
+-------------+ +-------------+
| ^ | ^
| | | |
| +------------------------+ |
| |
|---------------------------------|
Figure 2
3) Uni-directional passthrough connection: The test devices first
transmit port is connected to the SUT1 receive port. The SUT1
transmit port is connected to the test devices first receive port.
The test devices second transmit port is connected to the SUT2
receive port. The SUT2 transmit port is connected to the test
devices second receive port (see Figure 3). In this
configuration, the test device can determine if all of the packets
transmitted by SUT1 were correctly acknowledged by SUT2. Note
that this configuration does not verify internal system functions,
but verifies one port on each SUT.
+-------------+ +-------------+ +-------------+
| Tx|---------->|Rx Tx|---------->|Rx |
| SUT1 Rx|<----------|Tx Test Rx|<----------|Tx SUT2 |
| | | Device | | |
+-------------+ +-------------+ +-------------+
Figure 3
2.6. SUT Configuration
The SUT MUST be configured as described in the SUT users guide.
Specifically, it is expected that all of the supported protocols will
be configured and enabled. It is expected that all of the tests will
be run without changing the configuration or setup of the SUT in any
way other than that required to do the specific test. For example,
it is not acceptable to disable all but one transport protocol when
testing the throughput of that protocol. If PNNI or BISUP is used to
initiate switched virtual connections (SVCs), the SUT configuration
SHOULD include the normally recommended routing update intervals and
keep alive frequency. The specific version of the software and the
exact SUT configuration, including what functions are disabled and
used during the tests MUST be included as part of the report of the
results.
Dunn & Martin Informational [Page 7]
RFC 3116 Methodology for ATM Benchmarking June 2001
2.7. Frame formats
The formats of the test IP PDUs to use for TCP/IP and UPC/IP over ATM
are shown in Appendix C: Test Frame Formats. Note that these IP PDUs
are in accordance with RFC 2225. These exact IP PDU formats SHOULD
be used in the tests described in this document for this
protocol/media combination. These IP PDUs will be used as a template
for testing other protocol/media combinations. The specific formats
that are used to define the test IP PDUs for a particular test series
MUST be included in the report of the results.
2.8. Frame sizes
All of the described tests SHOULD be performed using a number of IP
PDU sizes. Specifically, the sizes SHOULD include the maximum and
minimum legitimate sizes for the protocol under test on the media
under test and enough sizes in between to be able to get a full
characterization of the SUT performance. Except where noted, at
least five IP PDU sizes SHOULD be tested for each test condition.
Theoretically the minimum size UDP Echo request IP PDU would consist
of an IP header (minimum length 20 octets), a UDP header (8 octets),
AAL5 trailer (8 octets) and an LLC/SNAP code point header (8 octets);
therefore, the minimum size PDU will fit into one ATM cell. The
theoretical maximum IP PDU size is determined by the size of the
length field in the IP header. In almost all cases the actual
maximum and minimum sizes are determined by the limitations of the
media. In the case of ATM, the maximum IP PDU size SHOULD be the ATM
MTU size, which is 9180 octets.
In theory it would be ideal to distribute the IP PDU sizes in a way
that would evenly distribute the theoretical IP PDU rates. These
recommendations incorporate this theory but specify IP PDU sizes,
which are easy to understand and remember. In addition, many of the
same IP PDU sizes are specified on each of the media types to allow
for easy performance comparisons.
Note: The inclusion of an unrealistically small IP PDU size on some
of the media types (i.e., with little or no space for data) is to
help characterize the per-IP PDU processing overhead of the SUT.
The IP PDU sizes that will be used are:
44, 64, 128, 256, 1024, 1518, 2048, 4472, 9180
The minimum size IP PDU for UDP on ATM is 44 octets, the minimum size
of 44 is recommended to allow direct comparison to token ring
performance. The IP PDU size of 4472 is recommended instead of the
Dunn & Martin Informational [Page 8]
RFC 3116 Methodology for ATM Benchmarking June 2001
theoretical FDDI maximum size of 4500 octets in order to permit the
same type of comparison. An IP (i.e., not UDP) IP PDU may be used in
addition if a higher data rate is desired, in which case the minimum
IP PDU size is 28 octets.
2.9. Verifying received IP PDUs
The test equipment SHOULD discard any IP PDUs received during a test
run that are not actual forwarded test IP PDUs. For example, keep-
alive and routing update IP PDUs SHOULD NOT be included in the count
of received IP PDUs. In any case, the test equipment SHOULD verify
the length of the received IP PDUs and check that they match the
expected length.
Preferably, the test equipment SHOULD include sequence numbers in the
transmitted IP PDUs and check for these numbers on the received IP
PDUs. If this is done, the reported results SHOULD include, in
addition to the number of IP PDUs dropped, the number of IP PDUs that
were received out of order, the number of duplicate IP PDUs received
and the number of gaps in the received IP PDU numbering sequence.
This functionality is required for some of the described tests.
2.10. Modifiers
It is useful to characterize the SUTs performance under a number of
conditions. Some of these conditions are noted below. The reported
results SHOULD include as many of these conditions as the test
equipment is able to generate. The suite of tests SHOULD be run
first without any modifying conditions, then repeated under each of
the modifying conditions separately. To preserve the ability to
compare the results of these tests, any IP PDUs that are required to
generate the modifying conditions (excluding management queries) will
be included in the same data stream as that of the normal test IP
PDUs and in place of one of the test IP PDUs. They MUST not be
supplied to the SUT on a separate network port.
2.10.1. Management IP PDUs
Most ATM data networks now make use of ILMI, signaling and OAM. In
many environments, there can be a number of management stations
sending queries to the same SUT at the same time.
Management queries MUST be made in accordance with the applicable
specification, e.g., ILMI sysUpTime getNext requests will be made in
accordance with ILMI 4.0. The response to the query MUST be verified
by the test equipment. Note that, for each management protocol in
Dunn & Martin Informational [Page 9]
RFC 3116 Methodology for ATM Benchmarking June 2001
use, this requires that the test equipment implement the associated
protocol state machine. One example of the specific query IP PDU
(ICMP) that should be used is shown in Appendix C.
2.10.2. Routing update IP PDUs
The processing of PNNI updates could have a significant impact on the
ability of a switch to forward cells and complete calls. If PNNI is
configured on the SUT, one routing update MUST be transmitted before
the first test IP PDU is transmitted during the trial. The test
SHOULD verify that the SUT has properly processed the routing update.
PNNI routing update IP PDUs SHOULD be sent at the rate specified in
Appendix B. Appendix C defines one routing update PDU for the TCP/IP
over ATM example. The routing updates are designed to change the
routing on a number of networks that are not involved in the
forwarding of the test data. The first IP PDU sets the routing table
state to "A", the second one changes the state to "B". The IP PDUs
MUST be alternated during the trial. The test SHOULD verify that the
SUT has properly processed the routing update.
2.11. Filters
Filters are added to switches to selectively inhibit the forwarding
of cells that would normally be forwarded. This is usually done to
implement security controls on the data that is accepted between one
area and another. Different products have different capabilities to
implement filters. Filters are applicable only if the SUT supports
the filtering feature.
The SUT SHOULD be first configured to add one filter condition and
the tests performed. This filter SHOULD permit the forwarding of the
test data stream. This filter SHOULD be of the form as described in
the SUT Users Guide.
The SUT SHOULD be then reconfigured to implement a total of 25
filters. The first 24 of these filters SHOULD be based on 24
separate ATM NSAP Network Prefix addresses.
The 24 ATM NSAP Network Prefix addresses SHOULD not be any that are
represented in the test data stream. The last filter SHOULD permit
the forwarding of the test data stream. By "first" and "last" we
mean to ensure that in the second case, 25 conditions must be checked
before the data IP over ATM PDUs will match the conditions that
permit the forwarding of the IP PDU. Of course, if the SUT reorders
the filters or does not use a linear scan of the filter rules the
effect of the sequence in which the filters are input is properly
lost.
Dunn & Martin Informational [Page 10]
RFC 3116 Methodology for ATM Benchmarking June 2001
The exact filters configuration command lines used SHOULD be included
with the report of the results.
2.11.1. Filter Addresses
Two sets of filter addresses are required, one for the single filter
case and one for the 25 filter case.
The single filter case should permit traffic from ATM address [Switch
Network Prefix] 00 00 00 00 00 01 00 to ATM address [Switch Network
Prefix] 00 00 00 00 00 02 00 and deny all other traffic. Note that
the 13 octet Switch Network Prefix MUST be configured before this
test can be run.
The 25 filter case should follow the following sequence.
deny [Switch Network Prefix] 00 00 00 00 00 01 00
to [Switch Network Prefix] 00 00 00 00 00 03 00
deny [Switch Network Prefix] 00 00 00 00 00 01 00
to [Switch Network Prefix] 00 00 00 00 00 04 00
deny [Switch Network Prefix] 00 00 00 00 00 01 00
to [Switch Network Prefix] 00 00 00 00 00 05 00
...
deny [Switch Network Prefix] 00 00 00 00 00 01 00
to [Switch Network Prefix] 00 00 00 00 00 0C 00
deny [Switch Network Prefix] 00 00 00 00 00 01 00
to [Switch Network Prefix] 00 00 00 00 00 0D 00
allow [Switch Network Prefix] 00 00 00 00 00 01 00
to [Switch Network Prefix] 00 00 00 00 00 02 00
deny [Switch Network Prefix] 00 00 00 00 00 01 00
to [Switch Network Prefix] 00 00 00 00 00 0E 00
deny [Switch Network Prefix] 00 00 00 00 00 01 00
to [Switch Network Prefix] 00 00 00 00 00 0F 00
...
deny [Switch Network Prefix] 00 00 00 00 00 01 00
to [Switch Network Prefix] 00 00 00 00 00 18 00
deny all else
All previous filter conditions should be cleared from the switch
before this sequence is entered. The sequence is selected to test to
see if the switch sorts the filter conditions or accepts them in the
order that they were entered. Both of these procedures will result
in a greater impact on performance than will some form of hash
coding.
Dunn & Martin Informational [Page 11]
RFC 3116 Methodology for ATM Benchmarking June 2001
2.12. Protocol addresses
It is easier to implement these tests using a single logical stream
of data, with one source ATM address and one destination ATM address,
and for some conditions like the filters described above, a practical
requirement. Networks in the real world are not limited to single
streams of data. The test suite SHOULD be first run with a single
ATM source and destination address pair. The tests SHOULD then be
repeated with using a random destination address. In the case of
testing single switches, the addresses SHOULD be random and uniformly
distributed over a range of 256 seven octet user parts. In the case
of testing multiple interconnected switches, the addresses SHOULD be
random and uniformly distributed over the 256 network prefixes, each
of which should support 256 seven octet user parts. The specific
address ranges to use for ATM are shown in Appendix A. IP to ATM
address mapping MUST be accomplished as described in RFC 2225.
2.13. Route Set Up
It is not reasonable that all of the routing information necessary to
forward the test stream, especially in the multiple address case,
will be manually set up. If PNNI and/or ILMI are running, at the
start of each trial a routing update MUST be sent to the SUT. This
routing update MUST include all of the ATM addresses that will be
required for the trial. This routing update will have to be repeated
at the interval required by PNNI or ILMI. An example of the format
and repetition interval of the update IP PDUs is given in Appendix B
(interval and size) and Appendix C (format).
2.14. Bidirectional traffic
Bidirectional performance tests SHOULD be run with the same data rate
being offered from each direction. The sum of the data rates should
not exceed the theoretical limit for the media.
2.15. Single stream path
The full suite of tests SHOULD be run with the appropriate modifiers
for a single receive and transmit port on the SUT. If the internal
design of the SUT has multiple distinct pathways, for example,
multiple interface cards each with multiple network ports, then all
possible permutations of pathways SHOULD be tested separately. If
multiple interconnected switches are tested, the test MUST specify
routes, which allow only one path between source and destination ATM
addresses.
Dunn & Martin Informational [Page 12]
RFC 3116 Methodology for ATM Benchmarking June 2001
2.16. Multi-port
Many switch products provide several network ports on the same
interface module. Each port on an interface module SHOULD be
stimulated in an identical manner. Specifically, half of the ports
on each module SHOULD be receive ports and half SHOULD be transmit
ports. For example if a SUT has two interface module each of which
has four ports, two ports on each interface module be receive ports
and two will be transmit ports. Each receive port MUST be offered
the same data rate. The addresses in the input data streams SHOULD
be set so that an IP PDU will be directed to each of the transmit
ports in sequence. That is, all transmit ports will receive an
identical distribution of IP PDUs from a particular receive port.
Consider the following 6 port SUT:
--------------
---------| Rx A Tx X|--------
---------| Rx B Tx Y|--------
---------| Rx C Tx Z|--------
--------------
The addressing of the data streams for each of the inputs SHOULD be:
stream sent to Rx A:
IP PDU to Tx X, IP PDU to Tx Y, IP PDU to Tx Z
stream sent to Rx B:
IP PDU to Tx X, IP PDU to Tx Y, IP PDU to Tx Z
stream sent to Rx C
IP PDU to Tx X, IP PDU to Tx Y, IP PDU to Tx Z
Note: Each stream contains the same sequence of IP destination
addresses; therefore, each transmit port will receive 3 IP PDUs
simultaneously. This procedure ensures that the SUT will have to
process multiple IP PDUs addressed to the same transmit port
simultaneously.
The same configuration MAY be used to perform a bi-directional
multi-stream test. In this case all of the ports are considered both
receive and transmit ports. Each data stream MUST consist of IP PDUs
whose addresses correspond to the ATM addresses all of the other
ports.
Dunn & Martin Informational [Page 13]
RFC 3116 Methodology for ATM Benchmarking June 2001
2.17. Multiple protocols
This document does not address the issue of testing the effects of a
mixed protocol environment other than to suggest that if such tests
are wanted then PDUs SHOULD be distributed between all of the test
protocols. The distribution MAY approximate the conditions on the
network in which the SUT would be used.
2.18. Multiple IP PDU sizes
This document does not address the issue of testing the effects of a
mixed IP PDU size environment other than to suggest that, if such
tests are required, then IP PDU size SHOULD be evenly distributed
among all of the PDU sizes listed in this document. The distribution
MAY approximate the conditions on the network in which the SUT would
be used.
2.19. Testing beyond a single SUT
In the performance testing of a single SUT, the paradigm can be
described as applying some input to a SUT and monitoring the output.
The results of which can be used to form a basis of characterization
of that device under those test conditions.
This model is useful when the test input and output are homogeneous
(e.g., 64-byte IP, AAL5 PDUs into the SUT; 64 byte IP, AAL5 PDUs
out).
By extending the single SUT test model, reasonable benchmarks
regarding multiple SUTs or heterogeneous environments may be
collected. In this extension, the single SUT is replaced by a system
of interconnected network SUTs. This test methodology would support
the benchmarking of a variety of device/media/service/protocol
combinations. For example, a configuration for a LAN-to-WAN-to-LAN
test might be:
(1) ATM UNI -> SUT 1 -> BISUP -> SUT 2 -> ATM UNI
Or an extended LAN configuration might be:
(2) ATM UNI -> SUT 1 -> PNNI Network -> SUT 2 -> ATM UNI
In both examples 1 and 2, end-to-end benchmarks of each system could
be empirically ascertained. Other behavior may be characterized
through the use of intermediate devices. In example 2, the
configuration may be used to give an indication of the effect of PNNI
routing on IP throughput.
Dunn & Martin Informational [Page 14]
RFC 3116 Methodology for ATM Benchmarking June 2001
Because multiple SUTs are treated as a single system, there are
limitations to this methodology. For instance, this methodology may
yield an aggregate benchmark for a tested system. That benchmark
alone, however, may not necessarily reflect asymmetries in behavior
between the SUTs, latencies introduced by other apparatus (e.g.,
CSUs/DSUs, switches), etc.
Further, care must be used when comparing benchmarks of different
systems by ensuring that the SUTs' features and configuration of the
tested systems have the appropriate common denominators to allow
comparison.
2.20. Maximum IP PDU rate
The maximum IP PDU rates that should be used when testing LAN
connections SHOULD be the listed theoretical maximum rate for the IP
PDU size on the media.
The maximum IP PDU rate that should be used when testing WAN
connections SHOULD be greater than the listed theoretical maximum
rate for the IP PDU size on that speed connection. The higher rate
for WAN tests is to compensate for the fact that some vendors employ
various forms of header compression.
A list of maximum IP PDU rates for LAN connections is included in
Appendix B.
2.21. Bursty traffic
It is convenient to measure the SUT performance under steady state
load; however, this is an unrealistic way to gauge the functioning of
a SUT. Actual network traffic normally consists of bursts of IP
PDUs.
Some of the tests described below SHOULD be performed with both
constant bit rate, bursty Unspecified Bit Rate (UBR) Best Effort
[AF-TM4.1] and Variable Bit Rate Non-real Time (VBR-nrt) Best Effort
[AF-TM4.1]. The IP PDUs within a burst are transmitted with the
minimum legitimate inter-IP PDU gap.
The objective of the test is to determine the minimum interval
between bursts that the SUT can process with no IP PDU loss. Tests
SHOULD be run with burst sizes of 10% of Maximum Burst Size (MBS),
20% of MBS, 50% of MBS and 100% MBS. Note that the number of IP PDUs
in each burst will depend on the PDU size. For UBR, the MBS refers
to the associated VBR traffic parameters.
Dunn & Martin Informational [Page 15]
RFC 3116 Methodology for ATM Benchmarking June 2001
2.22. Trial description
A particular test consists of multiple trials. Each trial returns
one piece of information, for example the loss rate at a particular
input IP PDU rate. Each trial consists of five of phases:
a) If the SUT is a switch supporting PNNI, send the routing update to
the SUT receive port and wait two seconds to be sure that the
routing has settled.
b) Send an ATM ARP PDU to determine the ATM address corresponding to
the destination IP address. The formats of the ATM ARP PDU that
should be used are shown in the Test Frame Formats document and
MUST be in accordance with RFC 2225.
c) Stimulate SUT with traffic load.
d) Wait for two seconds for any residual IP PDUs to be received.
e) Wait for at least five seconds for the SUT to restabilize.
2.23. Trial duration
The objective of the tests defined in this document is to accurately
characterize the behavior of a particular piece of network equipment
under varying traffic loads. The choice of test duration must be a
compromise between this objective and keeping the duration of the
benchmarking test suite within reasonable bounds. The SUT SHOULD be
stimulated for at least 60 seconds. If this time period results in a
high variance in the test results, the SUT SHOULD be stimulated for
at least 300 seconds.
2.24. Address resolution
The SUT MUST be able to respond to address resolution requests sent
by another SUT, an ATM ARP server or the test equipment in accordance
with RFC 2225.
2.25. Synchronized Payload Bit Pattern.
Some measurements assume that both the transmitter and receiver
payload information is synchronized. Synchronization MUST be
achieved by supplying a known bit pattern to both the transmitter and
receiver. This bit pattern MUST be one of the following: PRBS-15,
PRBS-23, 0xFF00, or 0xAA55.
Dunn & Martin Informational [Page 16]
RFC 3116 Methodology for ATM Benchmarking June 2001
2.26. Burst Traffic Descriptors.
Some measurements require busty traffic patterns. These patterns
MUST conform to one of the following traffic descriptors:
1) PCR=100% allotted line rate, SCR=50% allotted line rate, and MBS=8192
2) PCR=100% allotted line rate, SCR=50% allotted line rate, and MBS=4096
3) PCR=90% allotted line rate, SCR=50% allotted line rate, and MBS=8192
4) PCR=90% allotted line rate, SCR=50% allotted line rate, and MBS=4096
5) PCR=90% allotted line rate, SCR=45% allotted line rate, and MBS=8192
6) PCR=90% allotted line rate, SCR=45% allotted line rate, and MBS=4096
7) PCR=80% allotted line rate, SCR=40% allotted line rate, and MBS=65536
8) PCR=80% allotted line rate, SCR=40% allotted line rate, and MBS=32768
The allotted line rate refers to the total available line rate
divided by the number of VCCs in use.
3. Performance Metrics
3.1. Physical Layer-SONET
3.1.1. Pointer Movements
3.1.1.1. Pointer Movement Propagation.
Objective: To determine that the SUT does not propagate pointer
movements as defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the uni-directional
configuration.
2) Send a specific number of IP PDUs at a specific rate through the
SUT. Since this test is not a throughput test, the rate should
not be greater than 90% of line rate. The cell payload SHOULD
contain valid IP PDUs. The IP PDUs MUST be encapsulated in AAL5.
Dunn & Martin Informational [Page 17]
RFC 3116 Methodology for ATM Benchmarking June 2001
3) Count the IP PDUs that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test, else lower the test device
traffic rate until the counts are the same.
4) Inject one forward payload pointer movement. Verify that the SUT
does not change the pointer.
5) Inject one forward payload pointer movement every 1 second.
Verify that the SUT does not change the pointer.
6) Discontinue the payload pointer movement.
7) Inject five forward payload pointer movements every 1 second.
Verify that the SUT does not change the pointer.
8) Discontinue the payload pointer movement.
9) Inject one backward payload pointer movement. Verify that the
SUT does not change the pointer.
10) Inject one backward payload pointer movement every 1 second.
Verify that the SUT does not change the pointer.
11) Discontinue the payload pointer movement.
12) Inject five backward payload pointer movements every 1 second.
Verify that the SUT does not change the pointer.
13) Discontinue the payload pointer movement.
Reporting Format:
The results of the pointer movement propagation test SHOULD be
reported in a form of a table. The rows SHOULD be labeled single
pointer movement, one pointer movement per second, and five
pointer movements per second. The columns SHOULD be labeled
pointer movement and loss of pointer. The elements of the table
SHOULD be either True or False, indicating whether the particular
condition was observed for each test.
The table MUST also indicate the IP PDU size in octets and traffic
rate in IP PDUs per second as generated by the test device.
Dunn & Martin Informational [Page 18]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.1.1.2. Cell Loss due to Pointer Movement.
Objective: To determine if the SUT will drop cells due to pointer
movements as defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the uni-directional
configuration.
2) Send a specific number of cells at a specific rate through the
SUT. Since this test is not a throughput test, the rate should
not be greater than 90% of line rate. The cell payload SHOULD
contain valid IP PDUs. The IP PDUs MUST be encapsulated in AAL5.
3) Count the cells that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
4) Inject one forward payload pointer movement. Verify that the SUT
does not drop any cells.
5) Inject one forward payload pointer movement every 1 second.
Verify that the SUT does not drop any cells.
6) Discontinue the payload pointer movement.
7) Inject five forward payload pointer movements every 1 second.
Verify that the SUT does not drop any cells.
8) Discontinue the payload pointer movement.
9) Inject one backward payload pointer movement. Verify that the
SUT does not drop any cells.
10) Inject one backward payload pointer movement every 1 second.
Verify that the SUT does not drop any cells.
11) Discontinue the payload pointer movement.
12) Inject five backward payload pointer movements every 1 second.
Verify that the SUT does not drop any cells.
13) Discontinue the payload pointer movement.
Dunn & Martin Informational [Page 19]
RFC 3116 Methodology for ATM Benchmarking June 2001
Reporting Format:
The results of the cell loss due to pointer movement test SHOULD
be reported in a form of a table. The rows SHOULD be labeled
single pointer movement, one pointer movement per second, and five
pointer movements per second. The columns SHOULD be labeled cell
loss and number of cells lost. The elements of column 1 SHOULD be
either True or False, indicating whether the particular condition
was observed for each test. The elements of column 2 SHOULD be
non-negative integers.
The table MUST also indicate the traffic rate in IP PDUs per
second as generated by the test device.
3.1.1.3. IP Packet Loss due to Pointer Movement.
Objective: To determine if the SUT will drop IP packets due to
pointer movements as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Procedure:
1) Set up the SUT and test device using the uni-directional
configuration.
2) Send a specific number of IP packets at a specific rate through
the SUT. Since this test is not a throughput test, the rate
should not be greater than 90% of line rate. The IP PDUs MUST be
encapsulated in AAL5.
3) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
4) Inject one forward payload pointer movement. Verify that the SUT
does not drop any packets.
5) Inject one forward payload pointer movement every 1 second.
Verify that the SUT does not drop any packets.
6) Discontinue the payload pointer movement.
7) Inject five forward payload pointer movements every 1 second.
Verify that the SUT does not drop any packets.
8) Discontinue the payload pointer movement.
Dunn & Martin Informational [Page 20]
RFC 3116 Methodology for ATM Benchmarking June 2001
9) Inject one backward payload pointer movement. Verify that the
SUT does not drop any packets.
10) Inject one backward payload pointer movement every 1 second.
Verify that the SUT does not drop any packets.
11) Discontinue the payload pointer movement.
12) Inject five backward payload pointer movements every 1 second.
Verify that the SUT does not drop any packets.
13) Discontinue the payload pointer movement.
Reporting Format:
The results of the IP packet loss due to pointer movement test
SHOULD be reported in a form of a table. The rows SHOULD be
labeled single pointer movement, one pointer movement per second,
and five pointer movements per second. The columns SHOULD be
labeled packet loss and number of packets lost. The elements of
column 1 SHOULD be either True or False, indicating whether the
particular condition was observed for each test. The elements of
column 2 SHOULD be non-negative integers.
The table MUST also indicate the packet size in octets and traffic
rate in packets per second as generated by the test device.
3.1.2. Transport Overhead (TOH) Error Count
3.1.2.1. TOH Error Propagation.
Objective: To determine that the SUT does not propagate TOH errors as
defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the uni-directional
configuration.
2) Send a specific number of IP PDUs at a specific rate through the
SUT. Since this test is not a throughput test, the rate should
not be greater than 90% of line rate. The cell payload SHOULD
contain valid IP PDUs. The IP PDUs MUST be encapsulated in AAL5.
3) Count the IP PDUs that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test, else lower the test device
traffic rate until the counts are the same.
Dunn & Martin Informational [Page 21]
RFC 3116 Methodology for ATM Benchmarking June 2001
4) Inject one error in the first bit of the A1 and A2 Frameword.
Verify that the SUT does not propagate the error.
5) Inject one error in the first bit of the A1 and A2 Frameword
every 1 second. Verify that the SUT does not propagate the
error.
6) Discontinue the Frameword error.
7) Inject one error in the first bit of the A1 and A2 Frameword for
4 consecutive IP PDUs in every 6 IP PDUs. Verify that the SUT
indicates Loss of Frame.
8) Discontinue the Frameword error.
Reporting Format:
The results of the TOH error propagation test SHOULD be reported
in a form of a table. The rows SHOULD be labeled single error,
one error per second, and four consecutive errors every 6 IP PDUs.
The columns SHOULD be labeled error propagated and loss of IP PDU.
The elements of the table SHOULD be either True or False,
indicating whether the particular condition was observed for each
test.
The table MUST also indicate the IP PDU size in octets and traffic
rate in IP PDUs per second as generated by the test device.
3.1.2.2. c TOH Error.
Objective: To determine if the SUT will drop cells due TOH Errors as
defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the uni-directional
configuration.
2) Send a specific number of cells at a specific rate through the
SUT. Since this test is not a throughput test, the rate should
not be greater than 90% of line rate. The cell payload SHOULD
contain valid IP PDUs. The IP PDUs MUST be encapsulated in AAL5.
3) Count the cells that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
Dunn & Martin Informational [Page 22]
RFC 3116 Methodology for ATM Benchmarking June 2001
4) Inject one error in the first bit of the A1 and A2 Frameword.
Verify that the SUT does not drop any cells.
5) Inject one error in the first bit of the A1 and A2 Frameword
every 1 second. Verify that the SUT does not drop any cells.
6) Discontinue the Frameword error.
7) Inject one error in the first bit of the A1 and A2 Frameword for
4 consecutive IP PDUs in every 6 IP PDUs. Verify that the SUT
does drop cells.
8) Discontinue the Frameword error.
Reporting Format:
The results of the Cell Loss due to TOH errors test SHOULD be
reported in a form of a table. The rows SHOULD be labeled single
error, one error per second, and four consecutive errors every 6
IP PDUs. The columns SHOULD be labeled cell loss and number of
cells lost. The elements of column 1 SHOULD be either True or
False, indicating whether the particular condition was observed
for each test. The elements of column 2 SHOULD be non-negative
integers.
The table MUST also indicate the traffic rate in IP PDUs per
second as generated by the test device.
3.1.2.3. IP Packet Loss due to TOH Error.
Objective: To determine if the SUT will drop IP packets due to TOH
errors as defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the uni-directional
configuration.
2) Send a specific number of IP packets at a specific rate through
the SUT. Since this test is not a throughput test, the rate
should not be greater than 90% of line rate. The IP PDUs MUST be
encapsulated in AAL5.
3) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
Dunn & Martin Informational [Page 23]
RFC 3116 Methodology for ATM Benchmarking June 2001
4) Inject one error in the first bit of the A1 and A2 Frameword.
Verify that the SUT does not drop any packets.
5) Inject one error in the first bit of the A1 and A2 Frameword
every 1 second. Verify that the SUT does not drop any packets.
6) Discontinue the Frameword error.
7) Inject one error in the first bit of the A1 and A2 Frameword for
4 consecutive IP PDUs in every 6 IP PDUs. Verify that the SUT
does drop packets.
8) Discontinue the Frameword error.
Reporting Format:
The results of the IP packet loss due to TOH errors test SHOULD be
reported in a form of a table. The rows SHOULD be labeled single
error, one error per second, and four consecutive errors every 6
IP PDUs. The columns SHOULD be labeled packet loss and number of
packets lost. The elements of column 1 SHOULD be either True or
False, indicating whether the particular condition was observed
for each test. The elements of column 2 SHOULD be non-negative
integers.
The table MUST also indicate the packet size in octets and traffic
rate in packets per second as generated by the test device.
3.1.3. Path Overhead (POH) Error Count
3.1.3.1. POH Error Propagation.
Objective: To determine that the SUT does not propagate POH errors as
defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the uni-directional
configuration.
2) Send a specific number of IP PDUs at a specific rate through the
SUT. Since this test is not a throughput test, the rate should
not be greater than 90% of line rate. The cell payload SHOULD
contain valid IP PDUs. The IP PDUs MUST be encapsulated in AAL5.
Dunn & Martin Informational [Page 24]
RFC 3116 Methodology for ATM Benchmarking June 2001
3) Count the IP PDUs that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test, else lower the test device
traffic rate until the counts are the same.
4) Inject one error in the B3 (Path BIP8) byte. Verify that the SUT
does not propagate the error.
5) Inject one error in the B3 byte every 1 second. Verify that the
SUT does not propagate the error.
6) Discontinue the POH error.
Reporting Format:
The results of the POH error propagation test SHOULD be reported
in a form of a table. The rows SHOULD be labeled single error
and one error per second. The columns SHOULD be labeled error
propagated and loss of IP PDU. The elements of the table SHOULD
be either True or False, indicating whether the particular
condition was observed for each test.
The table MUST also indicate the IP PDU size in octets and
traffic rate in IP PDUs per second as generated by the test
device.
3.1.3.2. Cell Loss due to POH Error.
Objective: To determine if the SUT will drop cells due POH Errors as
defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the uni-directional
configuration.
2) Send a specific number of cells at a specific rate through the
SUT. Since this test is not a throughput test, the rate should
not be greater than 90% of line rate. The cell payload SHOULD
contain valid IP PDUs. The IP PDUs MUST be encapsulated in AAL5.
3) Count the cells that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
4) Inject one error in the B3 (Path BIP8) byte. Verify that the SUT
does not drop any cells.
Dunn & Martin Informational [Page 25]
RFC 3116 Methodology for ATM Benchmarking June 2001
5) Inject one error in the B3 byte every 1 second. Verify that the
SUT does not drop any cells.
6) Discontinue the POH error.
Reporting Format:
The results of the Cell Loss due to POH errors test SHOULD be
reported in a form of a table. The rows SHOULD be labeled single
error and one error per second. The columns SHOULD be labeled
cell loss and number of cells lost. The elements of column 1
SHOULD be either True or False, indicating whether the particular
condition was observed for each test. The elements of column 2
SHOULD be non-negative integers.
The table MUST also indicate the traffic rate in IP PDUs per
second as generated by the test device.
3.1.3.3. IP Packet Loss due to POH Error.
Objective: To determine if the SUT will drop IP packets due to POH
errors as defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the uni-directional
configuration.
2) Send a specific number of IP packets at a specific rate through
the SUT. Since this test is not a throughput test, the rate
should not be greater than 90% of line rate. The IP PDUs MUST be
encapsulated in AAL5.
3) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
4) Inject one error in the B3 (Path BIP8) byte. Verify that the SUT
does not drop any packets.
5) Inject one error in the B3 byte every 1 second. Verify that the
SUT does not drop any packets.
6) Discontinue the POH error.
Dunn & Martin Informational [Page 26]
RFC 3116 Methodology for ATM Benchmarking June 2001
Reporting Format:
The results of the IP packet loss due to POH errors test SHOULD be
reported in a form of a table. The rows SHOULD be labeled single
error and one error per second. The columns SHOULD be labeled
packet loss and number of packets lost. The elements of column 1
SHOULD be either True or False, indicating whether the particular
condition was observed for each test. The elements of column 2
SHOULD be non-negative integers.
The table MUST also indicate the packet size in octets and traffic
rate in packets per second as generated by the test device.
3.2. ATM Layer
3.2.1. Two-Point Cell Delay Variation (CDV)
3.2.1.1. Test Setup
The cell delay measurements assume that both the transmitter and
receiver timestamp information is synchronized. Synchronization
SHOULD be achieved by supplying a common clock signal (minimum of 100
Mhz or 10 ns resolution) to both the transmitter and receiver. The
maximum timestamp values MUST be recorded to ensure synchronization
in the case of counter rollover. The cell delay measurements SHOULD
utilize the O.191 cell (ITUT-O.191) encapsulated in a valid IP
packet. If the O.191 cell is not available, a test cell encapsulated
in a valid IP packet MAY be used. The test cell MUST contain a
transmit timestamp which can be correlated with a receive timestamp.
A description of the test cell MUST be included in the test results.
The description MUST include the timestamp length (in bits), counter
rollover value, and the timestamp accuracy (in ns).
3.2.1.2. Two-point CDV/Steady Load/One VCC
Objective: To determine the SUT variation in cell transfer delay with
one VCC as defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as either a CBR,
VBR, or UBR connection. The VPI/VCI MUST not be one of the
reserved ATM signaling channels (e.g., [0,5], [0,16]).
Dunn & Martin Informational [Page 27]
RFC 3116 Methodology for ATM Benchmarking June 2001
3) Send a specific number of IP packets containing timestamps at a
specific constant rate through the SUT via the defined test VCC.
Since this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device.
Reporting Format:
The results of the Two-point CDV/Steady Load/One VCC test SHOULD
be reported in a form of text, graph, and histogram.
The text results SHOULD display the numerical values of the CDV.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, maximum
and minimum CDV during the test in us, and peak-to-peak CDV in us.
The graph results SHOULD display the cell delay values. The x-
coordinate SHOULD be the test run time in either seconds, minutes
or days depending on the total length of the test. The x-
coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the cell delay in us. The integration time per point MUST be
indicated.
The histogram results SHOULD display the peak-to-peak cell delay.
The x-coordinate SHOULD be the cell delay in us with at least 256
bins. The y-coordinate SHOULD be the number of cells observed in
each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
bearer class of the created VCC MUST also be indicated.
3.2.1.3. Two-point CDV/Steady Load/Twelve VCCs
Objective: To determine the SUT variation in cell transfer delay with
twelve VCCs as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Dunn & Martin Informational [Page 28]
RFC 3116 Methodology for ATM Benchmarking June 2001
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC's MUST be configured as either a CBR, VBR,
or UBR connection. The VPI/VCIs MUST not be one of the reserved
ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps at a
specific constant rate through the SUT via the defined test VCCs.
All of the VPI/VCI pairs will generate traffic at the same
traffic rate. Since this test is not a throughput test, the rate
should not be greater than 90% of line rate. The IP PDUs MUST be
encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCCs.
Reporting Format:
The results of the Two-point CDV/Steady Load/Twelve VCCs test
SHOULD be reported in a form of text, graph, and histograms.
The text results SHOULD display the numerical values of the CDV.
The values given SHOULD include: time period of test in s, test
VPI/VCI values, total number of cells transmitted and received on
each VCC during the test in positive integers, maximum and minimum
CDV on each VCC during the test in us, and peak-to-peak CDV on
each VCC in us.
The graph results SHOULD display the cell delay values. The x-
coordinate SHOULD be the test run time in either seconds, minutes
or days depending on the total length of the test. The x-
coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the cell delay for each VCC in ms. There SHOULD be 12 curves
on the graph, one curves indicated and labeled for each VCC. The
integration time per point MUST be indicated.
Dunn & Martin Informational [Page 29]
RFC 3116 Methodology for ATM Benchmarking June 2001
The histograms SHOULD display the peak-to-peak cell delay. There
will be one histogram for each VCC. The x-coordinate SHOULD be
the cell delay in us with at least 256 bins. The y-coordinate
SHOULD be the number of cells observed in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
bearer class of the created VCC MUST also be indicated.
3.2.1.4. Two-point CDV/Steady Load/Maximum VCCs
Objective: To determine the SUT variation in cell transfer delay with
the maximum number VCCs supported on the SUT as defined in RFC 2761
"Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. The VCC's MUST be configured as either a CBR, VBR, or UBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps at a
specific constant rate through the SUT via the defined test VCCs.
All of the VPI/VCI pairs will generate traffic at the same
traffic rate. Since this test is not a throughput test, the rate
should not be greater than 90% of line rate. The IP PDUs MUST be
encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCCs.
Reporting Format:
The results of the Two-point CDV/Steady Load/Maximum VCCs test
SHOULD be reported in a form of text, graphs, and histograms.
Dunn & Martin Informational [Page 30]
RFC 3116 Methodology for ATM Benchmarking June 2001
The text results SHOULD display the numerical values of the CDV.
The values given SHOULD include: time period of test in s, test
VPI/VCI values, total number of cells transmitted and received on
each VCC during the test in positive integers, maximum and minimum
CDV on each VCC during the test in us, and peak-to-peak CDV on
each VCC in us.
The graph results SHOULD display the cell delay values. There
will be (Max number of VCCs/10) graphs, with 10 VCCs indicated on
each graph. The x-coordinate SHOULD be the test run time in
either seconds, minutes or days depending on the total length of
the test. The x-coordinate time SHOULD be configurable. The y-
coordinate SHOULD be the cell delay for each VCC in us. There
SHOULD be no more than 10 curves on each graph, one curve
indicated and labeled for each VCC. The integration time per
point MUST be indicated.
The histograms SHOULD display the peak-to-peak cell delay. There
will be one histogram for each VCC. The x-coordinate SHOULD be
the cell delay in us with at least 256 bins. The y-coordinate
SHOULD be the number of cells observed in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
bearer class of the created VCC MUST also be indicated.
3.2.1.5. Two-point CDV/Bursty VBR Load/One VCC
Objective: To determine the SUT variation in cell transfer delay with
one VCC as defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as either a CBR
or VBR connection. The VPI/VCI MUST not be one of the reserved
ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps at a
specific VBR through the SUT via the defined test VCC. Since
this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
Dunn & Martin Informational [Page 31]
RFC 3116 Methodology for ATM Benchmarking June 2001
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device.
Reporting Format:
The results of the Two-point CDV/Bursty VBR Load/One VCC test
SHOULD be reported in a form of text, graph, and histogram.
The text results SHOULD display the numerical values of the CDV.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, maximum
and minimum CDV during the test in us, and peak-to-peak CDV in us.
The graph results SHOULD display the cell delay values. The x-
coordinate SHOULD be the test run time in either seconds, minutes
or days depending on the total length of the test. The x-
coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the cell delay in us. The integration time per point MUST be
indicated.
The histogram results SHOULD display the peak-to-peak cell delay.
The x-coordinate SHOULD be the cell delay in us with at least 256
bins. The y-coordinate SHOULD be the number of cells observed in
each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.1.6. Two-point CDV/Bursty VBR Load/Twelve VCCs
Objective: To determine the SUT variation in cell transfer delay with
twelve VCCs as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
Dunn & Martin Informational [Page 32]
RFC 3116 Methodology for ATM Benchmarking June 2001
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC's MUST be configured as either a CBR or VBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps at a
specific VBR through the SUT via the defined test VCCs. All of
the VPI/VCI pairs will generate traffic at the same traffic rate.
Since this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCCs.
Reporting Format:
The results of the Two-point CDV/Bursty VBR Load/Twelve VCCs test
SHOULD be reported in a form of text, graph, and histograms.
The text results SHOULD display the numerical values of the CDV.
The values given SHOULD include: time period of test in s, test
VPI/VCI values, total number of cells transmitted and received on
each VCC during the test in positive integers, maximum and minimum
CDV on each VCC during the test in us, and peak-to-peak CDV on
each VCC in us.
The graph results SHOULD display the cell delay values. The x-
coordinate SHOULD be the test run time in either seconds, minutes
or days depending on the total length of the test. The x-
coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the cell delay for each VCC in ms. There SHOULD be 12 curves
on the graph, one curves indicated and labeled for each VCC. The
integration time per point MUST be indicated.
The histograms SHOULD display the peak-to-peak cell delay. There
will be one histogram for each VCC. The x-coordinate SHOULD be
the cell delay in us with at least 256 bins. The y-coordinate
SHOULD be the number of cells observed in each bin.
Dunn & Martin Informational [Page 33]
RFC 3116 Methodology for ATM Benchmarking June 2001
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.1.7. Two-point CDV/Bursty VBR Load/Maximum VCCs
Objective: To determine the SUT variation in cell transfer delay with
the maximum number VCCs supported on the SUT as defined in RFC 2761
"Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. The VCC's MUST be configured as either a CBR or VBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps at a
specific VBR through the SUT via the defined test VCCs. All of
the VPI/VCI pairs will generate traffic at the same traffic rate.
Since this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCCs.
Reporting Format:
The results of the Two-point CDV/Bursty VBR Load/Maximum VCCs test
SHOULD be reported in a form of text, graphs, and histograms.
The text results SHOULD display the numerical values of the CDV.
The values given SHOULD include: time period of test in s, test
VPI/VCI values, total number of cells transmitted and received on
Dunn & Martin Informational [Page 34]
RFC 3116 Methodology for ATM Benchmarking June 2001
each VCC during the test in positive integers, maximum and minimum
CDV on each VCC during the test in us, and peak-to-peak CDV on
each VCC in us.
The graph results SHOULD display the cell delay values. There
will be (Max number of VCCs/10) graphs, with 10 VCCs indicated on
each graph. The x-coordinate SHOULD be the test run time in
either seconds, minutes or days depending on the total length of
the test. The x-coordinate time SHOULD be configurable. The y-
coordinate SHOULD be the cell delay for each VCC in us. There
SHOULD be no more than 10 curves on each graph, one curve
indicated and labeled for each VCC. The integration time per
point MUST be indicated.
The histograms SHOULD display the peak-to-peak cell delay. There
will be one histogram for each VCC. The x-coordinate SHOULD be
the cell delay in us with at least 256 bins. The y-coordinate
SHOULD be the number of cells observed in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.1.8. Two-point CDV/Mixed Load/Three VCC's
Objective: To determine the SUT variation in cell transfer delay with
three VCC's as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with three VCC's. Each VCC
MUST be defined as a different Bearer class: one CBR, one UBR and
one VBR. Each VCC SHOULD contain one VPI/VCI. The VPI/VCI MUST
not be one of the reserved ATM signaling channels (e.g., [0,5],
[0,16]).
3) Send a specific number of IP packets containing timestamps
through the SUT via the defined test VCCs. Each generated VCC
stream MUST match the corresponding VCC Bearer class. All of the
VPI/VCI pairs will generate traffic at the same traffic rate.
Dunn & Martin Informational [Page 35]
RFC 3116 Methodology for ATM Benchmarking June 2001
Since this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCC's.
Reporting Format:
The results of the Two-point CDV/Mixed Load/Three VCC test SHOULD
be reported in a form of text, graph, and histogram.
The text results SHOULD display the numerical values of the CDV.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, maximum
and minimum CDV during the test in us, and peak-to-peak CDV in us.
The graph results SHOULD display the cell delay values. The x-
coordinate SHOULD be the test run time in either seconds, minutes
or days depending on the total length of the test. The x-
coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the cell delay in us. The integration time per point MUST be
indicated.
The histogram results SHOULD display the peak-to-peak cell delay.
The x-coordinate SHOULD be the cell delay in us with at least 256
bins. The y-coordinate SHOULD be the number of cells observed in
each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.1.9. Two-point CDV/Mixed Load/Twelve VCCs
Objective: To determine the SUT variation in cell transfer delay with
twelve VCCs as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Dunn & Martin Informational [Page 36]
RFC 3116 Methodology for ATM Benchmarking June 2001
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCC's. Each VCC
MUST be defined as one of the Bearer classes for a total of four
CBR, four UBR and four VBR VCC's. Each VCC SHOULD contain one
VPI/VCI. The VPI/VCI MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps
through the SUT via the defined test VCCs. Each generated VCC
stream MUST match the corresponding VCC Bearer class. All of the
VPI/VCI pairs will generate traffic at the same traffic rate.
Since this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCCs.
Reporting Format:
The results of the Two-point CDV/Mixed Load/Twelve VCCs test
SHOULD be reported in a form of text, graph, and histograms.
The text results SHOULD display the numerical values of the CDV.
The values given SHOULD include: time period of test in s, test
VPI/VCI values, total number of cells transmitted and received on
each VCC during the test in positive integers, maximum and minimum
CDV on each VCC during the test in us, and peak-to-peak CDV on
each VCC in us.
The graph results SHOULD display the cell delay values. The x-
coordinate SHOULD be the test run time in either seconds, minutes
or days depending on the total length of the test. The x-
coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the cell delay for each VCC in ms. There SHOULD be 12 curves
on the graph, one curves indicated and labeled for each VCC. The
integration time per point MUST be indicated.
Dunn & Martin Informational [Page 37]
RFC 3116 Methodology for ATM Benchmarking June 2001
The histograms SHOULD display the peak-to-peak cell delay. There
will be one histogram for each VCC. The x-coordinate SHOULD be
the cell delay in us with at least 256 bins. The y-coordinate
SHOULD be the number of cells observed in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.1.10. Two-point CDV/Mixed Load/Maximum VCCs
Objective: To determine the SUT variation in cell transfer delay with
the maximum number VCCs supported on the SUT as defined in RFC 2761
"Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. Each VCC MUST be defined as one of the Bearer classes for a
total of (max VCC/3) CBR, (max VCC/3) UBR and (max VCC/3) VBR
VCC's. If the maximum number of VCC's is not divisible by 3, the
total for each bearer class MUST be within 3 VCC's of each other.
The VPI/VCI MUST not be one of the reserved ATM signaling
channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps
through the SUT via the defined test VCCs. Each generated VCC
stream MUST match the corresponding VCC Bearer class. All of the
VPI/VCI pairs will generate traffic at the same traffic rate.
Since this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCCs.
Dunn & Martin Informational [Page 38]
RFC 3116 Methodology for ATM Benchmarking June 2001
Reporting Format:
The results of the Two-point CDV/Mixed Load/Maximum VCCs test
SHOULD be reported in a form of text, graphs, and histograms.
The text results SHOULD display the numerical values of the CDV.
The values given SHOULD include: time period of test in s, test
VPI/VCI values, total number of cells transmitted and received on
each VCC during the test in positive integers, maximum and minimum
CDV on each VCC during the test in us, and peak-to-peak CDV on
each VCC in us.
The graph results SHOULD display the cell delay values. There
will be (Max number of VCCs/10) graphs, with 10 VCCs indicated on
each graph. The x-coordinate SHOULD be the test run time in
either seconds, minutes or days depending on the total length of
the test. The x-coordinate time SHOULD be configurable. The y-
coordinate SHOULD be the cell delay for each VCC in us. There
SHOULD be no more than 10 curves on each graph, one curve
indicated and labeled for each VCC. The integration time per
point MUST be indicated.
The histograms SHOULD display the peak-to-peak cell delay. There
will be one histogram for each VCC. The x-coordinate SHOULD be
the cell delay in us with at least 256 bins. The y-coordinate
SHOULD be the number of cells observed in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.2. Cell Error Ratio (CER)
3.2.2.1. Test Setup
The cell error ratio measurements assume that both the transmitter
and receiver payload information is synchronized. Synchronization
MUST be achieved by supplying a known bit pattern to both the
transmitter and receiver. If this bit pattern is longer than the
packet size, the receiver MUST synchronize with the transmitter
before tests can be run.
Dunn & Martin Informational [Page 39]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.2.2.2. CER/Steady Load/One VCC
Objective: To determine the SUT ratio of errored cells on one VCC in
a transmission in relation to the total cells sent as defined in RFC
2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as either a CBR,
VBR, or UBR connection. The VPI/VCI MUST not be one of the
reserved ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing one of the
specified bit patterns at a constant rate through the SUT via the
defined test VCC. Since this test is not a throughput test, the
rate should not be greater than 90% of line rate. The IP PDUs
MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the number of bit errors at the receiver end of the test
device.
Reporting Format:
The results of the CER/Steady Load/One VCC test SHOULD be reported
in a form of text and graph.
The text results SHOULD display the numerical values of the CER.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CER for the entire test.
The graph results SHOULD display the cell error ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CER. The integration time per point MUST be indicated.
Dunn & Martin Informational [Page 40]
RFC 3116 Methodology for ATM Benchmarking June 2001
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
3.2.2.3. CER/Steady Load/Twelve VCCs
Objective: To determine the SUT ratio of errored cells on twelve VCCs
in a transmission in relation to the total cells sent as defined in
RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC's MUST be configured as either a CBR, VBR,
or UBR connection. The VPI/VCIs MUST not be one of the reserved
ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing one of the
specified bit patterns at a constant rate through the SUT via the
defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of bit errors at the receiver end of the test
device for all VCCs.
Reporting Format:
The results of the CER/Steady Load/Twelve VCCs test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CER.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CER for the entire test.
Dunn & Martin Informational [Page 41]
RFC 3116 Methodology for ATM Benchmarking June 2001
The graph results SHOULD display the cell error ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CER for each VCC. There should be 12 curves on the graph,
on curve indicated and labeled for each VCC. The integration time
per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
3.2.2.4. CER/Steady Load/Maximum VCCs
Objective: To determine the SUT ratio of errored cells with the
maximum number VCCs supported on the SUT in a transmission in
relation to the total cells sent as defined in RFC 2761 "Terminology
for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. The VCC's MUST be configured as either a CBR, VBR, or UBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing one of the
specified bit patterns at a constant rate through the SUT via the
defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of bit errors at the receiver end of the test
device for all VCCs.
Dunn & Martin Informational [Page 42]
RFC 3116 Methodology for ATM Benchmarking June 2001
Reporting Format:
The results of the CER/Steady Load/Maximum VCCs test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CER.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CER for the entire test.
The graph results SHOULD display the cell error ratio values.
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the CER for each VCC. There SHOULD be
no more than 10 curves on each graph, one curve indicated and
labeled for each VCC. The integration time per point MUST be
indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
3.2.2.5. CER/Bursty VBR Load/One VCC
Objective: To determine the SUT ratio of errored cells on one VCC in
a transmission in relation to the total cells sent as defined in RFC
2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as either a CBR
or VBR connection. The VPI/VCI MUST not be one of the reserved
ATM signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and
MBS must be configured using one of the specified traffic
descriptors.
Dunn & Martin Informational [Page 43]
RFC 3116 Methodology for ATM Benchmarking June 2001
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific VBR rate through the SUT via
the defined test VCC. Since this test is not a throughput test,
the rate should not be greater than 90% of line rate. The IP
PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the number of bit errors at the receiver end of the test
device.
Reporting Format:
The results of the CER/Bursty VBR Load/One VCC test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CER.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CER for the entire test.
The graph results SHOULD display the cell error ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CER. The integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
3.2.2.6. CER/Bursty VBR Load/Twelve VCCs
Objective: To determine the SUT ratio of errored cells on twelve VCCs
in a transmission in relation to the total cells sent as defined in
RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
Dunn & Martin Informational [Page 44]
RFC 3116 Methodology for ATM Benchmarking June 2001
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC's MUST be configured as either a CBR or VBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and MBS
must be configured using one of the specified traffic
descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific VBR rate through the SUT via
the defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The PCR, SCR, and MBS must be indicated. The IP PDUs MUST
be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of bit errors at the receiver end of the test
device for all VCCs.
Reporting Format:
The results of the CER/Bursty VBR Load/Twelve VCCs test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CER.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CER for the entire test.
The graph results SHOULD display the cell error ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CER for each VCC. There should be 12 curves on the graph,
on curve indicated and labeled for each VCC. The integration time
per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
Dunn & Martin Informational [Page 45]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.2.2.7. CER/Bursty VBR Load/Maximum VCCs
Objective: To determine the SUT ratio of errored cells with the
maximum number VCCs supported on the SUT in a transmission in
relation to the total cells sent as defined in RFC 2761 "Terminology
for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. The VCC's MUST be configured as either a CBR or VBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and MBS
must be configured using one of the specified traffic
descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific VBR rate through the SUT via
the defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of bit errors at the receiver end of the test
device for all VCCs.
Reporting Format:
The results of the CER/Bursty VBR Load/Maximum VCCs test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CER.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CER for the entire test.
Dunn & Martin Informational [Page 46]
RFC 3116 Methodology for ATM Benchmarking June 2001
The graph results SHOULD display the cell error ratio values.
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the CER for each VCC. There SHOULD be
no more than 10 curves on each graph, one curve indicated and
labeled for each VCC. The integration time per point MUST be
indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
3.2.3. Cell Loss Ratio (CLR)
3.2.3.1. CLR/Steady Load/One VCC
Objective: To determine the SUT ratio of lost cells on one VCC in a
transmission in relation to the total cells sent as defined in RFC
2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as either a CBR,
VBR, or UBR connection. The VPI/VCI MUST not be one of the
reserved ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets at a specific constant rate
through the SUT via the defined test VCC. Since this test is not
a throughput test, the rate should not be greater than 90% of
line rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the number of cells transmitted and received on the test
device.
Dunn & Martin Informational [Page 47]
RFC 3116 Methodology for ATM Benchmarking June 2001
Reporting Format:
The results of the CLR/Steady Load/One VCC test SHOULD be reported
in a form of text and graph.
The text results SHOULD display the numerical values of the CLR.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CLR for the entire test.
The graph results SHOULD display the Cell Loss ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CLR. The integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.3.2. CLR/Steady Load/Twelve VCCs
Objective: To determine the SUT ratio of lost cells on twelve VCCs in
a transmission in relation to the total cells sent as defined in RFC
2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC's MUST be configured as either a CBR, VBR,
or UBR connection. The VPI/VCIs MUST not be one of the reserved
ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets at a specific constant rate
through the SUT via the defined test VCCs. All of the VPI/VCI
pairs will generate traffic at the same traffic rate. Since this
test is not a throughput test, the rate should not be greater
than 90% of line rate. The IP PDUs MUST be encapsulated in AAL5.
Dunn & Martin Informational [Page 48]
RFC 3116 Methodology for ATM Benchmarking June 2001
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of cells transmitted and received per VCC on
the test device.
Reporting Format:
The results of the CLR/Steady Load/Twelve VCCs test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CLR.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CLR for the entire test.
The graph results SHOULD display the Cell Loss ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CLR for each VCC. There should be 12 curves on the graph,
on curve indicated and labeled for each VCC. The integration time
per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.3.3. CLR/Steady Load/Maximum VCCs
Objective: To determine the SUT ratio of lost cells with the maximum
number VCCs supported on the SUT in a transmission in relation to the
total cells sent as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
Dunn & Martin Informational [Page 49]
RFC 3116 Methodology for ATM Benchmarking June 2001
VPI. The VCC's MUST be configured as either a CBR, VBR, or UBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets at a specific constant rate
through the SUT via the defined test VCCs. All of the VPI/VCI
pairs will generate traffic at the same traffic rate. Since this
test is not a throughput test, the rate should not be greater
than 90% of line rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of cells transmitted and received per VCC on
the test device.
Reporting Format:
The results of the CLR/Steady Load/Maximum VCCs test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CLR.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CLR for the entire test.
The graph results SHOULD display the Cell Loss ratio values.
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the CLR for each VCC. There SHOULD be
no more than 10 curves on each graph, one curve indicated and
labeled for each VCC. The integration time per point MUST be
indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
Dunn & Martin Informational [Page 50]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.2.3.4. CLR/Bursty VBR Load/One VCC
Objective: To determine the SUT ratio of lost cells on one VCC in a
transmission in relation to the total cells sent as defined in RFC
2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as either a CBR
or VBR connection. The VPI/VCI MUST not be one of the reserved
ATM signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and
MBS must be configured using one of the specified traffic
descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific rate through the SUT via the
defined test VCC. Since this test is not a throughput test, the
rate should not be greater than 90% of line rate. The IP PDUs
MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the number of cells transmitted and received on the test
device.
Reporting Format:
The results of the CLR/Bursty VBR Load/One VCC test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CLR.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CLR for the entire test.
The graph results SHOULD display the Cell Loss ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CLR. The integration time per point MUST be indicated.
Dunn & Martin Informational [Page 51]
RFC 3116 Methodology for ATM Benchmarking June 2001
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.3.5. CLR/Bursty VBR Load/Twelve VCCs
Objective: To determine the SUT ratio of lost cells on twelve VCCs in
a transmission in relation to the total cells sent as defined in RFC
2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC MUST be configured as either a CBR or VBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and MBS
must be configured using one of the specified traffic
descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific rate through the SUT via the
defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The PCR, SCR, and MBS must be indicated. The IP PDUs MUST
be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of cells transmitted and received per VCC on
the test device.
Reporting Format:
The results of the CLR/Bursty VBR Load/Twelve VCCs test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CLR.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
Dunn & Martin Informational [Page 52]
RFC 3116 Methodology for ATM Benchmarking June 2001
the given VPI/VCI during the test in positive integers, and the
CLR for the entire test.
The graph results SHOULD display the Cell Loss ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CLR for each VCC. There should be 12 curves on the graph,
on curve indicated and labeled for each VCC. The integration time
per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.3.6. CLR/Bursty VBR Load/Maximum VCCs
Objective: To determine the SUT ratio of lost cells with the maximum
number VCCs supported on the SUT in a transmission in relation to the
total cells sent as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. The VCC MUST be configured as either a CBR or VBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and MBS
must be configured using one of the specified traffic
descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific rate through the SUT via the
defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The IP PDUs MUST be encapsulated in AAL5.
Dunn & Martin Informational [Page 53]
RFC 3116 Methodology for ATM Benchmarking June 2001
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of cells transmitted and received per VCC on
the test device.
Reporting Format:
The results of the CLR/Bursty VBR Load/Maximum VCCs test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CLR.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CLR for the entire test.
The graph results SHOULD display the Cell Loss ratio values.
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the CLR for each VCC. There SHOULD be
no more than 10 curves on each graph, one curve indicated and
labeled for each VCC. The integration time per point MUST be
indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.4. Cell Misinsertion Rate (CMR)
3.2.4.1. CMR/Steady Load/One VCC
Objective: To determine the SUT ratio of cell misinsertion on one VCC
in a transmission in relation to the total cells sent as defined in
RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
Dunn & Martin Informational [Page 54]
RFC 3116 Methodology for ATM Benchmarking June 2001
2) Configure the SUT and test device with one VCC. The VCC MUST be
configured as either a CBR, VBR, or UBR connection. The VCC
SHOULD contain one VPI/VCI. The VPI/VCI MUST not be one of the
reserved ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets at a specific constant rate
through the SUT via the defined test VCC. Since this test is not
a throughput test, the rate should not be greater than 90% of
line rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the number of cell misinsertion errors at the receiver end
of the test device.
Reporting Format:
The results of the CMR/Steady Load/One VCC test SHOULD be reported
in a form of text and graph.
The text results SHOULD display the numerical values of the CMR.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CMR for the entire test.
The graph results SHOULD display the Cell misinsertion rate
values. The x-coordinate SHOULD be the test run time in either
seconds, minutes or days depending on the total length of the
test. The x-coordinate time SHOULD be configurable. The y-
coordinate SHOULD be the CMR. The integration time per point MUST
be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.4.2. CMR/Steady Load/Twelve VCCs
Objective: To determine the SUT rate of misinserted cells on twelve
VCCs in a transmission in relation to the total cells sent as defined
in RFC 2761 "Terminology for ATM Benchmarking".
Dunn & Martin Informational [Page 55]
RFC 3116 Methodology for ATM Benchmarking June 2001
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC's MUST be configured as either a CBR, VBR,
or UBR connection. The VPI/VCIs MUST not be one of the reserved
ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets at a specific constant rate
through the SUT via the defined test VCCs. All of the VPI/VCI
pairs will generate traffic at the same traffic rate. Since this
test is not a throughput test, the rate should not be greater
than 90% of line rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of cell misinsertion errors at the receiver end
of the test device per VCC.
Reporting Format:
The results of the CMR/Steady Load/Twelve VCCs test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CMR.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CMR for the entire test.
The graph results SHOULD display the Cell misinsertion rate
values. The x-coordinate SHOULD be the test run time in either
seconds, minutes or days depending on the total length of the
test. The x-coordinate time SHOULD be configurable. The y-
coordinate SHOULD be the CMR for each VCC. There should be 12
curves on the graph, on curve indicated and labeled for each VCC.
The integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
Dunn & Martin Informational [Page 56]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.2.4.3. CMR/Steady Load/Maximum VCCs
Objective: To determine the SUT rate of misinserted cells with the
maximum number VCCs supported on the SUT in a transmission in
relation to the total cells sent as defined in RFC 2761 "Terminology
for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. The VCC's MUST be configured as either a CBR, VBR, or UBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets at a specific constant rate
through the SUT via the defined test VCCs. All of the VPI/VCI
pairs will generate traffic at the same traffic rate. Since this
test is not a throughput test, the rate should not be greater
than 90% of line rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of cell misinsertion errors at the receiver end
of the test device per VCC.
Reporting Format:
The results of the CMR/Steady Load/Maximum VCCs test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CMR.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CMR for the entire test.
The graph results SHOULD display the Cell misinsertion rate
values. There will be (Max number of VCCs/10) graphs, with 10
VCCs indicated on each graph. The x-coordinate SHOULD be the test
run time in either seconds, minutes or days depending on the total
Dunn & Martin Informational [Page 57]
RFC 3116 Methodology for ATM Benchmarking June 2001
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the CMR for each VCC. There SHOULD be
no more than 10 curves on each graph, one curve indicated and
labeled for each VCC. The integration time per point MUST be
indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.4.4. CMR/Bursty VBR Load/One VCC
Objective: To determine the SUT rate of misinserted cells on one VCC
in a transmission in relation to the total cells sent as defined in
RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as either a CBR
or VBR connection. The VPI/VCI MUST not be one of the reserved
ATM signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and
MBS must be configured using one of the specified traffic
descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific rate through the SUT via the
defined test VCC. Since this test is not a throughput test, the
rate should not be greater than 90% of line rate. The IP PDUs
MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the number of cell misinsertion errors at the receiver end
of the test device.
Reporting Format:
The results of the CMR/Bursty VBR Load/One VCC test SHOULD be
reported in a form of text and graph.
Dunn & Martin Informational [Page 58]
RFC 3116 Methodology for ATM Benchmarking June 2001
The text results SHOULD display the numerical values of the CMR.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CMR for the entire test.
The graph results SHOULD display the Cell misinsertion rate
values. The x-coordinate SHOULD be the test run time in either
seconds, minutes or days depending on the total length of the
test. The x-coordinate time SHOULD be configurable. The y-
coordinate SHOULD be the CMR. The integration time per point MUST
be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.4.5. CMR/Bursty VBR Load/Twelve VCCs
Objective: To determine the SUT rate of misinserted cells on twelve
VCCs in a transmission in relation to the total cells sent as defined
in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC's MUST be configured as either a CBR or VBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and MBS
must be configured using one of the specified traffic
descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific rate through the SUT via the
defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The PCR, SCR, and MBS must be indicated. The IP PDUs MUST
be encapsulated in AAL5.
Dunn & Martin Informational [Page 59]
RFC 3116 Methodology for ATM Benchmarking June 2001
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of cell misinsertion errors at the receiver end
of the test device per VCC.
Reporting Format:
The results of the CMR/Bursty VBR Load/Twelve VCCs test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CMR.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CMR for the entire test.
The graph results SHOULD display the Cell misinsertion rate
values. The x-coordinate SHOULD be the test run time in either
seconds, minutes or days depending on the total length of the
test. The x-coordinate time SHOULD be configurable. The y-
coordinate SHOULD be the CMR for each VCC. There should be 12
curves on the graph, on curve indicated and labeled for each VCC.
The integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.4.6. CMR/Bursty VBR Load/Maximum VCCs
Objective: To determine the SUT rate of misinserted cells with the
maximum number VCCs supported on the SUT in a transmission in
relation to the total cells sent as defined in RFC 2761 "Terminology
for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
Dunn & Martin Informational [Page 60]
RFC 3116 Methodology for ATM Benchmarking June 2001
VPI. The VCC's MUST be configured as either a CBR or VBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and MBS
must be configured using one of the specified traffic
descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific rate through the SUT via the
defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of cell misinsertion errors at the receiver end
of the test device per VCC.
Reporting Format:
The results of the CMR/Bursty VBR Load/Maximum VCCs test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CMR.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, and the
CMR for the entire test.
The graph results SHOULD display the Cell misinsertion rate
values. There will be (Max number of VCCs/10) graphs, with 10
VCCs indicated on each graph. The x-coordinate SHOULD be the test
run time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the CMR for each VCC. There SHOULD be
no more than 10 curves on each graph, one curve indicated and
labeled for each VCC. The integration time per point MUST be
indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
Dunn & Martin Informational [Page 61]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.2.5. CRC Error Ratio (CRC-ER)
3.2.5.1. CRC-ER/Steady Load/One VCC
Objective: To determine the SUT ratio of CRC errors on one VCC in a
transmission in relation to the total cells sent as defined in RFC
2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as either a CBR,
VBR, or UBR connection. The VPI/VCI MUST not be one of the
reserved ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets at a specific constant rate
through the SUT via the defined test VCC. Since this test is not
a throughput test, the rate should not be greater than 90% of
line rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the number of CRC errored cells received on the test
device.
Reporting Format:
The results of the CRC-ER/Steady Load/One VCC test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CRC-
ER. The values given SHOULD include: time period of test in s,
test VPI/VCI value, total number of cells transmitted and received
on the given VPI/VCI during the test in positive integers, and the
CRC-ER for the entire test.
The graph results SHOULD display the CRC Error ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CRC-ER. The integration time per point MUST be indicated.
Dunn & Martin Informational [Page 62]
RFC 3116 Methodology for ATM Benchmarking June 2001
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.5.2. CRC-ER/Steady Load/Twelve VCCs
Objective: To determine the SUT ratio of lost cells on twelve VCCs in
a transmission in relation to the total cells sent as defined in RFC
2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC's MUST be configured as either a CBR, VBR,
or UBR connection. The VPI/VCIs MUST not be one of the reserved
ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets at a specific constant rate
through the SUT via the defined test VCCs. All of the VPI/VCI
pairs will generate traffic at the same traffic rate. Since this
test is not a throughput test, the rate should not be greater
than 90% of line rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of CRC errored cells received per VCC on the
test device.
Reporting Format:
The results of the CRC-ER/Steady Load/Twelve VCCs test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CRC-
ER. The values given SHOULD include: time period of test in s,
test VPI/VCI value, total number of cells transmitted and received
on the given VPI/VCI during the test in positive integers, and the
CRC-ER for the entire test.
Dunn & Martin Informational [Page 63]
RFC 3116 Methodology for ATM Benchmarking June 2001
The graph results SHOULD display the CRC Error ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CRC-ER for each VCC. There should be 12 curves on the
graph, on curve indicated and labeled for each VCC. The
integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.5.3. CRC-ER/Steady Load/Maximum VCCs
Objective: To determine the SUT ratio of lost cells with the maximum
number VCCs supported on the SUT in a transmission in relation to the
total cells sent as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. The VCC's MUST be configured as either a CBR, VBR, or UBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets at a specific constant rate
through the SUT via the defined test VCCs. All of the VPI/VCI
pairs will generate traffic at the same traffic rate. Since this
test is not a throughput test, the rate should not be greater
than 90% of line rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of CRC errored cells received per VCC on the
test device.
Dunn & Martin Informational [Page 64]
RFC 3116 Methodology for ATM Benchmarking June 2001
Reporting Format:
The results of the CRC-ER/Steady Load/Maximum VCCs test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CRC-
ER. The values given SHOULD include: time period of test in s,
test VPI/VCI value, total number of cells transmitted and received
on the given VPI/VCI during the test in positive integers, and the
CRC-ER for the entire test.
The graph results SHOULD display the CRC Error ratio values.
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the CRC-ER for each VCC. There SHOULD
be no more than 10 curves on each graph, one curve indicated and
labeled for each VCC. The integration time per point MUST be
indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.5.4. CRC-ER/Bursty VBR Load/One VCC
Objective: To determine the SUT ratio of lost cells on one VCC in a
transmission in relation to the total cells sent as defined in RFC
2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as either a CBR
or VBR connection. The VPI/VCI MUST not be one of the reserved
ATM signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and
MBS must be configured using one of the specified traffic
descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific rate through the SUT via the
defined test VCC. Since this test is not a throughput test, the
Dunn & Martin Informational [Page 65]
RFC 3116 Methodology for ATM Benchmarking June 2001
rate should not be greater than 90% of line rate. The IP PDUs
MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the number of CRC errored cells received per VCC on the
test device.
Reporting Format:
The results of the CRC-ER/Bursty VBR Load/One VCC test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CRC-
ER. The values given SHOULD include: time period of test in s,
test VPI/VCI value, total number of cells transmitted and received
on the given VPI/VCI during the test in positive integers, and the
CRC-ER for the entire test.
The graph results SHOULD display the CRC Error ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CRC-ER. The integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.5.5. CRC-ER/Bursty VBR Load/Twelve VCCs
Objective: To determine the SUT ratio of lost cells on twelve VCCs in
a transmission in relation to the total cells sent as defined in RFC
2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC MUST be configured as either a CBR or VBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
Dunn & Martin Informational [Page 66]
RFC 3116 Methodology for ATM Benchmarking June 2001
signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and MBS
must be configured using one of the specified traffic
descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific rate through the SUT via the
defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The PCR, SCR, and MBS must be indicated. The IP PDUs MUST
be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of CRC errored cells received per VCC on the
test device for all VCCs.
Reporting Format:
The results of the CRC-ER/Bursty VBR Load/Twelve VCCs test SHOULD
be reported in a form of text and graph.
The text results SHOULD display the numerical values of the CRC-
ER. The values given SHOULD include: time period of test in s,
test VPI/VCI value, total number of cells transmitted and received
on the given VPI/VCI during the test in positive integers, and the
CRC-ER for the entire test.
The graph results SHOULD display the CRC Error ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CRC-ER for each VCC. There should be 12 curves on the
graph, on curve indicated and labeled for each VCC. The
integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
Dunn & Martin Informational [Page 67]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.2.5.6. CRC-ER/Bursty VBR Load/Maximum VCCs
Objective: To determine the SUT ratio of lost cells with the maximum
number VCCs supported on the SUT in a transmission in relation to the
total cells sent as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. The VCC MUST be configured as either a CBR or VBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and MBS
must be configured using one of the specified traffic
descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific rate through the SUT via the
defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of CRC errored cells received per VCC on the
test device for all VCCs.
Reporting Format:
The results of the CRC-ER/Bursty VBR Load/Maximum VCCs test SHOULD
be reported in a form of text and graph.
The text results SHOULD display the numerical values of the CRC-
ER. The values given SHOULD include: time period of test in s,
test VPI/VCI value, total number of cells transmitted and received
on the given VPI/VCI during the test in positive integers, and the
CRC-ER for the entire test.
The graph results SHOULD display the CRC Error ratio values.
Dunn & Martin Informational [Page 68]
RFC 3116 Methodology for ATM Benchmarking June 2001
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the CRC-ER for each VCC. There SHOULD
be no more than 10 curves on each graph, one curve indicated and
labeled for each VCC. The integration time per point MUST be
indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.5.7. CRC-ER/Bursty UBR Load/One VCC
Objective: To determine the SUT ratio of lost cells on one VCC in a
transmission in relation to the total cells sent as defined in RFC
2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as a UBR
connection. The VPI/VCI MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and MBS
must be configured using one of the specified traffic
descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific rate through the SUT via the
defined test VCC. Since this test is not a throughput test, the
rate should not be greater than 90% of line rate. The IP PDUs
MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the number of CRC errored cells received per VCC on the
test device.
Dunn & Martin Informational [Page 69]
RFC 3116 Methodology for ATM Benchmarking June 2001
Reporting Format:
The results of the CRC-ER/Bursty UBR Load/One VCC test SHOULD be
reported in a form of text and graph.
The text results SHOULD display the numerical values of the CRC-
ER. The values given SHOULD include: time period of test in s,
test VPI/VCI value, total number of cells transmitted and received
on the given VPI/VCI during the test in positive integers, and the
CRC-ER for the entire test.
The graph results SHOULD display the CRC Error ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CRC-ER. The integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.5.8. CRC-ER/Bursty UBR Load/Twelve VCCs
Objective: To determine the SUT ratio of lost cells on twelve VCCs in
a transmission in relation to the total cells sent as defined in RFC
2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC MUST be configured as a UBR connection.
The VPI/VCIs MUST not be one of the reserved ATM signaling
channels (e.g., [0,5], [0,16]). The PCR, SCR, and MBS must be
configured using one of the specified traffic descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific rate through the SUT via the
defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The PCR, SCR, and MBS must be indicated. The IP PDUs MUST
be encapsulated in AAL5.
Dunn & Martin Informational [Page 70]
RFC 3116 Methodology for ATM Benchmarking June 2001
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of CRC errored cells received per VCC on the
test device for all VCCs.
Reporting Format:
The results of the CRC-ER/Bursty UBR Load/Twelve VCCs test SHOULD
be reported in a form of text and graph.
The text results SHOULD display the numerical values of the CRC-
ER. The values given SHOULD include: time period of test in s,
test VPI/VCI value, total number of cells transmitted and received
on the given VPI/VCI during the test in positive integers, and the
CRC-ER for the entire test.
The graph results SHOULD display the CRC Error ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CRC-ER for each VCC. There should be 12 curves on the
graph, on curve indicated and labeled for each VCC. The
integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.5.9. CRC-ER/Bursty UBR Load/Maximum VCCs
Objective: To determine the SUT ratio of lost cells with the maximum
number VCCs supported on the SUT in a transmission in relation to the
total cells sent as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
Dunn & Martin Informational [Page 71]
RFC 3116 Methodology for ATM Benchmarking June 2001
VPI. The VCC MUST be configured as a UBR connection. The
VPI/VCIs MUST not be one of the reserved ATM signaling channels
(e.g., [0,5], [0,16]). The PCR, SCR, and MBS must be configured
using one of the specified traffic descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific rate through the SUT via the
defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of CRC errored cells received per VCC on the
test device for all VCCs.
Reporting Format:
The results of the CRC-ER/Bursty UBR Load/Maximum VCCs test SHOULD
be reported in a form of text and graph.
The text results SHOULD display the numerical values of the CRC-
ER. The values given SHOULD include: time period of test in s,
test VPI/VCI value, total number of cells transmitted and received
on the given VPI/VCI during the test in positive integers, and the
CRC-ER for the entire test.
The graph results SHOULD display the CRC Error ratio values.
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the CRC-ER for each VCC. There SHOULD
be no more than 10 curves on each graph, one curve indicated and
labeled for each VCC. The integration time per point MUST be
indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
Dunn & Martin Informational [Page 72]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.2.5.10. CRC-ER/Bursty Mixed Load/Three VCC
Objective: To determine the SUT ratio of lost cells on three VCC's in
relation to the total cells sent as defined in RFC 2761 "Terminology
for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with three VCC's. Each VCC
MUST be defined as a different Bearer class; one CBR, one UBR and
one VBR. Each VCC SHOULD contain one VPI/VCI. The VPI/VCI MUST
not be one of the reserved ATM signaling channels (e.g., [0,5],
[0,16]). The PCR, SCR, and MBS must be configured using one of
the specified traffic descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns through the SUT via the defined test VCCs.
Each generated VCC stream MUST match the corresponding VCC Bearer
class. All of the VPI/VCI pairs will generate traffic at the
same traffic rate. Since this test is not a throughput test, the
rate should not be greater than 90% of line rate. The IP PDUs
MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the number of CRC errored cells received per VCC on the
test device.
Reporting Format:
The results of the CRC-ER/Bursty Mixed Load/Three VCC test SHOULD
be reported in in a form of text and graph.
The text results SHOULD display the numerical values of the CRC-
ER. The values given SHOULD include: time period of test in s,
test VPI/VCI value, total number of cells transmitted and received
on the given VPI/VCI during the test in positive integers, and the
CRC-ER for the entire test.
The graph results SHOULD display the CRC Error ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
Dunn & Martin Informational [Page 73]
RFC 3116 Methodology for ATM Benchmarking June 2001
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CRC-ER for each VCC. There should be 12 curves on the
graph, on curve indicated and labeled for each VCC. The
integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.5.11. CRC-ER/Bursty Mixed Load/Twelve VCCs
Objective: To determine the SUT ratio of lost cells on twelve VCCs in
a transmission in relation to the total cells sent as defined in RFC
2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCC's. Each VCC
MUST be defined as one of the Bearer classes for a total of four
CBR, four UBR and four VBR VCC's. Each VCC SHOULD contain one
VPI/VCI. The VPI/VCI MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing one of the
specified bit patterns through the SUT via the defined test VCCs.
Each generated VCC stream MUST match the corresponding VCC Bearer
class. All of the VPI/VCI pairs will generate traffic at the
same traffic rate. Since this test is not a throughput test, the
rate should not be greater than 90% of line rate. The IP PDUs
MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of CRC errored cells received per VCC on the
test device for all VCCs.
Reporting Format:
The results of the CRC-ER/Bursty Mixed Load/Twelve VCCs test
SHOULD be reported in a form of text and graph.
Dunn & Martin Informational [Page 74]
RFC 3116 Methodology for ATM Benchmarking June 2001
The text results SHOULD display the numerical values of the CRC-
ER. The values given SHOULD include: time period of test in s,
test VPI/VCI value, total number of cells transmitted and received
on the given VPI/VCI during the test in positive integers, and the
CRC-ER for the entire test.
The graph results SHOULD display the CRC Error ratio values. The
x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the CRC-ER for each VCC. There should be 12 curves on the
graph, on curve indicated and labeled for each VCC. The
integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.5.12. CRC-ER/Bursty Mixed Load/Maximum VCCs
Objective: To determine the SUT ratio of lost cells with the maximum
number VCCs supported on the SUT in a transmission in relation to the
total cells sent as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. Each VCC MUST be defined as one of the Bearer classes for a
total of (max VCC/3) CBR, (max VCC/3) UBR and (max VCC/3) VBR
VCC's. The VPI/VCI MUST not be one of the reserved ATM signaling
channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing one of the
specified bit patterns through the SUT via the defined test VCCs.
Each generated VCC stream MUST match the corresponding VCC Bearer
class. All of the VPI/VCI pairs will generate traffic at the
same traffic rate. Since this test is not a throughput test, the
rate should not be greater than 90% of line rate. The IP PDUs
MUST be encapsulated in AAL5.
Dunn & Martin Informational [Page 75]
RFC 3116 Methodology for ATM Benchmarking June 2001
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of CRC errored cells received per VCC on the
test device for all VCCs.
Reporting Format:
The results of the CRC-ER/Bursty Mixed Load/Maximum VCCs test
SHOULD be reported in a form of text and graph.
The text results SHOULD display the numerical values of the CRC-
ER. The values given SHOULD include: time period of test in s,
test VPI/VCI value, total number of cells transmitted and received
on the given VPI/VCI during the test in positive integers, and the
CRC-ER for the entire test.
The graph results SHOULD display the CRC Error ratio values.
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the CRC-ER for each VCC. There SHOULD
be no more than 10 curves on each graph, one curve indicated and
labeled for each VCC. The integration time per point MUST be
indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.6. Cell Transfer Delay (CTD)
3.2.6.1. Test Setup
The cell transfer delay measurements assume that both the transmitter
and receiver timestamp information is synchronized. Synchronization
SHOULD be achieved by supplying a common clock signal (minimum of 100
Mhz or 10 ns resolution) to both the transmitter and receiver. The
maximum timestamp values MUST be recorded to ensure synchronization
in the case of counter rollover. The cell transfer delay
measurements SHOULD utilize the O.191 cell (ITUT-O.191) encapsulated
in a valid IP packet. If the O.191 cell is not available, a test
cell encapsulated in a valid IP packet MAY be used. The test cell
Dunn & Martin Informational [Page 76]
RFC 3116 Methodology for ATM Benchmarking June 2001
MUST contain a transmit timestamp which can be correlated with a
receive timestamp. A description of the test cell MUST be included
in the test results. The description MUST include the timestamp
length (in bits), counter rollover value, and the timestamp accuracy
(in ns).
3.2.6.2. CTD/Steady Load/One VCC
Objective: To determine the SUT variation in cell transfer delay with
one VCC as defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as either a CBR,
VBR, or UBR connection. The VPI/VCI MUST not be one of the
reserved ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps at a
specific constant rate through the SUT via the defined test VCC.
Since this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device.
Reporting Format:
The results of the CTD/Steady Load/One VCC test SHOULD be reported
in a form of text, graph, and histogram.
The text results SHOULD display the numerical values of the CTD.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, minimum,
maximum, and mean CTD during the test in us.
The graph results SHOULD display the cell transfer delay values.
The x-coordinate SHOULD be the test run time in either seconds,
Dunn & Martin Informational [Page 77]
RFC 3116 Methodology for ATM Benchmarking June 2001
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the cell transfer delay in us. The integration time per point
MUST be indicated.
The histogram results SHOULD display the cell transfer delay. The
x-coordinate SHOULD be the cell transfer delay in us with at least
256 bins. The y-coordinate SHOULD be the number of cells observed
in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
bearer class of the created VCC MUST also be indicated.
3.2.6.3. CTD/Steady Load/Twelve VCCs
Objective: To determine the SUT variation in cell transfer delay with
twelve VCCs as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC's MUST be configured as either a CBR, VBR,
or UBR connection. The VPI/VCIs MUST not be one of the reserved
ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps at a
specific constant rate through the SUT via the defined test VCCs.
All of the VPI/VCI pairs will generate traffic at the same
traffic rate. Since this test is not a throughput test, the rate
should not be greater than 90% of line rate. The IP PDUs MUST be
encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCCs.
Dunn & Martin Informational [Page 78]
RFC 3116 Methodology for ATM Benchmarking June 2001
Reporting Format:
The results of the CTD/Steady Load/Twelve VCCs test SHOULD be
reported in a form of text, graph, and histograms.
The text results SHOULD display the numerical values of the CTD.
The values given SHOULD include: time period of test in s, test
VPI/VCI values, total number of cells transmitted and received on
each VCC during the test in positive integers, maximum and minimum
CTD on each VCC during the test in us, and mean CTD on each VCC in
us.
The graph results SHOULD display the cell transfer delay values.
The x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the cell transfer delay for each VCC in ms. There SHOULD be 12
curves on the graph, one curves indicated and labeled for each
VCC. The integration time per point MUST be indicated.
The histograms SHOULD display the cell transfer delay. There will
be one histogram for each VCC. The x-coordinate SHOULD be the
cell transfer delay in us with at least 256 bins. The y-
coordinate SHOULD be the number of cells observed in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
bearer class of the created VCC MUST also be indicated.
3.2.6.4. CTD/Steady Load/Maximum VCCs
Objective: To determine the SUT variation in cell transfer delay with
the maximum number VCCs supported on the SUT as defined in RFC 2761
"Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. The VCC's MUST be configured as either a CBR, VBR, or UBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
Dunn & Martin Informational [Page 79]
RFC 3116 Methodology for ATM Benchmarking June 2001
3) Send a specific number of IP packets containing timestamps at a
specific constant rate through the SUT via the defined test VCCs.
All of the VPI/VCI pairs will generate traffic at the same
traffic rate. Since this test is not a throughput test, the rate
should not be greater than 90% of line rate. The IP PDUs MUST be
encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCCs.
Reporting Format:
The results of the CTD/Steady Load/Maximum VCCs test SHOULD be
reported in a form of text, graphs, and histograms.
The text results SHOULD display the numerical values of the CTD.
The values given SHOULD include: time period of test in s, test
VPI/VCI values, total number of cells transmitted and received on
each VCC during the test in positive integers, maximum and minimum
CTD on each VCC during the test in us, and mean CTD on each VCC in
us.
The graph results SHOULD display the cell transfer delay values.
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the cell transfer delay for each VCC in
us. There SHOULD be no more than 10 curves on each graph, one
curve indicated and labeled for each VCC. The integration time
per point MUST be indicated.
The histograms SHOULD display the cell transfer delay. There will
be one histogram for each VCC. The x-coordinate SHOULD be the
cell transfer delay in us with at least 256 bins. The y-
coordinate SHOULD be the number of cells observed in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
bearer class of the created VCC MUST also be indicated.
Dunn & Martin Informational [Page 80]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.2.6.5. CTD/Bursty VBR Load/One VCC
Objective: To determine the SUT variation in cell transfer delay with
one VCC as defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as either a CBR
or VBR connection. The VPI/VCI MUST not be one of the reserved
ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps at a
specific VBR through the SUT via the defined test VCC. Since
this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device.
Reporting Format:
The results of the CTD/Bursty VBR Load/One VCC test SHOULD be
reported in a form of text, graph, and histogram.
The text results SHOULD display the numerical values of the CTD.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, minimum,
maximum, and mean CTD during the test in us.
The graph results SHOULD display the cell transfer delay values.
The x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the cell transfer delay in us. The integration time per point
MUST be indicated.
Dunn & Martin Informational [Page 81]
RFC 3116 Methodology for ATM Benchmarking June 2001
The histogram results SHOULD display the cell transfer delay. The
x-coordinate SHOULD be the cell transfer delay in us with at least
256 bins. The y-coordinate SHOULD be the number of cells observed
in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.6.6. CTD/Bursty VBR Load/Twelve VCCs
Objective: To determine the SUT variation in cell transfer delay with
twelve VCCs as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC's MUST be configured as either a CBR or VBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps at a
specific VBR through the SUT via the defined test VCCs. All of
the VPI/VCI pairs will generate traffic at the same traffic rate.
Since this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCCs.
Reporting Format:
The results of the CTD/Bursty VBR Load/Twelve VCCs test SHOULD be
reported in a form of text, graph, and histograms.
Dunn & Martin Informational [Page 82]
RFC 3116 Methodology for ATM Benchmarking June 2001
The text results SHOULD display the numerical values of the CTD.
The values given SHOULD include: time period of test in s, test
VPI/VCI values, total number of cells transmitted and received on
each VCC during the test in positive integers, maximum and minimum
CTD on each VCC during the test in us, and mean CTD on each VCC in
us.
The graph results SHOULD display the cell transfer delay values.
The x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the cell transfer delay for each VCC in ms. There SHOULD be 12
curves on the graph, one curves indicated and labeled for each
VCC. The integration time per point MUST be indicated.
The histograms SHOULD display the cell transfer delay. There will
be one histogram for each VCC. The x-coordinate SHOULD be the
cell transfer delay in us with at least 256 bins. The y-
coordinate SHOULD be the number of cells observed in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.6.7. CTD/Bursty VBR Load/Maximum VCCs
Objective: To determine the SUT variation in cell transfer delay with
the maximum number VCCs supported on the SUT as defined in RFC 2761
"Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. The VCC's MUST be configured as either a CBR or VBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps at a
specific VBR through the SUT via the defined test VCCs. All of
the VPI/VCI pairs will generate traffic at the same traffic rate.
Since this test is not a throughput test, the rate should not be
Dunn & Martin Informational [Page 83]
RFC 3116 Methodology for ATM Benchmarking June 2001
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCCs.
Reporting Format:
The results of the CTD/Bursty VBR Load/Maximum VCCs test SHOULD be
reported in a form of text, graphs, and histograms.
The text results SHOULD display the numerical values of the CTD.
The values given SHOULD include: time period of test in s, test
VPI/VCI values, total number of cells transmitted and received on
each VCC during the test in positive integers, maximum and minimum
CTD on each VCC during the test in us, and mean CTD on each VCC in
us.
The graph results SHOULD display the cell transfer delay values.
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the cell transfer delay for each VCC in
us. There SHOULD be no more than 10 curves on each graph, one
curve indicated and labeled for each VCC. The integration time
per point MUST be indicated.
The histograms SHOULD display the cell transfer delay. There will
be one histogram for each VCC. The x-coordinate SHOULD be the
cell transfer delay in us with at least 256 bins. The y-
coordinate SHOULD be the number of cells observed in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
Dunn & Martin Informational [Page 84]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.2.6.8. CTD/Bursty UBR Load/One VCC
Objective: To determine the SUT variation in cell transfer delay with
one VCC as defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as a UBR
connection. The VPI/VCI MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps at a
specific UBR through the SUT via the defined test VCC. Since
this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device.
Reporting Format:
The results of the CTD/Bursty UBR Load/One VCC test SHOULD be
reported in a form of text, graph, and histogram.
The text results SHOULD display the numerical values of the CTD.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, minimum,
maximum, and mean CTD during the test in us.
The graph results SHOULD display the cell transfer delay values.
The x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the cell transfer delay in us. The integration time per point
MUST be indicated.
Dunn & Martin Informational [Page 85]
RFC 3116 Methodology for ATM Benchmarking June 2001
The histogram results SHOULD display the cell transfer delay. The
x-coordinate SHOULD be the cell transfer delay in us with at least
256 bins. The y-coordinate SHOULD be the number of cells observed
in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
bearer class of the created VCC MUST also be indicated.
3.2.6.9. CTD/Bursty UBR Load/Twelve VCCs
Objective: To determine the SUT variation in cell transfer delay with
twelve VCCs as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC's MUST be configured as a UBR connection.
The VPI/VCIs MUST not be one of the reserved ATM signaling
channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps at a
specific UBR through the SUT via the defined test VCCs. All of
the VPI/VCI pairs will generate traffic at the same traffic rate.
Since this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCCs.
Reporting Format:
The results of the CTD/Bursty UBR Load/Twelve VCCs test SHOULD be
reported in a form of text, graph, and histograms.
The text results SHOULD display the numerical values of the CTD.
The values given SHOULD include: time period of test in s, test
Dunn & Martin Informational [Page 86]
RFC 3116 Methodology for ATM Benchmarking June 2001
VPI/VCI values, total number of cells transmitted and received on
each VCC during the test in positive integers, maximum and minimum
CTD on each VCC during the test in us, and mean CTD on each VCC in
us.
The graph results SHOULD display the cell transfer delay values.
The x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the cell transfer delay for each VCC in ms. There SHOULD be 12
curves on the graph, one curves indicated and labeled for each
VCC. The integration time per point MUST be indicated.
The histograms SHOULD display the cell transfer delay. There will
be one histogram for each VCC. The x-coordinate SHOULD be the
cell transfer delay in us with at least 256 bins. The y-
coordinate SHOULD be the number of cells observed in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
bearer class of the created VCC MUST also be indicated.
3.2.6.10. CTD/Bursty UBR Load/Maximum VCCs
Objective: To determine the SUT variation in cell transfer delay with
the maximum number VCCs supported on the SUT as defined in RFC 2761
"Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. The VCC MUST be configured as a UBR connection. The
VPI/VCIs MUST not be one of the reserved ATM signaling channels
(e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps at a
specific UBR through the SUT via the defined test VCCs. All of
the VPI/VCI pairs will generate traffic at the same traffic rate.
Since this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
Dunn & Martin Informational [Page 87]
RFC 3116 Methodology for ATM Benchmarking June 2001
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCCs.
Reporting Format:
The results of the CTD/Bursty UBR Load/Maximum VCCs test SHOULD be
reported in a form of text, graphs, and histograms.
The text results SHOULD display the numerical values of the CTD.
The values given SHOULD include: time period of test in s, test
VPI/VCI values, total number of cells transmitted and received on
each VCC during the test in positive integers, maximum and minimum
CTD on each VCC during the test in us, and mean CTD on each VCC in
us.
The graph results SHOULD display the cell transfer delay values.
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the cell transfer delay for each VCC in
us. There SHOULD be no more than 10 curves on each graph, one
curve indicated and labeled for each VCC. The integration time
per point MUST be indicated.
The histograms SHOULD display the cell transfer delay. There will
be one histogram for each VCC. The x-coordinate SHOULD be the
cell transfer delay in us with at least 256 bins. The y-
coordinate SHOULD be the number of cells observed in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
bearer class of the created VCC MUST also be indicated.
3.2.6.11. CTD/Mixed Load/Three VCC's
Objective: To determine the SUT variation in cell transfer delay with
three VCC's as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Dunn & Martin Informational [Page 88]
RFC 3116 Methodology for ATM Benchmarking June 2001
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with three VCC's. Each VCC
MUST be defined as a different Bearer class: one CBR, one UBR and
one VBR. Each VCC SHOULD contain one VPI/VCI. The VPI/VCI MUST
not be one of the reserved ATM signaling channels (e.g., [0,5],
[0,16]).
3) Send a specific number of IP packets containing timestamps
through the SUT via the defined test VCCs. Each generated VCC
stream MUST match the corresponding VCC Bearer class. All of the
VPI/VCI pairs will generate traffic at the same traffic rate.
Since this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCC's.
Reporting Format:
The results of the CTD/Mixed Load/Three VCC test SHOULD be
reported in a form of text, graph, and histogram.
The text results SHOULD display the numerical values of the CTD.
The values given SHOULD include: time period of test in s, test
VPI/VCI value, total number of cells transmitted and received on
the given VPI/VCI during the test in positive integers, minimum,
maximum, and mean CTD during the test in us.
The graph results SHOULD display the cell transfer delay values.
The x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the cell transfer delay in us. The integration time per point
MUST be indicated.
Dunn & Martin Informational [Page 89]
RFC 3116 Methodology for ATM Benchmarking June 2001
The histogram results SHOULD display the cell transfer delay. The
x-coordinate SHOULD be the cell transfer delay in us with at least
256 bins. The y-coordinate SHOULD be the number of cells observed
in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.6.12. CTD/Mixed Load/Twelve VCCs
Objective: To determine the SUT variation in cell transfer delay with
twelve VCCs as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCC's. Each VCC
MUST be defined as one of the Bearer classes for a total of four
CBR, four UBR and four VBR VCC's. Each VCC SHOULD contain one
VPI/VCI. The VPI/VCI MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing timestamps
through the SUT via the defined test VCCs. Each generated VCC
stream MUST match the corresponding VCC Bearer class. All of the
VPI/VCI pairs will generate traffic at the same traffic rate.
Since this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCCs.
Reporting Format:
The results of the CTD/Mixed Load/Twelve VCCs test SHOULD be
reported in a form of text, graph, and histograms.
Dunn & Martin Informational [Page 90]
RFC 3116 Methodology for ATM Benchmarking June 2001
The text results SHOULD display the numerical values of the CTD.
The values given SHOULD include: time period of test in s, test
VPI/VCI values, total number of cells transmitted and received on
each VCC during the test in positive integers, maximum and minimum
CTD on each VCC during the test in us, and mean CTD on each VCC in
us.
The graph results SHOULD display the cell transfer delay values.
The x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the cell transfer delay for each VCC in ms. There SHOULD be 12
curves on the graph, one curves indicated and labeled for each
VCC. The integration time per point MUST be indicated.
The histograms SHOULD display the cell transfer delay. There will
be one histogram for each VCC. The x-coordinate SHOULD be the
cell transfer delay in us with at least 256 bins. The y-
coordinate SHOULD be the number of cells observed in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
3.2.6.13. CTD/Mixed Load/Maximum VCCs
Objective: To determine the SUT variation in cell transfer delay with
the maximum number VCCs supported on the SUT as defined in RFC 2761
"Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. Each VCC MUST be defined as one of the Bearer classes for a
total of (max VCC/3) CBR, (max VCC/3) UBR and (max VCC/3) VBR
VCC's. If the maximum number of VCC's is not divisible by 3, the
total for each bearer class MUST be within 3 VCC's of each other.
The VPI/VCI MUST not be one of the reserved ATM signaling
channels (e.g., [0,5], [0,16]).
Dunn & Martin Informational [Page 91]
RFC 3116 Methodology for ATM Benchmarking June 2001
3) Send a specific number of IP packets containing timestamps
through the SUT via the defined test VCCs. Each generated VCC
stream MUST match the corresponding VCC Bearer class. All of the
VPI/VCI pairs will generate traffic at the same traffic rate.
Since this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the packets timestamps at the transmitter and receiver
ends of the test device for all VCCs.
Reporting Format:
The results of the CTD/Mixed Load/Maximum VCCs test SHOULD be
reported in a form of text, graphs, and histograms.
The text results SHOULD display the numerical values of the CTD.
The values given SHOULD include: time period of test in s, test
VPI/VCI values, total number of cells transmitted and received on
each VCC during the test in positive integers, maximum and minimum
CTD on each VCC during the test in us, and mean CTD on each VCC in
us.
The graph results SHOULD display the cell transfer delay values.
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the cell transfer delay for each VCC in
us. There SHOULD be no more than 10 curves on each graph, one
curve indicated and labeled for each VCC. The integration time
per point MUST be indicated.
The histograms SHOULD display the cell transfer delay. There will
be one histogram for each VCC. The x-coordinate SHOULD be the
cell transfer delay in us with at least 256 bins. The y-
coordinate SHOULD be the number of cells observed in each bin.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST also be indicated.
Dunn & Martin Informational [Page 92]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.3. ATM Adaptation Layer (AAL) Type 5 (AAL5)
3.3.1. IP Packet Loss due to AAL5 Re-assembly Errors
Objective: To determine if the SUT will drop IP packets due AAL5 Re-
assembly Errors as defined in RFC 2761 "Terminology for ATM
Benchmarking".
Procedure:
1) Set up the SUT and test device using the uni-directional
configuration.
2) Send a specific number of cells at a specific rate through the
SUT. Since this test is not a throughput test, the rate should
not be greater than 90% of line rate. The cell payload SHOULD
contain valid IP PDUs. The IP PDUs MUST be encapsulated in AAL5.
3) Count the cells that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
4) Inject one error in the first bit of the AAL5 payload. Verify
that the SUT does not drop any AAL5 PDU's.
5) Discontinue the AAL5 payload error.
6) Inject one error in the first bit of the AAL5 header for 4
consecutive IP PDUs in every 6 IP PDUs. Verify that the SUT does
drop the AAL5 PDU's.
7) Discontinue the AAL5 payload error.
Reporting Format:
The results of the AAL5 PDU Loss due to AAL5 PDU errors test
SHOULD be reported in a form of a table. The rows SHOULD be
labeled single error, one error per second, and four consecutive
errors every 6 IP PDUs. The columns SHOULD be labeled AAL5 PDU
loss and number of PDU's lost. The elements of column 1 SHOULD be
either True or False, indicating whether the particular condition
was observed for each test. The elements of column 2 SHOULD be
non-negative integers.
The table MUST also indicate the traffic rate in IP PDUs per
second as generated by the test device.
Dunn & Martin Informational [Page 93]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.3.2. AAL5 Reassembly Time.
Objective: To determine the SUT AAL5 Reassembly Time as defined in
RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the uni-directional
configuration.
2) Send a specific number of IP packets at a specific rate through
the SUT. Since this test is not a throughput test, the rate
should not be greater than 90% of line rate. The IP PDUs MUST be
encapsulated in AAL5. The AAL5 PDU size is 65535 octets or 1365
ATM cells.
3) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
4) Given an AAL5 reassembly timer of 'x' seconds, where 'x' is the
actual value of the AAL5 reassembly timer on the SUT, sent
traffic at 1365 cells per 'x' seconds. The expected results are
that no AAL5 PDU's will be dropped.
5) Send traffic at 1360 cells per 'x' seconds. The expected results
are that all AAL5 PDU's will be dropped.
Reporting Format:
The results of the IP packet loss due to AAL5 reassembly timeout
test SHOULD be reported in a form of a table. The rows SHOULD be
labeled 1365 cells per 'x' seconds and 1360 cells per 'x' seconds.
The columns SHOULD be labeled packet loss and number of packets
lost. The elements of column 1 SHOULD be either True or False,
indicating whether the particular condition was observed for each
test. The elements of column 2 SHOULD be non-negative integers.
The table MUST also indicate the packet size in octets and traffic
rate in packets per second as generated by the test device,
including the value of
Dunn & Martin Informational [Page 94]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.3.3. AAL5 CRC Error Ratio.
3.3.3.1. Test Setup
The AAL5 CRC error ratio measurements assume that both the
transmitter and receiver payload information is synchronized.
Synchronization MUST be achieved by supplying a known bit pattern to
both the transmitter and receiver. If this bit pattern is longer
than the packet size, the receiver MUST synchronize with the
transmitter before tests can be run.
3.3.3.2. AAL5-CRC-ER/Steady Load/One VCC
Objective: To determine the SUT ratio of AAL5 CRC PDU errors on one
VCC in a transmission in relation to the total AAL5 PDU's sent as
defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as either a CBR,
VBR, or UBR connection. The VPI/VCI MUST not be one of the
reserved ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing one of the
specified bit patterns at a constant rate through the SUT via the
defined test VCC. Since this test is not a throughput test, the
rate should not be greater than 90% of line rate. The IP PDUs
MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the number of AAL5 CRC errors at the receiver end of the
test device.
Reporting Format:
The results of the AAL5-CRC-ER/Steady Load/One VCC test SHOULD be
reported in a form of text and graph.
Dunn & Martin Informational [Page 95]
RFC 3116 Methodology for ATM Benchmarking June 2001
The text results SHOULD display the numerical values of the AAL5-
CRC-ER. The values given SHOULD include: time period of test in
s, test VPI/VCI value, total number of AAL5 PDU's transmitted and
received on the given VPI/VCI during the test in positive
integers, and the AAL5-CRC-ER for the entire test.
The graph results SHOULD display the AAL5 CRC error ratio values.
The x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the AAL5-CRC-ER. The integration time per point MUST be
indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
3.3.3.3. AAL5-CRC-ER/Steady Load/Twelve VCCs
Objective: To determine the SUT ratio of AAL5 CRC PDU errors on
twelve VCC's in a transmission in relation to the total AAL5 PDU's
sent as defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC's MUST be configured as either a CBR, VBR,
or UBR connection. The VPI/VCIs MUST not be one of the reserved
ATM signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing one of the
specified bit patterns at a constant rate through the SUT via the
defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate.
Since this test is not a throughput test, the rate should not be
greater than 90% of line rate. The IP PDUs MUST be encapsulated
in AAL5.
Dunn & Martin Informational [Page 96]
RFC 3116 Methodology for ATM Benchmarking June 2001
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of AAL5 CRC errors at the receiver end of the
test device for all VCCs.
Reporting Format:
The results of the AAL5-CRC-ER/Steady Load/Twelve VCCs test SHOULD
be reported in a form of text and graph.
The text results SHOULD display the numerical values of the AAL5-
CRC-ER. The values given SHOULD include: time period of test in
s, test VPI/VCI value, total number of AAL5 PDU's transmitted and
received on the given VPI/VCI during the test in positive
integers, and the AAL5-CRC-ER for the entire test.
The graph results SHOULD display the AAL5 CRC error ratio values.
The x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the AAL5-CRC-ER for each VCC. There should be 12 curves on the
graph, on curve indicated and labeled for each VCC. The
integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
3.3.3.4. AAL5-CRC-ER/Steady Load/Maximum VCCs
Objective: To determine the SUT ratio of AAL5 CRC PDU errors with the
maximum number VCCs supported on the SUT in a transmission in
relation to the total AAL5 PDU's sent as defined in RFC 2761
"Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
Dunn & Martin Informational [Page 97]
RFC 3116 Methodology for ATM Benchmarking June 2001
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. The VCC's MUST be configured as either a CBR, VBR, or UBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing one of the
specified bit patterns at a constant rate through the SUT via the
defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of AAL5 CRC errors at the receiver end of the
test device for all VCCs.
Reporting Format:
The results of the AAL5-CRC-ER/Steady Load/Maximum VCCs test
SHOULD be reported in a form of text and graph.
The text results SHOULD display the numerical values of the AAL5-
CRC-ER. The values given SHOULD include: time period of test in
s, test VPI/VCI value, total number of AAL5 PDU's transmitted and
received on the given VPI/VCI during the test in positive
integers, and the AAL5-CRC-ER for the entire test.
The graph results SHOULD display the AAL5 CRC error ratio values.
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the AAL5-CRC-ER for each VCC. There
SHOULD be no more than 10 curves on each graph, one curve
indicated and labeled for each VCC. The integration time per
point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
Dunn & Martin Informational [Page 98]
RFC 3116 Methodology for ATM Benchmarking June 2001
3.3.3.5. AAL5-CRC-ER/Bursty VBR Load/One VCC
Objective: To determine the SUT ratio of AAL5 CRC PDU errors on one
VCC in a transmission in relation to the total AAL5 PDU's sent as
defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with one VCC. The VCC SHOULD
contain one VPI/VCI. The VCC MUST be configured as either a CBR
or VBR connection. The VPI/VCI MUST not be one of the reserved
ATM signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and
MBS must be configured using one of the specified traffic
descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific VBR rate through the SUT via
the defined test VCC. Since this test is not a throughput test,
the rate should not be greater than 90% of line rate. The IP
PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the number of AAL5 CRC errors at the receiver end of the
test device.
Reporting Format:
The results of the AAL5-CRC-ER/Bursty VBR Load/One VCC test SHOULD
be reported in a form of text and graph.
The text results SHOULD display the numerical values of the AAL5-
CRC-ER. The values given SHOULD include: time period of test in
s, test VPI/VCI value, total number of AAL5 PDU's transmitted and
received on the given VPI/VCI during the test in positive
integers, and the AAL5-CRC-ER for the entire test.
The graph results SHOULD display the AAL5 CRC error ratio values.
The x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
Dunn & Martin Informational [Page 99]
RFC 3116 Methodology for ATM Benchmarking June 2001
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the AAL5-CRC-ER. The integration time per point MUST be
indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
3.3.3.6. AAL5-CRC-ER/Bursty VBR Load/Twelve VCCs
Objective: To determine the SUT ratio of AAL5 CRC PDU errors on
twelve VCC's in a transmission in relation to the total AAL5 PDU's
sent as defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCCs, using 1 VPI
and 12 VCIs. The VCC's MUST be configured as either a CBR or VBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and MBS
must be configured using one of the specified traffic
descriptors.
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific VBR rate through the SUT via
the defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The PCR, SCR, and MBS must be indicated. The IP PDUs MUST
be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of AAL5 CRC errors at the receiver end of the
test device for all VCCs.
Dunn & Martin Informational [Page 100]
RFC 3116 Methodology for ATM Benchmarking June 2001
Reporting Format:
The results of the AAL5-CRC-ER/Bursty VBR Load/Twelve VCCs test
SHOULD be reported in a form of text and graph.
The text results SHOULD display the numerical values of the AAL5-
CRC-ER. The values given SHOULD include: time period of test in
s, test VPI/VCI value, total number of AAL5 PDU's transmitted and
received on the given VPI/VCI during the test in positive
integers, and the AAL5-CRC-ER for the entire test.
The graph results SHOULD display the AAL5 CRC error ratio values.
The x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the AAL5-CRC-ER for each VCC. There should be 12 curves on the
graph, on curve indicated and labeled for each VCC. The
integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
3.3.3.7. AAL5-CRC-ER/Bursty VBR Load/Maximum VCCs
Objective: To determine the SUT ratio of AAL5 CRC PDU errors with the
maximum number VCCs supported on the SUT in a transmission in
relation to the total AAL5 PDU's sent as defined in RFC 2761
"Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with the maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. The VCC's MUST be configured as either a CBR or VBR
connection. The VPI/VCIs MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]). The PCR, SCR, and MBS
must be configured using one of the specified traffic
descriptors.
Dunn & Martin Informational [Page 101]
RFC 3116 Methodology for ATM Benchmarking June 2001
3) Send a specific number of IP packets containing one of the
specified bit patterns at a specific VBR rate through the SUT via
the defined test VCCs. All of the VPI/VCI pairs will generate
traffic at the same traffic rate. Since this test is not a
throughput test, the rate should not be greater than 90% of line
rate. The IP PDUs MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of AAL5 CRC errors at the receiver end of the
test device for all VCCs.
Reporting Format:
The results of the AAL5-CRC-ER/Bursty VBR Load/Maximum VCCs test
SHOULD be reported in a form of text and graph.
The text results SHOULD display the numerical values of the AAL5-
CRC-ER. The values given SHOULD include: time period of test in
s, test VPI/VCI value, total number of AAL5 PDU's transmitted and
received on the given VPI/VCI during the test in positive
integers, and the AAL5-CRC-ER for the entire test.
The graph results SHOULD display the AAL5 CRC error ratio values.
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the AAL5-CRC-ER for each VCC. There
SHOULD be no more than 10 curves on each graph, one curve
indicated and labeled for each VCC. The integration time per
point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
3.3.3.8. AAL5-CRC-ER/Mixed Load/Three VCC's
Objective: To determine the SUT ratio of AAL5 CRC PDU errors on three
VCC's in a transmission in relation to the total AAL5 PDU's sent as
defined in RFC 2761 "Terminology for ATM Benchmarking".
Dunn & Martin Informational [Page 102]
RFC 3116 Methodology for ATM Benchmarking June 2001
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with three VCC's. Each VCC
MUST be defined as a different Bearer class; one CBR, one UBR and
one VBR. Each VCC SHOULD contain one VPI/VCI. The VPI/VCI MUST
not be one of the reserved ATM signaling channels (e.g., [0,5],
[0,16]).
3) Send a specific number of IP packets containing one of the
specified bit patterns through the SUT via the defined test VCCs.
Each generated VCC stream MUST match the corresponding VCC Bearer
class. All of the VPI/VCI pairs will generate traffic at the
same traffic rate. Since this test is not a throughput test, the
rate should not be greater than 90% of line rate. The IP PDUs
MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT to verify
connectivity and load. If the count on the test device is the
same on the SUT, continue the test; else lower the test device
traffic rate until the counts are the same.
5) Record the number of AAL5 CRC errors at the receiver end of the
test device for all VCCs.
Reporting Format:
The results of the AAL5-CRC-ER/Bursty Mixed Load/Three VCCs test
SHOULD be reported in a form of text and graph.
The text results SHOULD display the numerical values of the AAL5-
CRC-ER. The values given SHOULD include: time period of test in
s, test VPI/VCI value, total number of AAL5 PDU's transmitted and
received on the given VPI/VCI during the test in positive
integers, and the AAL5-CRC-ER for the entire test.
The graph results SHOULD display the AAL5 CRC error ratio values.
The x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the AAL5-CRC-ER for each VCC. There should be 12 curves on the
graph, on curve indicated and labeled for each VCC. The
integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
Dunn & Martin Informational [Page 103]
RFC 3116 Methodology for ATM Benchmarking June 2001
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
3.3.3.9. AAL5-CRC-ER/Mixed Load/Twelve VCCs
Objective: To determine the SUT ratio of AAL5 CRC PDU errors on
twelve VCC's in a transmission in relation to the total AAL5 PDU's
sent as defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with twelve VCC's. Each VCC
MUST be defined as one of the Bearer classes for a total of four
CBR, four UBR and four VBR VCC's. Each VCC SHOULD contain one
VPI/VCI. The VPI/VCI MUST not be one of the reserved ATM
signaling channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing one of the
specified bit patterns through the SUT via the defined test VCCs.
Each generated VCC stream MUST match the corresponding VCC Bearer
class. All of the VPI/VCI pairs will generate traffic at the
same traffic rate. Since this test is not a throughput test, the
rate should not be greater than 90% of line rate. The IP PDUs
MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
5) Record the number of AAL5 CRC errors at the receiver end of the
test device for all VCCs.
Reporting Format:
The results of the AAL5-CRC-ER/Bursty Mixed Load/Twelve VCCs test
SHOULD be reported in a form of text and graph.
The text results SHOULD display the numerical values of the AAL5-
CRC-ER. The values given SHOULD include: time period of test in
s, test VPI/VCI value, total number of AAL5 PDU's transmitted and
received on the given VPI/VCI during the test in positive
integers, and the AAL5-CRC-ER for the entire test.
Dunn & Martin Informational [Page 104]
RFC 3116 Methodology for ATM Benchmarking June 2001
The graph results SHOULD display the AAL5 CRC error ratio values.
The x-coordinate SHOULD be the test run time in either seconds,
minutes or days depending on the total length of the test. The
x-coordinate time SHOULD be configurable. The y-coordinate SHOULD
be the AAL5-CRC-ER for each VCC. There should be 12 curves on the
graph, on curve indicated and labeled for each VCC. The
integration time per point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
3.3.3.10. AAL5-CRC-ER/Mixed Load/Maximum VCCs
Objective: To determine the SUT ratio of AAL5 CRC PDU errors with the
maximum number VCCs supported on the SUT in a transmission in
relation to the total AAL5 PDU's sent as defined in RFC 2761
"Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Configure the SUT and test device with maximum number of VCCs
supported on the SUT. For example, if the maximum number of VCCs
supported on the SUT is 1024, define 256 VPIs with 4 VCIs per
VPI. Each VCC MUST be defined as one of the Bearer classes for a
total of (max VCC/3) CBR, (max VCC/3) UBR and (max VCC/3) VBR
VCC's. The VPI/VCI MUST not be one of the reserved ATM signaling
channels (e.g., [0,5], [0,16]).
3) Send a specific number of IP packets containing one of the
specified bit patterns through the SUT via the defined test VCCs.
Each generated VCC stream MUST match the corresponding VCC Bearer
class. All of the VPI/VCI pairs will generate traffic at the
same traffic rate. Since this test is not a throughput test, the
rate should not be greater than 90% of line rate. The IP PDUs
MUST be encapsulated in AAL5.
4) Count the IP packets that are transmitted by the SUT on all VCCs
to verify connectivity and load. If the count on the test device
is the same on the SUT, continue the test; else lower the test
device traffic rate until the counts are the same.
Dunn & Martin Informational [Page 105]
RFC 3116 Methodology for ATM Benchmarking June 2001
5) Record the number of AAL5 CRC errors at the receiver end of the
test device for all VCCs.
Reporting Format:
The results of the AAL5-CRC-ER/Bursty Mixed Load/Maximum VCCs test
SHOULD be reported in a form of text and graph.
The text results SHOULD display the numerical values of the AAL5-
CRC-ER. The values given SHOULD include: time period of test in
s, test VPI/VCI value, total number of AAL5 PDU's transmitted and
received on the given VPI/VCI during the test in positive
integers, and the AAL5-CRC-ER for the entire test.
The graph results SHOULD display the AAL5 CRC error ratio values.
There will be (Max number of VCCs/10) graphs, with 10 VCCs
indicated on each graph. The x-coordinate SHOULD be the test run
time in either seconds, minutes or days depending on the total
length of the test. The x-coordinate time SHOULD be configurable.
The y-coordinate SHOULD be the AAL5-CRC-ER for each VCC. There
SHOULD be no more than 10 curves on each graph, one curve
indicated and labeled for each VCC. The integration time per
point MUST be indicated.
The results MUST also indicate the packet size in octets, traffic
rate in packets per second, and bearer class as generated by the
test device. The VCC and VPI/VCI values MUST be indicated. The
PCR, SCR, and MBS MUST be indicated. The bearer class of the
created VCC MUST be indicated. The generated bit pattern MUST
also be indicated.
3.4. ATM Service: Signaling
3.4.1. CAC Denial Time and Connection Establishment Time
Objective: To determine the CAC rejection time and Connection
Establishment Time on the SUT as defined in RFC 2761 "Terminology for
ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Create a UNI signaling setup message, as described in Appendix C,
specifying a PCR which will not allow CAC to reject the call.
Dunn & Martin Informational [Page 106]
RFC 3116 Methodology for ATM Benchmarking June 2001
3) Send the UNI signaling setup message. Note the time the setup
message was sent. Verify that the SVC has been setup with the
correct parameters. Note the time the connect message was
received
4) Create a UNI signaling setup message, as described in Appendix C,
specifying a PCR which will allow CAC to reject the call.
5) Send the UNI signaling setup message. Note the time the setup
message was sent. Verify that the SVC has been rejected with the
correct cause code. Note the time the release complete message
was received.
6) Compute the rejection time as the difference between the time the
release complete message was received and the time setup message
was send.
Reporting Format:
The results of the CAC Denial Time and Connection Establishment
Time tests SHOULD be reported in a form of a table. The rows
SHOULD be labeled call accepted and call rejected. The columns
SHOULD be labeled time setup sent, time response received, and
correct response. The elements of the columns 1 and 2 SHOULD be
in seconds. The elements of column 3 SHOULD be be either True or
False, indicating whether the particular condition was observed
for each test.
The table MUST also indicate the packet size in octets and traffic
rate in packets per second as generated by the test device.
3.4.2. Connection Teardown Time
Objective: To determine the Connection Teardown Time on the SUT as
defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Create a UNI signaling setup message, as described in Appendix C,
specifying a PCR which will not allow CAC to reject the call.
3) Send the UNI signaling setup message. Note the time the setup
message was sent. Verify that the SVC has been setup with the
correct parameters. Note the time the connect message was
received
Dunn & Martin Informational [Page 107]
RFC 3116 Methodology for ATM Benchmarking June 2001
4) Create a UNI signaling release message, as described in Appendix
C, specifying a cause code of normal call clearing.
5) Send the UNI signaling release message. Note the time the
release message was sent. Verify that the SVC has been
terminated with the correct cause code. Note the time the
release complete message was received.
6) Compute the release time as the difference between the time the
release complete message was received and the time release
message was send.
Reporting Format:
The results of the Connection Teardown Time tests SHOULD be
reported in a form of a table. The rows SHOULD be labeled call
accepted and call released. The columns SHOULD be labeled time
message sent, time response received, and correct response. The
elements of the columns 1 and 2 SHOULD be in seconds. The
elements of column 3 SHOULD be be either True or False, indicating
whether the particular condition was observed for each test.
The table MUST also indicate the packet size in octets and traffic
rate in packets per second as generated by the test device.
3.4.3. Crankback Time
Objective: To determine the Crankback Time on the SUT as defined in
RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the uni-directional
passthrough configuration.
2) Create a PNNI signaling setup message, as described in Appendix
C, specifying a DTL which is not blocked by the far end SUT.
3) Send the PNNI signaling setup message. Note the time the setup
message was sent. Verify that the connect message has been
received by the near-end switch. Note the time the connect
message was received
4) Create a PNNI signaling setup message, as described in Appendix
C, specifying a DTL which is blocked by the far end SUT.
5) Send the PNNI signaling release message. Note the time the
release message was sent. Note the time the release complete
Dunn & Martin Informational [Page 108]
RFC 3116 Methodology for ATM Benchmarking June 2001
message was received. Note the time the near-end switch sends
it's own PNNI setup message (referred to as the near-end setup
message) specifying the non- blocked DTL.
6) Compute the crankback time as the difference between the time the
near-end setup message was received and the time release message
was send.
Reporting Format:
The results of the Crankback Time tests SHOULD be reported in a
form of a table. The rows SHOULD be labeled DTL call accepted and
call released. The columns SHOULD be labeled time message sent,
time response received, and correct response. The elements of the
columns 1 and 2 SHOULD be in seconds. The elements of column 3
SHOULD be be either True or False, indicating whether the
particular condition was observed for each test.
The table MUST also indicate the packet size in octets and traffic
rate in packets per second as generated by the test device.
3.4.4. Route Update Response Time
Objective: To determine the Route Update Response Time on the SUT as
defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the uni-directional
passthrough configuration.
2) Create a PNNI PTSE as described in Appendix C, specifying a
routing topology. Verify that the routing tables on the far-end
and near-end switches are empty.
3) Send the PTSE message to the far-end switch. Note the time the
PTSE message was sent. Verify that the PTSE message has been
received by the far-end switch. Note the time the PTSE message
was received.
4) Create another PNNI PTSE as described in Appendix C, specifying a
change in the routing topology. Verify that the routing tables
on the far-end and near-end switches contain the previous PTSE
routes.
5) Send the PTSE message to the far-end switch. Note the time the
PTSE message was sent. Verify that the PTSE message has been
received by the far-end switch. Note the time the PTSE message
Dunn & Martin Informational [Page 109]
RFC 3116 Methodology for ATM Benchmarking June 2001
was received. Note the time the PTSE was sent to the near-end
switch. Note the time the PTSE message was received on the
near-end switch.
6) Compute the Route Update Response time as the difference between
the time the far-end PTSE message was sent and the time far-end
PTSE message was received by the near-end.
Reporting Format:
The results of the Route Update Response Time tests SHOULD be
reported in a form of a table. The rows SHOULD be labeled PTSE
call accepted, far-end PTSE message send, and near-end message
received. The columns SHOULD be labeled time message sent, time
response received, and correct response. The elements of the
columns 1 and 2 SHOULD be in seconds. The elements of column 3
SHOULD be be either True or False, indicating whether the
particular condition was observed for each test.
The table MUST also indicate the packet size in octets and traffic
rate in packets per second as generated by the test device.
3.5. ATM Service: ILMI
3.5.1. MIB Alignment Time
Objective: To determine the MIB Alignment Time on the SUT as defined
in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Send a Cold Start message to the SUT. Note the time the message
was sent to the SUT. Verify that the Cold Start message has been
received by the SUT. Note the time the message was received.
3) Send a Get Request message to the SUT. Note the time the message
was sent to the SUT. Verify that the Get Request message has
been received by the SUT. Note the time the message was
received.
4) After all MIB elements are exchanged, verify that the final Get
Request message has been received by the SUT. Note the time the
message was send and received by the SUT.
Dunn & Martin Informational [Page 110]
RFC 3116 Methodology for ATM Benchmarking June 2001
5) Compute the MIB Alignment Time as the difference between the time
the Cold Start message was sent and the time the final Get
Request was received by the SUT.
Reporting Format:
The results of the MIB Alignment Time tests SHOULD be reported in
a form of a table. The rows SHOULD be labeled Cold Start Send,
Cold Start accepted, Final Get Request send, and Final Get Request
received. The columns SHOULD be labeled time message sent, time
response received, and correct response. The elements of the
columns 1 and 2 SHOULD be in seconds. The elements of column 3
SHOULD be be either True or False, indicating whether the
particular condition was observed for each test.
The table MUST also indicate the packet size in octets and traffic
rate in packets per second as generated by the test device.
3.5.2. Address Registration Time
Objective: To determine the Address Registration Time on the SUT as
defined in RFC 2761 "Terminology for ATM Benchmarking".
Procedure:
1) Set up the SUT and test device using the bi-directional
configuration.
2) Send a Set Request message to the SUT. Note the time the message
was sent to the SUT. Verify that the Set Request message has
been received by the SUT. Note the time the message was
received.
3) Send a Get Request message to the SUT. Note the time the message
was sent to the SUT. Verify that the Get Request message has
been received by the SUT. Note the time the message was
received.
4) After all MIB elements are exchanged, verify that the final Get
Request message has been received by the SUT. Note the time the
message was send and received by the SUT.
5) Compute the Address Registration Time as the difference between
the time the Set Request message was sent and the time the final
Get Request was received by the SUT.
Dunn & Martin Informational [Page 111]
RFC 3116 Methodology for ATM Benchmarking June 2001
Reporting Format:
The results of the Address Registration Time tests SHOULD be
reported in a form of a table. The rows SHOULD be labeled Set
Request Send, Set Request accepted, Final Get Request send, and
Final Get Request received. The columns SHOULD be labeled time
message sent, time response received, and correct response. The
elements of the columns 1 and 2 SHOULD be in seconds. The
elements of column 3 SHOULD be be either True or False, indicating
whether the particular condition was observed for each test.
The table MUST also indicate the packet size in octets and traffic
rate in packets per second as generated by the test device.
4. Security Considerations
As this document is solely for the purpose of providing methodology
and describes neither a protocol nor an implementation, there are no
security considerations associated with this document.
5. Notices
The IETF takes no position regarding the validity or scope of any
intellectual property or other rights that might be claimed to
pertain to the implementation or use of the technology described in
this document or the extent to which any license under such rights
might or might not be available; neither does it represent that it
has made any effort to identify any such rights. Information on the
IETFs procedures with respect to rights in standards-track and
standards-related documentation can be found in BCP-11. Copies of
claims of rights made available for publication and any assurances of
licenses to be made available, or the result of an attempt made to
obtain a general license or permission for the use of such
proprietary rights by implementors or users of this specification can
be obtained from the IETF Secretariat.
The IETF invites any interested party to bring to its attention any
copyrights, patents or patent applications, or other proprietary
rights which may cover technology that may be required to practice
this standard. Please address the information to the IETF Executive
Director.
Dunn & Martin Informational [Page 112]
RFC 3116 Methodology for ATM Benchmarking June 2001
6. References
[RFC2544] Bradner, S. and J. McQuaid, "Benchmarking Methodology
for Network Interconnect Devices", RFC 2544, March
1999.
[RFC2225] Laubach, M. and J. Halpern, "Classical IP and ARP over
ATM", RFC 2225, April 1998.
[RFC2761] Dunn, J. and C. Martin, "Terminology for ATM
Benchmarking", RFC 2761, February 2000.
[AF-ILMI4.0] ATM Forum Integrated Local Management Interface
Version 4.0, af-ilmi-0065.000, September 1996.
[AF-TEST-0022] Introduction to ATM Forum Test Specifications, af-
test-0022.00, December 1994.
[AF-TM4.1] ATM Forum, Traffic Management Specification Version
4.1, af-tm-0121.00, April 1996.
[AF-UNI3.1] ATM Forum, User Network Interface Specification
Version 3.1, September 1994.
[AF-UNI4.0] ATM Forum, User Network Interface Specification
Version 4.0, July 1996.
7. Authors' Addresses
Jeffrey Dunn
Advanced Network Consultants, Inc.
4214 Crest Place
Ellicott City, MD 21043, USA
Phone: +1 (410) 750-1700
EMail: Jeffrey.Dunn@worldnet.att.net
Cynthia Martin
Advanced Network Consultants, Inc.
4214 Crest Place
Ellicott City, MD 21043, USA
Phone: +1 (410) 750-1700
EMail: Cynthia.E.Martin@worldnet.att.net
Dunn & Martin Informational [Page 113]
RFC 3116 Methodology for ATM Benchmarking June 2001
Appendix A: Ranges
ATM NSAP Network Prefix.
39 0000 0000 0000 0000 0000 0000-39 0000 0000 0000 0000 0000 00FF
39 0000 0000 0000 0000 0001 0000-39 0000 0000 0000 0000 0001 00FF
39 0000 0000 0000 0001 0000 0000
39 0000 0000 0000 0002 0020 0000
39 0000 0000 0300 0002 0030 0000
39 0000 0000 4000 0002 0060 0000
39 0000 0006 0060 0002 0030 0000
39 0000 0006 0050 0002 0030 0000
39 0000 0009 0300 0002 0030 0000
39 0000 00A0 0300 0002 0030 0000
39 0000 0B00 0300 0002 0030 0000
39 0000 C000 0300 0002 0030 0000
ATM NSAP End System Identifier.
1111 1111 1111 00-1111 1111 11FF 00
2222 2222 2000 00-2222 2222 2222 00
9999 999A 0000 00-9999 999C 0000 00
Appendix B: Rates
PNNI Routing Update Size.
1) 1 PNNI routing entry update on non-aggregated addresses
2) 2 PNNI routing entry updates on non-aggregated addresses
3) 5 PNNI routing entry updates on non-aggregated addresses
4) 1 % of total available bandwidth or 1 Mb/s, whichever is less on
non- aggregated addresses
5) 1 % of total available bandwidth or 1 Mb/s, whichever is less on
of non-aggregated addresses and of aggregated addresses
6) 1 % of total available bandwidth or 1 Mb/s, whichever is less on
aggregated addresses
7) 2 % of total available bandwidth or 2 Mb/s, whichever is less on
non- aggregated addresses
8) 2 % of total available bandwidth or 2 Mb/s, whichever is less on
of non-aggregated addresses and of aggregated addresses
9) 2 % of total available bandwidth or 2 Mb/s, whichever is less on
aggregated addresses
Dunn & Martin Informational [Page 114]
RFC 3116 Methodology for ATM Benchmarking June 2001
PNNI Routing Update Repetition Interval.
Repetition Interval begins after initial PNNI routing table
stabilizes.
1) 1 update every 1 hour, for 24 hours
2) 1 update every 30 minutes, for 24 hours
3) 1 update every 5 minutes, for 1 hour
4) 1 update every 1 minute, for 15 minutes
5) 1 update every 30 seconds, for 5 minutes
6) 1 update every 30 seconds, for 1 minute
7) 1 update every 1 second, for 30 seconds
Maximum WAN Connection rates in packets per second (pps):
25.6 OC-3c OC-12c
IP Packet Size
octets/cells
44/2 30188 176603 706412
64/2 30188 176603 706412
128/3 20125 117735 470940
256/6 10062 58867 235468
1024/22 2744 16054 64216
1518/32 1886 11037 44148
2048/43 1404 8214 32856
4472/94 642 3757 15028
9180/192 314 1839 7356
Maximum LAN Connection rates in packets per second (pps):
DS-1 DS-3 E1 E3
IP Packet Size
octets/cells
44/2 1811 52133 2340 40000
64/2 1811 52133 2340 40000
128/3 1207 34755 1560 26666
256/6 603 17377 780 13333
1024/22 164 4739 212 3636
1518/32 113 3258 146 2500
2048/43 84 2424 108 1860
4472/94 38 1109 49 851
9180/192 18 543 24 416
Dunn & Martin Informational [Page 115]
RFC 3116 Methodology for ATM Benchmarking June 2001
Notes: 1. PDU size in cells is computed based on ceiling( ( PDU size
in octets + 16) / 48). This assumes an 8 octet LLC/SNAP header and
an 8 octet AAL/5 trailer.
2. Due to the number of possible configurations, IMA pps rates are
not listed, but may be derived from the following formula: floor
(IDCR/cells per packet), where cells per packet is computed as in
note 1.
3. The following cell rates were used: DS-1 = 3622 cps (using ATM TC)
E1 = 4681 cps 25.6 Mb/s = 60377 cps E3 = 80000 cps (using ATM TC)
DS-3 = 104266 cps (using ATM TC) OC-3c = 353207 cps OC-12c = 1412828
cps
Appendix C: PDU's
TCP/IP over ATM Example 1.
LLC: DSAP 0xAA (SNAP-SAP)
SSAP 0xAA (SNAP-SAP)
Control 0x03 (Unnumbered Information)
SNAP: OUI 0x00-00-00 (Ethertype)
PID 0x0800 (Internet Protocol)
IP: Version = 4
Header length = 20
Type of service = 0
000. .... Precedence = Routine(0)
...0 .... Delay = Normal (0)
.... 0... Throughput = Normal (0)
.... .0.. Reliability = Normal (0)
Packet length = 40
Id = 0
Fragmentation Info = 0x0000
.0.. .... .... .... Don't Fragment Bit = FALSE
..0. .... .... .... More Fragments Bit = FALSE
...0 0000 0000 0000 Fragment offset = 0
Time to live = 255
Protocol = TCP (6)
Header checksum = F9CF
Source address = 15.19.209.236
Destination address = 15.19.209.237
TCP: Source port = smtp (25)
Destination port = smtp (25)
Sequence number = 1
Ack number = 0
Data offset = 20
Flags = 0x02
..0. .... URGENT Flag = FALSE
...0 .... ACK Flag = FALSE
Dunn & Martin Informational [Page 116]
RFC 3116 Methodology for ATM Benchmarking June 2001
.... 0... PUSH Flag = FALSE
.... .0.. RST Flag = FALSE
.... ..1. SYN Flag = TRUE
.... ...0 FIN Flag = FALSE
Window = 0
Checksum = EDAF
Urgent pointer = 00000000
TCP/IP over ATM Example 2.
LLC: DSAP 0xAA (SNAP-SAP)
SSAP 0xAA (SNAP-SAP)
Control 0x03 (Unnumbered Information)
SNAP: OUI 0x00-00-00 (Ethertype)
PID 0x0800 (Internet Protocol)
IP: Version = 4
Header length = 20
Type of service = 0
000. .... Precedence = Routine(0)
...0 .... Delay = Normal (0)
.... 0... Throughput = Normal (0)
.... .0.. Reliability = Normal (0)
Packet length = 40
Id = 0
Fragmentation Info = 0x0000
.0.. .... .... .... Don't Fragment Bit = FALSE
..0. .... .... .... More Fragments Bit = FALSE
...0 0000 0000 0000 Fragment offset = 0
Time to live = 255
Protocol = TCP (6)
Header checksum = F9CF
Source address = 15.19.209.236
Destination address = 15.19.209.237
TCP: Source port = ftp-data (20)
Destination port = 2000
Sequence number = 1
Ack number = 0
Data offset = 20
Flags = 0x02
..0. .... URGENT Flag = FALSE
...0 .... ACK Flag = FALSE
.... 0... PUSH Flag = FALSE
.... .0.. RST Flag = FALSE
.... ..1. SYN Flag = TRUE
.... ...0 FIN Flag = FALSE
Window = 0
Checksum = E5FD
Urgent pointer = 00000000
Dunn & Martin Informational [Page 117]
RFC 3116 Methodology for ATM Benchmarking June 2001
UDP/IP over ATM Example.
LLC: DSAP 0xAA (SNAP-SAP)
SSAP 0xAA (SNAP-SAP)
Control 0x03 (Unnumbered Information)
SNAP: OUI 0x00-00-00 (Ethertype)
PID 0x0800 (Internet Protocol)
IP: Version = 4
Header length = 20
Type of service = 0
000. .... Precedence = Routine(0)
...0 .... Delay = Normal (0)
.... 0... Throughput = Normal (0)
.... .0.. Reliability = Normal (0)
Packet length = 28
Id = 0
Fragmentation Info = 0x0000
.0.. .... .... .... Don't Fragment Bit = FALSE
..0. .... .... .... More Fragments Bit = FALSE
...0 0000 0000 0000 Fragment offset = 0
Time to live = 255
Protocol = ICMP (1)
Header checksum = F9E0
Source address = 15.19.209.236
Destination address = 15.19.209.237
ICMP: Type = Echo request (8)
Code = 0
Checksum = F7FF
Identifier = 0 (0x0)
Sequence Number = 0 (0x0)
RIP Routing Update over ATM.
-- DATAGRAM HEADER
offset data (hex) description
00 FF FF FF FF FF FF dest MAC address is broadcast
06 xx xx xx xx xx xx source hardware address
12 08 00 type
-- IP HEADER
14 45 IP version - 4, header length (4
byte units) - 5
15 00 service field
16 00 EE total length
18 00 00 ID
20 40 00 flags (3 bits) 4 (do not
fragment),
fragment offset-0
22 0A TTL
Dunn & Martin Informational [Page 118]
RFC 3116 Methodology for ATM Benchmarking June 2001
23 11 protocol - 17 (UDP)
24 C4 8D header checksum
26 xx xx xx xx source IP address
30 xx xx xx destination IP address
33 FF host part = FF for broadcast
-- UDP HEADER
34 02 08 source port 208 = RIP
36 02 08 destination port 208 = RIP
38 00 DA UDP message length
40 00 00 UDP checksum
-- RIP packet
42 02 command = response
43 01 version = 1
44 00 00 0
-- net 1
46 00 02 family = IP
48 00 00 0
50 xx xx xx net 1 IP address
53 00 net not node
54 00 00 00 00 0
58 00 00 00 00 0
62 00 00 00 07 metric 7
-- net 2
66 00 02 family = IP
68 00 00 0
70 xx xx xx net 2 IP address
73 00 net not node
74 00 00 00 00 0
78 00 00 00 00 0
82 00 00 00 07 metric 7
-- net 3
86 00 02 family = IP
88 00 00 0
90 xx xx xx net 3 IP address
93 00 net not node
94 00 00 00 00 0
98 00 00 00 00 0
102 00 00 00 07 metric 7
-- net 4
106 00 02 family = IP
108 00 00 0
Dunn & Martin Informational [Page 119]
RFC 3116 Methodology for ATM Benchmarking June 2001
110 xx xx xx net 4 IP address
113 00 net not node
114 00 00 00 00 0
118 00 00 00 00 0
122 00 00 00 07 metric 7
-- net 5
126 00 02 family = IP
128 00 00 0
130 00 net 5 IP address
133 00 net not node
134 00 00 00 00 0
138 00 00 00 00 0
142 00 00 00 07 metric 7
-- net 6
146 00 02 family = IP
148 00 00 0
150 xx xx xx net 6 IP address
153 00 net not node
154 00 00 00 00 0
158 00 00 00 00 0
162 00 00 00 07 metric 7
UNI 3.1 Signaling Setup Message Example. PCR will not allow CAC to
reject the call.
Protocol Discriminator : Q.93B UNI call control
Call Reference Length : 3
Call Reference Flag : orig
Call Reference Value : 0
Message Type : SETUP
Ext : last octet
Action Indicator : clear call
Message Length : 50
Information Element ID : ATM Traffic Descriptor
Ext : last octet
Coding Standard : ITU-T standard
Action Indicator : clear call
IE Length : 9
Cell Rate Subfield ID : forward peak CR(CLP=0+1)
Forward Peak Cell Rate : 1
Cell Rate Subfield ID : backward peak CR(CLP=0+1)
Backward Peak Cell Rate : 1
Cell Rate Subfield ID : best effort indicator
Information Element ID : Broadband Bearer Capability
Ext : last octet
Coding Standard : ITU-T standard
Dunn & Martin Informational [Page 120]
RFC 3116 Methodology for ATM Benchmarking June 2001
Action Indicator : clear call
IE Length : 2
Ext : last octet
Bearer Class : BCOB-X
Ext : last octet
Clipping Susceptibility : not susceptible to clipping
User Plane Connection CFG : point-to-point
Information Element ID : Called Party Number
Ext : last octet
Coding Standard : ITU-T standard
Action Indicator : clear call
IE Length : 21
Ext : last octet
Addressing/Numbering Plan : ISO NSAP addressing
ISO NSAP Address Octets : 3900000000000000000000000011111111111100
Information Element ID : Quality of Service Parameter
Ext : last octet
Coding Standard : ITU-T standard
Action Indicator : clear call
IE Length : 2
QoS Class Forward : QoS class 0 - unspecified
QoS Class Backward : QoS class 0 - unspecified
UNI 3.1 Signaling Setup Message Reject Example. PCR will allow
CAC to reject the call.
Protocol Discriminator : Q.93B UNI call control
Call Reference Length : 3
Call Reference Flag : orig
Call Reference Value : 0
Message Type : SETUP
Ext : last octet
Action Indicator : clear call
Message Length : 50
Information Element ID : ATM Traffic Descriptor
Ext : last octet
Coding Standard : ITU-T standard
Action Indicator : clear call
IE Length : 8
Cell Rate Subfield ID : forward peak CR(CLP=0+1)
Forward Peak Cell Rate : 300000
Cell Rate Subfield ID : backward peak CR(CLP=0+1)
Backward Peak Cell Rate : 300000
Information Element ID : Broadband Bearer Capability
Ext : last octet
Coding Standard : ITU-T standard
Flag : not significant
Action Indicator : clear call
Dunn & Martin Informational [Page 121]
RFC 3116 Methodology for ATM Benchmarking June 2001
IE Length : 3
Ext : another octet
Bearer Class : BCOB-X
Ext : last octet
Traffic Type : constant bit rate
Timing Requirements : end-to-end timing required
Ext : last octet
Clipping Susceptibility : not susceptible to clipping
User Plane Connection CFG : point-to-point
Information Element ID : Called Party Number
Ext : last octet
Coding Standard : ITU-T standard
Action Indicator : clear call
IE Length : 21
Ext : last octet
Addressing/Numbering Plan : ISO NSAP addressing
ISO NSAP Address Octets : 3900000000000000000000000011111111111100
Information Element ID : Quality of Service Parameter
Ext : last octet
Coding Standard : ITU-T standard
Action Indicator : clear call
IE Length : 2
QoS Class Forward : QoS class 0 - unspecified
QoS Class Backward : QoS class 0 - unspecified
UNI 3.1 Signaling Release Message, specifying a cause code of normal
call clearing.
Protocol Discriminator : Q.93B UNI call control
Call Reference Length : 3
Call Reference Flag : orig
Call Reference Value : 0
Message Type : RELEASE
Ext : last octet
Action Indicator : clear call
Message Length : 6
Information Element ID : Cause
Ext : last octet
Coding Standard : ITU-T standard
Action Indicator : clear call
IE Length : 2
Ext : last octet
Location : user
Ext : last octet
Cause Value : NE:normal call clearing
PNNI Signaling Setup Message, specifying a DTL which is not blocked
by the far end SUT.
Dunn & Martin Informational [Page 122]
RFC 3116 Methodology for ATM Benchmarking June 2001
Protocol Discriminator : PNNI signalling
Call Reference Length : 3
Call Reference Flag : from
Message Type : SETUP
Ext : last octet
Pass Along Request : no pass along request
Action Indicator : clear call
Message Length : 56
Information Element ID : ATM Traffic Descriptor
Ext : last octet
Coding Standard : ITU-T standardized
Pass Along Request : no pass along request
Action Indicator : clear call
IE Length : 0
Information Element ID : Broadband Bearer Capability
Ext : last octet
Coding Standard : ITU-T standardized
Pass Along Request : no pass along request
Action Indicator : clear call
IE Length : 3
Ext : another octet
Bearer Class : BCOB-X
Ext : last octet
ATM Transfer Capability : reserved for bwd compatibility
Ext : last octet
Clipping Susceptibility : not susceptible to clipping
User Plane Connection cfg : point-to-point
Information Element ID : Called Party Number
Ext : last octet
Coding Standard : ITU-T standardized
Pass Along Request : no pass along request
Action Indicator : clear call
IE Length : 8
Ext : last octet
Type of Number : unknown
Addressing/Numbering Plan : ATM endsystem address
ATM Endsystem Address Oct : 11111111111101
Information Element ID : Designated Transit List
Ext : last octet
Coding Standard : ATM Forum specific
Pass Along Request : no pass along request
Action Indicator : clear call
IE Length : 29
Current Transit Pointer : 0
Logical Node/Port Indicat : Logical Node/Port Indicator
Logical Node Identifier : 3900000000000000000000000011111111111100
Dunn & Martin Informational [Page 123]
RFC 3116 Methodology for ATM Benchmarking June 2001
PNNI Signaling Setup Message Reject, specifying a DTL which is
blocked by the far end SUT.
Protocol Discriminator : PNNI signalling
Call Reference Length : 3
Call Reference Flag : from
Call Reference Value : 0
Message Type : SETUP
Ext : last octet
Pass Along Request : no pass along request
Action Indicator : clear call
Message Length : 56
Information Element ID : ATM Traffic Descriptor
Ext : last octet
Coding Standard : ITU-T standardized
Pass Along Request : no pass along request
Action Indicator : clear call
IE Length : 0
Information Element ID : Broadband Bearer Capability
Ext : last octet
Coding Standard : ITU-T standardized
Pass Along Request : no pass along request
Action Indicator : clear call
IE Length : 3
Bearer Class : BCOB-X
Ext : last octet
ATM Transfer Capability : reserved for bwd compatibility
Ext : last octet
Clipping Susceptibility : not susceptible to clipping
User Plane Connection cfg : point-to-point
Information Element ID : Called Party Number
Ext : last octet
Coding Standard : ITU-T standardized
Pass Along Request : no pass along request
Action Indicator : clear call
IE Length : 8
Ext : last octet
Addressing/Numbering Plan : ATM endsystem address
ATM Endsystem Address Oct : 11111111111101
Information Element ID : Designated Transit List
Ext : last octet
Coding Standard : ATM Forum specific
Pass Along Request : no pass along request
Action Indicator : clear call
IE Length : 29
Current Transit Pointer : 0
Logical Node/Port Indicat : Logical Node/Port Indicator
Logical Node Identifier : 3900000000000000000000000011111111111100
Dunn & Martin Informational [Page 124]
RFC 3116 Methodology for ATM Benchmarking June 2001
PNNI Far End Request Message.
Header: Packet Type 5 (PTSE REQUEST)
Packet Length 40
Protocol Version 1
Newest Version Supported 1
Oldest Version Supported 0
Reserved 0
IG: Information Group Type 513 (Requested PTSE Header)
Information Group Length 32
Originating Node ID
00013900-00000000-00000000-00000011-11111111-1100
PTSE Request Count 1
PTSE Identifier 0
PNNI PTSE, specifying a routing topology.
Header: Packet Type 4 (DATABASE SUMMARY)
Packet Length 76
Protocol Version 1
Newest Version Supported 1
Oldest Version Supported 0
Reserved 0
Initialize (I)Bit 1 (during init. of DB syn
process)
More (M)Bit 1 (PTSEs to summarize)
Master (MS)Bit 1 (both nodes)
Reserved 0
Reserved 0
DS Sequence Number 0
IG: Information Group Type 512 (Nodal PTSE Summaries)
Information Group Length 60
Originating Node ID
00013900-00000000-00000000-00000011-11111111-1100
Originating Node's Peer Group 00000000-00000000-00000000-
0001
Reserved 0
PTSE Summary Count 1
PTSE Type 0
Reserved 0
PTSE Identifier 0
PTSE Sequence Number 0
PTSE Checksum 0
PTSE Remaining Lifetime 0
Dunn & Martin Informational [Page 125]
RFC 3116 Methodology for ATM Benchmarking June 2001
PNNI PTSE Update, specifying a change in the routing topology.
Header: Packet Type 2 (PTSP)
Packet Length 96
Protocol Version 1
Newest Version Supported 1
Oldest Version Supported 0
Reserved 0
Originating Node ID
00013900-00000000-00000000-00000011-11111111-1100
Originating Node's Peer Group 00000000-00000000-00000000-
0001
IG: Information Group Type 64 (PTSE)
Information Group Length 52
PTSE Type 0
Reserved 0
PTSE Identifier 0
PTSE Sequence Number 0
PTSE Checksum 42252
PTSE Remaining Lifetime 3600
IG: Information Group Type 224 (Internal Reachable ATM
Addresses)
Information Group Length 32
VP Capability Flag 1 (VPCs supported)
Reserved 0
Reserved 0
Port ID 0
Scope of Advertisement 96
Address Information Length 14
Address Information Count 1
Prefix Length 13
Reachable Address Prefix 39000000-00000000-00000000-01
Dunn & Martin Informational [Page 126]
RFC 3116 Methodology for ATM Benchmarking June 2001
Full Copyright Statement
Copyright (C) The Internet Society (2001). All Rights Reserved.
This document and translations of it may be copied and furnished to
others, and derivative works that comment on or otherwise explain it
or assist in its implementation may be prepared, copied, published
and distributed, in whole or in part, without restriction of any
kind, provided that the above copyright notice and this paragraph are
included on all such copies and derivative works. However, this
document itself may not be modified in any way, such as by removing
the copyright notice or references to the Internet Society or other
Internet organizations, except as needed for the purpose of
developing Internet standards in which case the procedures for
copyrights defined in the Internet Standards process must be
followed, or as required to translate it into languages other than
English.
The limited permissions granted above are perpetual and will not be
revoked by the Internet Society or its successors or assigns.
This document and the information contained herein is provided on an
"AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Acknowledgement
Funding for the RFC Editor function is currently provided by the
Internet Society.
Dunn & Martin Informational [Page 127]