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Keywords: [--------|p], Ethernet Passive Optical Networks, pon, epon, IEEE802.3ah, 802.3ah, p2mp, mpcp, llid, onu, olt, optical access
Network Working Group L. Khermosh
Request for Comments: 4837 PMC-SIERRA
Category: Standards Track July 2007
Managed Objects of Ethernet Passive Optical Networks (EPON)
Status of This Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The IETF Trust (2007).
Abstract
This document defines a portion of the Management Information Base
(MIB) for use with network management protocols in TCP/IP based
Internets. In particular, it defines objects for managing interfaces
that conform to the Ethernet Passive Optical Networks (EPON) standard
as defined in the IEEE Std 802.3ah-2004, which are extended
capabilities to the Ethernet like interfaces.
Khermosh Standards Track [Page 1]
RFC 4837 Managed Objects of EPON July 2007
Table of Contents
1. The Internet-Standard Management Framework . . . . . . . . . . 3
2. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1. Terminology and Abbreviations . . . . . . . . . . . . . . 3
2.2. EPON Architecture Highlights . . . . . . . . . . . . . . . 5
2.2.1. Introduction . . . . . . . . . . . . . . . . . . . . . 5
2.2.2. Principles of Operation . . . . . . . . . . . . . . . 6
2.2.3. The Physical Media . . . . . . . . . . . . . . . . . . 7
2.2.4. PMD Specifications . . . . . . . . . . . . . . . . . . 8
2.2.5. Point-to-Point Emulation . . . . . . . . . . . . . . . 8
2.2.6. Principles of the MPCP . . . . . . . . . . . . . . . . 10
2.2.7. Forward Error Correction (FEC) . . . . . . . . . . . . 12
2.3. Management Architecture . . . . . . . . . . . . . . . . . 13
3. MIB Structure . . . . . . . . . . . . . . . . . . . . . . . . 17
4. Relation to Other MIB Modules . . . . . . . . . . . . . . . . 22
4.1. Relation to the Interfaces MIB and Ethernet-like
Interfaces MIB . . . . . . . . . . . . . . . . . . . . . . 22
4.2. Relation to the IEEE 802.3 MAU MIBs . . . . . . . . . . . 29
4.3. Relation to the EFM OAM MIB . . . . . . . . . . . . . . . 29
4.4. Relation to the Bridge MIB . . . . . . . . . . . . . . . . 30
5. Mapping of IEEE 802.3ah Managed Objects . . . . . . . . . . . 31
6. Definitions - The DOT3 EPON MIB Module . . . . . . . . . . . . 33
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 85
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 86
9. Security Considerations . . . . . . . . . . . . . . . . . . . 86
10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 88
10.1. Normative References . . . . . . . . . . . . . . . . . . . 88
10.2. Informative References . . . . . . . . . . . . . . . . . . 90
Khermosh Standards Track [Page 2]
RFC 4837 Managed Objects of EPON July 2007
1. The Internet-Standard Management Framework
For a detailed overview of the documents that describe the current
Internet-Standard Management Framework, please refer to Section 7 of
RFC 3410 [RFC3410]. Managed objects are accessed via a virtual
information store, termed the Management Information Base or MIB.
MIB objects are generally accessed through the Simple Network
Management Protocol (SNMP). Objects in the MIB are defined using the
mechanisms defined in the Structure of Management Information (SMI).
This memo specifies a MIB module that is compliant to the SMIv2,
which is described in STD 58, RFC 2578 [RFC2578]; STD 58, RFC 2579
[RFC2579]; and STD 58, RFC 2580 [RFC2580].
2. Overview
This document defines a portion of the Management Information Base
(MIB) for use with network management protocols in TCP/IP based
Internets. In particular, it defines objects for managing interfaces
that conform to the Ethernet Passive Optical Networks (EPON) standard
as defined in [802.3ah], which are extended capabilities to the
Ethernet like interfaces. The document contains a list of management
objects based on the attributes defined in the relevant parts of
[802.3ah] Annex 30A, referring to EPON.
2.1. Terminology and Abbreviations
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
ACK - Acknowledge
BER - Bit Error Rate
BW - Bandwidth
CO - Central Office
CPE - Customer Premises Equipment
CRC - Cyclic Redundancy Check
EFM - Ethernet First Mile
EPON - Ethernet Passive Optical Network
FCS - Frame Check Sequence
Khermosh Standards Track [Page 3]
RFC 4837 Managed Objects of EPON July 2007
FEC - Forward Error Correction
GMII - Gigabit Media Independent Interface
LAN - Local Area Network
LLID - Logical Link Identifier
MAC - Media Access Control
Mbps - Megabit per second
MDI - Medium Dependent Interface
MDIO - Management Data Input/Output
MPCP - Multi-Point Control Protocol
MP2PE - Multi-Point to Point Emulation
OAM - Operation Administration Maintenance
OLT - Optical Line Terminal (Server unit of the EPON)
OMP - Optical Multi-Point
ONU - Optical Network Unit (Client unit of the EPON)
P2MP - Point-to-Multipoint
P2PE - Point-to-Point Emulation
PCS - Physical Coding Sublayer
PHY - Physical Layer
PMA - Physical Medium Attachment
PMD - Physical Medium Dependent
PON - Passive Optical Network
RS - Reconciliation Sublayer
RTT - Round Trip Time
SLA - Service Level Agreement
Khermosh Standards Track [Page 4]
RFC 4837 Managed Objects of EPON July 2007
SLD - Start of LLID Delimiter
TDM - Time Division Multiplexing
TQ - Time Quanta
2.2. EPON Architecture Highlights
2.2.1. Introduction
The EPON standard, as defined in [802.3ah], defines the physical
media (Layer 1) and media access (Layer 2) of the EPON interface.
The EPON is a variant of the Gigabit Ethernet protocol for the
Optical Access. The Optical Access topology is based on passive
optical splitting topology. The link of a Passive Optical Network
(PON) is based on a single, shared optical fiber with passive optical
splitters dividing the single fiber into separate subscribers.
The Optical Line Terminal (OLT) is the server unit of the network,
located at the Central Office (CO).
The Optical Network Unit (ONU) is the client unit of the network,
located at the Customer Premises Equipment (CPE).
The following diagram describes the PON topology:
Device with
one or more P2MP
interfaces such as OLT
for EPON An EPON IP host
------- OLT ONU "modem" --------
Other IEEE | | interface | interface ------ Other IEEE| |
interface | |-------\----------------| | interface | |
===========| | \ | |===========| |
| | \ ------ --------
| | \ ------ --------
. . \------------| | | |
| |------\ | |===========| |
| | \ ------ --------
------- \ etc
Khermosh Standards Track [Page 5]
RFC 4837 Managed Objects of EPON July 2007
The IEEE layering architecture of an EPON interface is defined in the
diagram of Figure 56.2 [802.3ah]. The following clauses in the
[802.3ah] define the corresponding layers of an EPON interface:
clause 30 - Management
clause 60 - PMD for EPON media (Burst PMD)
clause 64 - MPCP (Multi-Point Control Protocol) - defines the Multi-
Point architecture, and control protocol for the media access of
EPON.
clause 65 -
a) Virtual links definition for the EPON
b) FEC
c) PMA for the EPON.
2.2.2. Principles of Operation
The specification of the EPON interface is based on the specification
of the gigabit Ethernet interface as described in [802.3], clauses 35
and 36. The Ethernet MAC is working in gigabit rate. The media
interface to the MAC is through the GMII interface, as described in
clause 35, and the PCS layer is based on the gigabit Ethernet PCS as
described in clause 36. The special EPON layers are added to the
Ethernet layering in the following places:
The MPCP is placed in the MAC control layer, providing the EPON
control protocol. The Emulation layer, located at the RS
(Reconciliation Sublayer), creates virtual private path to each ONU.
The FEC layer is located between the PCS and PMA layers, enhancing
reach and split performance of the optical link.
Khermosh Standards Track [Page 6]
RFC 4837 Managed Objects of EPON July 2007
The following diagram describes the layering model of an EPON
interface:
+==========================================+
| Higher layers |
+==========================================+
| 802.1D Bridge |
+==========================================+
| MAC client| ... |MAC client|
+==========================================+
| MAC Control - (MPCP) | *NEW*
+==========================================+
| MAC | ... | MAC |
+==========================================+
| P2P Emulation (P2PE) | *NEW*
+==========================================+
| |
| GMII |
| |
+==========================================+
| PCS |
+==========================================+
| FEC | *NEW*
+==========================================+
| PMA | *Enhanced parameters
+==========================================+ for EPON*
| PMD | *Enhanced parameters
+==========================================+ for EPON*
| |
| MDI |
| |
/===================/
/ Media /
/===================/
2.2.3. The Physical Media
The physical link is a fiber optical link. The OLT and ONUs are
connected through passive optical splitters. Downlink denotes the
transmission from the OLT to the ONUs. Uplink denotes the
transmission from the ONUs to the OLT. Uplink and downlink are
multiplexed using separated wavelengths on the same fiber. The
downlink is a broadcast medium where the OLT transmits the data to
all ONUs. The uplink is a shared transmission medium for all of the
ONUs. The uplink access is based on time division multiplexing (TDM)
and the management of the TDM media access is defined by the Multi-
Khermosh Standards Track [Page 7]
RFC 4837 Managed Objects of EPON July 2007
Point Control Protocol (MPCP). The MPCP is a control protocol based
on an inband packet messaging. The OLT sends control messages (GATE
messages) allowing ONUs to transmit, defining when the transmission
occurs and what is its duration. These messages define the
transmission order and the amount of BW for each ONU. A scheduling
algorithm at the OLT, which is not defined in the [802.3ah], is
responsible for allocating the BW and controlling the delay of each
ONU according to its SLA.
2.2.4. PMD Specifications
PMD specifications select the same optical wavelength plan as the
[ITU-T.G.983]. The transceivers are derivatives of existing Ethernet
optical transceivers, with dual wavelength on a single fiber, and
extended burst capabilities for the uplink. The uplink burst
capability is the burst transmission functionality for the ONUs and
burst reception functionality for the OLT. The [802.3ah] selected
very relaxed burst parameters to reduce the device cost of EPON
products.
2.2.5. Point-to-Point Emulation
The downstream is a broadcast link, which means that the OLT
transmission is shared for all ONUs. The sharing of the transmission
of the OLT has some negative privacy aspects and should be limited to
broadcast traffic in nature only. The traffic dedicated to each ONU
should not be shared. The solution provided by [802.3ah] is to
partition the EPON link, in a virtual manner, between the ONUs. Each
ONU has a dedicated virtual link to the OLT. The [802.3ah] also
defines an additional link for broadcast transmission. The medium
becomes an aggregation of point-to-point tunnels. The OLT cannot
preserve its EPON interface as a single interface connected to N
devices (following the properties of the physical interface). The
EPON interface of the OLT is partitioned into separate virtual
interfaces; an interface for each virtual link. Hence, the OLT
behaves like a device with N virtual ports (and an additional port
for the broadcast transmission). The additional single-copy-
broadcast channel (tagged as all one LLID) is added to allow the
broadcast transmission within a single copy to all ONUs, preserving
the inherent advantage of BW efficiency of the PON shared media. The
ONUs filter the downlink traffic that is not intended for their
reception, according to the virtual link marking. An LLID tag is
attached at the preamble of the Ethernet packet denoting the virtual
link. The LLID marks the destination port in the downstream and
source port in the upstream.
Khermosh Standards Track [Page 8]
RFC 4837 Managed Objects of EPON July 2007
The virtual links concept is also used to avoid a violation of the
[802.1d] bridging rules for peer-to-peer traffic in the PON. Peer-
to-peer traffic is traffic between ONUs in the same PON. The OLT
cannot preserve the EPON interface as a single interface, connected
to N devices, and allow traffic between these devices without
violating the bridging rules. The source address and destination
address of the peer-to-peer traffic are behind the same port and
therefore the traffic should be discarded. The separation of the
ONUs into virtual links solves this issue. The OLT has N virtual
ports for the single physical EPON port. A bridge sees a single MAC
Client for every link pair.
The private paths concept solves the networking problems and provides
subscriber isolation.
As the tunneling is only a virtual tunneling, there is a single
physical interface and a single physical layer for the device so that
some attributes are shared. For example, the interface has a single
local MAC address.
The virtual tunneling for an OLT with 3 ONUs is illustrated in the
following diagram.
Khermosh Standards Track [Page 9]
RFC 4837 Managed Objects of EPON July 2007
Trunk Line
|
|
|
\|/
+===============================================+
| 802.1D Bridge |
+===============================================+
| MAC client1| ... |MAC client3|
+===============================================+
| MP2PE |
+===============================================+
| PHY |
=================================================
| | |
| | |
\|/ \|/ \|/
+============+ +============+ +============+
| PHY | | PHY | | PHY |
+============+ +============+ +============+
| MP2PE | | MP2PE | | MP2PE |
+============+ +============+ +============+
| MAC client | | MAC client | | MAC client |
+============+ +============+ +============+
| PHY | | PHY | | PHY |
+============+ +============+ +============+
/|\ /|\ /|\
| | |
| | |
| | |
Subscriber1 Subscriber2 Subscriber3
2.2.6. Principles of the MPCP
The EPON standard defines a media access control of an optical Access
network. The Access network has some substantial differences from
the legacy LAN for which the Ethernet was designed. The differences
lie mainly in the provisioning of the network. An Access network is
an administrated environment, with an operator providing the service
and subscribers consuming it. The operator is controlling the
network and managing its traffic. For instance, BW is controlled and
subscribers are billed for services. The MPCP protocol divides the
Ethernet interfaces into two unequal types of network units. The
first interface is an OLT interface, which is a server unit,
controlling the network. The second interface is an ONU interface,
which is a client unit, participating in the network.
Khermosh Standards Track [Page 10]
RFC 4837 Managed Objects of EPON July 2007
The OLT, which is the server unit, manages the network. The MPCP
controls the TDM transmission of the uplink. The MPCP is implemented
at the MAC control layer and the MPCP messages are MAC control
messages using the 0x8808 Ethertype. These messages are not
forwarded out of the MAC.
A concept of time must exist in the protocol in order to schedule the
uplink transmission. A timestamp, which is set by the OLT and
synchronized between the network units, is passed through the MPCP
messages. The timestamp is also used to measure the RTT of each ONU.
RTT is compensated by the OLT in the generation of the grants for the
uplink transmission. The difference of incoming timestamp to local
time allows the OLT to calculate the RTT. RTT compensation is needed
as the RTT in an Access network can have a significant value. The
standard allows the network to reach a 20 km distance, which is
equivalent to a 200 usec RTT (25 Kbytes of data).
The TDM control is done using GATE messages. These messages define,
for each ONU, the time for transmission and the length of
transmission. The RTT is reduced from the transmission time in the
GATE message to shift the transmission time of the ONU in the
opposite direction.
A scheduling algorithm at the OLT, which is not defined in the
[802.3ah], is responsible for dividing the BW and controlling the
transmission delay of each ONU according to its SLA. The MPCP
defines a closed loop operation in order for this algorithm to be
efficient. The MPCP allows the ONUs to report on the amount of BW
they require for transmission using a special REPORT message. This
allows allocating BW to an ONU only when requested, relying on the
statistical burst property of the traffic, and allowing different
peak BW for different ONUs at different times; hence, allowing
oversubscription of the BW. The REPORT message reports the amount of
data waiting in the ONU queues.
In addition, the MPCP defines a protocol of auto-discovery and
registration of ONUs.
Khermosh Standards Track [Page 11]
RFC 4837 Managed Objects of EPON July 2007
The registration process is defined in the diagram below:
OLT ONU
| |
| Discovery Gate message \|
|--------------------------------------------|
| /|
| |
|/ Register Request message |
|--------------------------------------------|
|\ |
| |
| Register message |
| (assigning LLID) \|
|--------------------------------------------|
| /|
| |
| Gate message \|
|--------------------------------------------|
| /|
| |
|/ Register ACK message |
|--------------------------------------------|
|\ |
| |
| |
A new ONU requests to register (sends a REG_REQUEST message) in a
special discovery grant, allocated for that by the OLT. During that
time, more than one ONU might try to register. A collision in
transmission might occur, as the RTT of the new ONUs is not yet
known. A random backoff mechanism of the transmission is used to
schedule the following registration requests to avoid these
collisions. When the OLT receives a REG_REQUEST message of an ONU
and approves this ONU, then it sends a REGISTER message to this ONU
defining its LLID. From that point, the ONU transmission is
scheduled by its LLID, knowing the RTT, and no collision can occur.
The ONU replies with a REGISTER_ACK message and the registration
process of the MPCP ends. Higher layer protocols may be needed to
authenticate the ONU and allow it to participate in the network.
2.2.7. Forward Error Correction (FEC)
The FEC is defined to enhance the link budget of the PON. As each
splitter attenuates the optical signal, the number of the splits and
the distance are limited by the link budget. Hence an FEC that
Khermosh Standards Track [Page 12]
RFC 4837 Managed Objects of EPON July 2007
improves the link budget has a benefit. The FEC code used is the
RS(239,255,8), similar to the FEC code in [ITU-T.G.975], improving
the BER from 1E-4 to 1E-12.
The FEC parity encapsulation is based on the framing of the Ethernet
packet. The Ethernet packets are spaced by MAC rate adaptation, and
the parity bytes are inserted after the packet in the provided space.
As the start and end of packet codewords also define the FEC
boundaries, and they are outside the FEC protection, they are
replaced by a series of symbols to reduce their vulnerability to
errors.
The following diagram presents an FEC-protected frame:
+-------------------------------------------------------------------+
| | | | | | | |
| S_FEC | Preamble/SFD | Frame | FCS | T_FEC | Parity | T_FEC |
| | | | | | | |
+-------------------------------------------------------------------+
The FEC is added in a separate layer between the PCS and PMA layers
of the [802.3].
The FEC layer introduces a fixed delay in receive path and transmit
path.
The FEC layer is optional.
2.3. Management Architecture
Each one of the EPON layers is accompanied by a management interface
that is controlled through clause 30 of the [802.3ah]. As the
[802.3ah] specification may be used for different applications, and
some of the clauses may be used separately, the IEEE management
clause allocates for each one of them a separate package. The MIB
document follows this partition.
Khermosh Standards Track [Page 13]
RFC 4837 Managed Objects of EPON July 2007
The following diagram presents the relation of the MIB groups to the
[802.3ah] layers:
+===========================+
| Higher layers |
+===========================+
| 802.1D Bridge |
+===========================+
|MAC client| ... |MAC client|
+===========================+ \ +=============================+
| MAC Control - (MPCP) |----- |MpcpObjects| ... |MpcpObjects|
+===========================+ / +=============================+
| MAC | ... | MAC |
+===========================+ \ +=============================+
| P2P Emulation (P2PE) |----- |OmpEmulat | |OmpEmulat |
+===========================+ / |ionObjects | ... |ionObjects |
| | +=============================+
| GMII |
| |
+===========================+
| PCS |
+===========================+ \ +=============================+
| FEC |----- |FecObjects | ... |FecObjects |
+===========================+ / +=============================+
| PMA |
+===========================+
| PMD |
+===========================+
| |
| MDI |
| |
/===============/
/ Media /
/===============/
The association is straightforward for the ONU interface. There is
one logical and one physical interface, and a single copy exists for
each layer that can be remotely queried by the OLT.
At the OLT there is a single physical interface and N virtual
interfaces for the virtual links of the ONUs (and another virtual
interface for the broadcast virtual link). As can be seen from the
layering diagram above, the MAC layer is virtually duplicated.
Therefore, in this document it was selected that the management of a
virtual interface is like a physical interface, an interface index is
allocated for each one of the virtual links, and an additional
interface index is allocated for the OLT.
Khermosh Standards Track [Page 14]
RFC 4837 Managed Objects of EPON July 2007
To illustrate the interface modeling consider two devices; the first
device has two physical interfaces, is typically located at a
consumer's site, and is called an "ONU modem".
An "ONU modem" is shown in the figure below:
--------
ONU interface | ONU | 10 megabit interface
--------------| modem |--------------------
---------
This device would have 3 entries in the IF table, and one IF stack
entry; for example:
ifIndex=1 - interface for 10 megabit interface
ifIndex=2 - interface for the optical interface
ifIndex=200 - interface for the ONU interface
And then in the IF stack table:
ifStackHigherLayer=200, ifStackLowerLayer=2 - map between the
physical and the ONU
The second device has three physical interfaces, is typically located
at the provider's site, and may be called a "headend".
A "headend" is shown in the figure below:
---------
1st OLT interface | Head | gigE interface
------------------| end |--------------------
| |
------------------| |
2nd OLT interface | |
---------
Khermosh Standards Track [Page 15]
RFC 4837 Managed Objects of EPON July 2007
This device would have 5 entries (when there are no attached ONUs) in
the IF table, for example:
ifIndex=1 - interface for gigE interface
ifIndex=2 - interface for 1st optical interface
ifIndex=3 - interface for 2nd optical interface
ifIndex=265535 - interface for the 1st OLT broadcast interface
ifIndex=365535 - interface for the 2nd OLT broadcast interface
And then in the IF stack table:
ifStackHigherLayer=265535, ifStackLowerLayer=2 - map between the 1st
physical and its broadcast interface
ifStackHigherLayer=365535, ifStackLowerLayer=3 - map between the 2nd
physical and its broadcast interface
If two ONUs connected to the first OLT interface, then for example,
the following entries would be added to the IF table:
ifIndex=200001 - interface for the 1st ONU of 1st OLT
ifIndex=200002 - interface for the 2nd ONU of 1st OLT
And in the IF stack table:
ifStackHigherLayer=200001, ifStackLowerLayer=2 - map between the 1st
physical and 1st ONU
ifStackHigherLayer=200002, ifStackLowerLayer=2 - map between the 1st
physical and 2nd ONU
For each physical interface, there would be an entry (ifIndex) in the
tables of the interface MIB module [RFC2863], MAU MIB module
[RFC4836], and Etherlike MIB module [RFC3635]. Additionally, there
would be entries (ifIndexes) for the virtual interfaces of the OLT
interface. The justification for the additional allocation of
indexes is that the virtual interfaces are quite well distinguished,
as they connect different physical ONUs from the OLT side. For
instance, there is a meaning for separate bad frames counter or bad
octets counter for each virtual link, as the ONUs can be differently
distanced. This is quite similar to a case of separate physical
interfaces.
Khermosh Standards Track [Page 16]
RFC 4837 Managed Objects of EPON July 2007
The same partition concept exists for the MIB module of this
document. Each row in the tables are indexed according to the
ifIndex; specifically, there is a row for each virtual link. There
are some control objects that are shared and are the same for the
virtual interfaces (and they should have the same value for each
ifIndex), but most of the objects have different values for N+1
logical interfaces at the OLT. This is done for each MIB group. It
is a bit different from the [802.3ah] layering diagram, which
presents the P2MP layer as a single layer, while duplicating the MAC
and MAC client layers (please see the diagram above). However, from
a management perspective, it is more convenient and neat to partition
the management of the layers for the virtual links, as the atomic
managed entity is the virtual link. It is also convenient to use the
interface index of the virtual link for that purpose, as it is
already used to index the rows of the virtual links at the Interface,
MAU, and etherLike interfaces MIBs.
3. MIB Structure
This document defines the DOT3 EPON MIB module. The DOT3 EPON MIB
module defines the objects used for management of the [802.3ah]
Point-to-Multipoint (P2MP) interfaces. These MIB objects are
included in four groups.
i) The Multi-Point Control Protocol (MPCP) MIB objects - MIB objects
related to [802.3ah], clause 64, Multi-Point Control Protocol
attributes. The following tables are presented in this group:
The dot3MpcpControlTable defines the objects used for the
configuration and status indication, which are per logical link, of
MPCP compliant interfaces.
The dot3MpcpStatTable defines the statistics objects that are per
logical link, of MPCP compliant interfaces.
The operational mode of an OLT/ONU for the tables is defined by the
dot3MpcpMode object in the dot3MpcpControlTable.
ii) The OMPEmulation MIB objects - MIB objects related to [802.3ah],
clause 65, point-to-point emulation attributes. The following tables
are presented in this group:
The dot3OmpEmulationTable defines the objects used for the
configuration and status indication, which are per logical links, of
OMPEmulation compliant interfaces.
The dot3OmpEmulationStatTable defines the statistics objects that are
per logical link, of OMPEmulation compliant interfaces.
Khermosh Standards Track [Page 17]
RFC 4837 Managed Objects of EPON July 2007
The operational mode of an OLT/ONU for the tables is defined by the
dot3OmpEmulationType object in the dot3OmpEmulationTable.
iii) The FEC MIB objects - MIB objects related to [802.3ah], clause
60 and clause 65, EPON FEC attributes. The following table is
presented in this group:
The dot3EponFecTable defines the objects used for the configuration
and status indication, which are per logical link, of FEC EPON
compliant interfaces.
iv) The EPON extended package MIB objects - MIB objects used for
configuration and status indication with extended capabilities of the
EPON interfaces. The following tables are presented in this group:
The dot3ExtPkgControlTable defines the objects, which are per logical
link, used for the configuration and status indication of EPON
compliant interfaces.
The dot3ExtPkgQueueTable defines the objects, which are per logical
link, and per queue, used for the configuration and status indication
of the ONU queues reported in the MPCP REPORT message, of EPON
compliant interfaces.
The dot3ExtPkgQueueSetsTable defines the objects, which are per
logical link, per queue, and per queue_set, used for the
configuration and status indication of the ONU queue_sets reported in
the MPCP REPORT message, of EPON compliant interfaces.
The dot3ExtPkgOptIfTable defines the objects, which are per logical
link, used for the control and status indication of the optical
interface of EPON compliant interfaces.
As described in the architecture section, each row in the tables is
indexed according to the ifIndex; specifically, there is a row for
each virtual link. There are a few control objects that are shared
and have the same value for the virtual interfaces (and they should
have the same value for each ifIndex), but most of the objects have
different values for N+1 logical interfaces at the OLT. This is done
for each MIB group. It is a bit different from the [802.3ah]
layering diagram, which presents the P2MP layer as a single layer
while duplicating the MAC and MAC client layers. However, from a
management perspective, it is more convenient and neat to partition
the management of the layers for the virtual links, as the atomic
managed entity is the virtual link. It is also convenient to use the
interface index of the virtual link for that purpose, as it is
already used to index the rows of the virtual links at the Interface,
MAU, and etherLike interfaces MIBs.
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RFC 4837 Managed Objects of EPON July 2007
For example, provided below are the values of the MPCP control table
of an OLT with 3 registered ONUs:
The table below presents the MPCP control table of ONU1 in working
mode. A single row exists in the table.
+---------------------------+-----------------+
| MPCP control MIB object | Value |
+---------------------------+-----------------+
| ifIndex | 100 |
| dot3MpcpOperStatus | true |
| dot3MpcpAdminState | true |
| dot3MpcpMode | onu |
| dot3MpcpSyncTime | 25 |
| dot3MpcpLinkID | 1 |
| dot3MpcpRemoteMACAddress | OLT_MAC_Address |
| dot3MpcpRegistrationState | registered |
| dot3MpcpTransmitElapsed | 10 |
| dot3MpcpReceiveElapsed | 10 |
| dot3MpcpRoundTripTime | 100 |
+---------------------------+-----------------+
Table 1
OLT_MAC_Address is the MAC address of the OLT EPON interface.
The creation of the rows of the ONU interface is done at
initialization.
For example, provided below are the values for the MPCP control table
of the ONU, after initialization, before registration.
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RFC 4837 Managed Objects of EPON July 2007
The table below presents the MPCP control table of ONU1 after
initialization. A single row exists in the table.
+---------------------------+-------------------+
| MPCP control MIB object | Value |
+---------------------------+-------------------+
| ifIndex | 100 |
| dot3MpcpOperStatus | true |
| dot3MpcpAdminState | true |
| dot3MpcpMode | onu |
| dot3MpcpSyncTime | 0 |
| dot3MpcpLinkID | 0 |
| dot3MpcpRemoteMACAddress | 00:00:00:00:00:00 |
| dot3MpcpRegistrationState | unregistered |
| dot3MpcpTransmitElapsed | 0 |
| dot3MpcpReceiveElapsed | 0 |
| dot3MpcpRoundTripTime | 0 |
+---------------------------+-------------------+
Table 2
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RFC 4837 Managed Objects of EPON July 2007
The table below presents the MPCP control table of the OLT in working
mode. Four rows exist in the table associated with the virtual
links.
+----------------+-----------+------------+------------+------------+
| MPCP control | Value | Value | Value | Value |
| MIB object | | | | |
+----------------+-----------+------------+------------+------------+
| ifIndex | 100001 | 100002 | 100003 | 165535 |
| dot3MpcpOperSt | true | true | true | true |
| atus | | | | |
| dot3MpcpAdminS | true | true | true | true |
| tate | | | | |
| dot3MpcpMode | olt | olt | olt | olt |
| dot3MpcpSyncTi | 25 | 25 | 25 | 25 |
| me | | | | |
| dot3MpcpLinkID | 1 | 2 | 3 | 65535 |
| dot3MpcpRemote | ONU1_MAC_ | ONU2_MAC_A | ONU3_MAC_A | BRCT_MAC_A |
| MACAddress | Address | ddress | ddress | ddress |
| dot3MpcpRegist | registere | registered | registered | registered |
| rationState | d | | | |
| dot3MpcpTransm | 10 | 10 | 10 | 10 |
| itElapsed | | | | |
| dot3MpcpReceiv | 10 | 10 | 10 | 10 |
| eElapsed | | | | |
| dot3MpcpRoundT | 100 | 60 | 20 | 0 |
| ripTime | | | | |
+----------------+-----------+------------+------------+------------+
Table 3
ONU1_MAC_Address is the MAC address of ONU1 EPON interface.
ONU2_MAC_Address is the MAC address of ONU2 EPON interface.
ONU3_MAC_Address is the MAC address of ONU3 EPON interface.
BRCT_MAC_Address is the MAC address of the broadcast EPON interface,
which is the OLT MAC address.
The creation of the rows of the OLT interface and the broadcast
virtual interface is done at initialization.
The creation of rows of the virtual interfaces at the OLT is done
when the link is established (ONU registers) and the deletion is done
when the link is deleted (ONU deregisters).
Khermosh Standards Track [Page 21]
RFC 4837 Managed Objects of EPON July 2007
For example, provided below are the values of the MPCP control table
of the OLT after initialization, before the ONUs register.
The table below presents the MPCP control table of the OLT after
initialization. A single row exists in this table associated with
the virtual broadcast link.
+---------------------------+------------------+
| MPCP control MIB object | Value |
+---------------------------+------------------+
| ifIndex | 165535 |
| dot3MpcpOperStatus | true |
| dot3MpcpAdminState | true |
| dot3MpcpMode | olt |
| dot3MpcpSyncTime | 25 |
| dot3MpcpLinkID | 65535 |
| dot3MpcpRemoteMACAddress | BRCT_MAC_Address |
| dot3MpcpRegistrationState | registered |
| dot3MpcpTransmitElapsed | 10 |
| dot3MpcpReceiveElapsed | 100000 |
| dot3MpcpRoundTripTime | 0 |
+---------------------------+------------------+
Table 4
BRCT_MAC_Address is the MAC address of the broadcast EPON interface,
which is the OLT MAC address.
4. Relation to Other MIB Modules
4.1. Relation to the Interfaces MIB and Ethernet-like Interfaces MIB
EPON interface is a kind of Ether-like interface. This MIB module
extends the objects of the Interface MIB and the Ether-like
Interfaces MIB for an EPON type interface.
Implementing this module therefore MUST require implementation of the
Interfaces MIB module [RFC2863] and the Ethernet-like Interfaces MIB
module [RFC3635].
Thus, each managed EPON interface would have a corresponding entry in
the mandatory tables of the Ether-like MIB module found in [RFC3635],
and likewise in the tables of the Interface MIB module found in
[RFC2863]. Also each managed virtual EPON interface would have a
corresponding entry in the mandatory tables of the Ether-like MIB
module found in [RFC3635], and likewise in the tables of the
Interface MIB module found in [RFC2863] with a dedicated ifIndex for
this interface.
Khermosh Standards Track [Page 22]
RFC 4837 Managed Objects of EPON July 2007
In this document, there is no replication of the objects from these
MIBs. Therefore, for instance, the document is defining
dot3MpcpRemoteMACAddress only while assuming that the local MAC
address object is already defined in [RFC3635].
The interface MIB module [RFC2863] defines the interface index
(ifIndex). Interface Index, as specified in [RFC2863], is used in
this MIB Module as an index to the EPON MIB tables. The ifIndex is
used to denote the physical interface and the virtual link interfaces
at the OLT. The OLT interface and the virtual link interfaces are
stacked using the ifStack table defined in [RFC2863], and the
ifInvStack defined in [RFC2864]. The OLT interface is the lower
layer of all other interfaces associated with the virtual links.
This document defines the specific EPON objects of an ONU interface
and an OLT interface. Information in the tables is per LLID. The
rows in the EPON MIB tables referring to the LLIDs are denoted with
the corresponding ifIndexes of the virtual link interfaces.
Please note that each virtual interface does not have a different
physical MAC address at the OLT, as the physical interface is the
same. It is specified in the [802.3ah], Section 64.1.2. The
corresponding object of the Ether-like interface MIB is duplicated
for all the virtual interfaces.
For example, the values of the Interface MIB objects are presented in
the following tables, for an OLT with 3 registered ONUs:
Khermosh Standards Track [Page 23]
RFC 4837 Managed Objects of EPON July 2007
The table below presents the objects of the Interface MIB of an ONU
in working mode.
+----------------------+--------------------------------+
| Interface MIB object | Value |
+----------------------+--------------------------------+
| ifIndex | 1 |
| ifDescr | "interface description" |
| ifType | ethernetCsmacd (6) 1000base-Px |
| ifMtu | MTU size (1522) |
| ifSpeed | 1000000000 |
| ifPhysAddress | ONU_MAC_Address |
| ifAdminStatus | up |
| ifOperStatus | Up |
| ifLastChange | ONUup_time |
| ifInOctets | ONU_octets_number |
| ifInUcastPkts | ONU_unicast_frame_number |
| ifInNUcastPkts | ONU_non_unicast_frame_number |
| ifInDiscards | ONU_discard_frame_number |
| ifInErrors | ONU_error_frame_number |
| ifInUnknownProtos | ONU_unknown_frame_number |
| ifOutOctets | ONU_octets_number |
| ifOutUcastPkts | ONU_unicast_frame_number |
| ifOutNUcastPkts | ONU_non_unicast_frame_number |
| ifOutDiscards | ONU_discard_frame_number |
| ifOutErrors | ONU_error_frame_number |
| ifOutQLen | ONU_queue_frame_number |
+----------------------+--------------------------------+
Table 5
ONU_MAC_Address is the MAC address of the ONU EPON interface.
Khermosh Standards Track [Page 24]
RFC 4837 Managed Objects of EPON July 2007
The table below presents the objects of the Interface MIB of the ONU
interface.
+----------------------+--------------------------------+
| Interface MIB object | Value |
+----------------------+--------------------------------+
| ifIndex | 100 |
| ifDescr | "interface description" |
| ifType | ethernetCsmacd (6) 1000base-Px |
| ifMtu | MTU size (1522) |
| ifSpeed | 1000000000 |
| ifPhysAddress | ONU_MAC_Address |
| ifAdminStatus | up |
| ifOperStatus | Up |
| ifLastChange | up_time |
| ifInOctets | ONU1_octets_number |
| ifInUcastPkts | ONU1_unicast_frame_number |
| ifInNUcastPkts | ONU1_non_unicast_frame_number |
| ifInDiscards | ONU1_discard_frame_number |
| ifInErrors | ONU1_error_frame_number |
| ifInUnknownProtos | ONU1_unknown_frame_number |
| ifOutOctets | ONU1_octets_number |
| ifOutUcastPkts | ONU1_unicast_frame_number |
| ifOutNUcastPkts | ONU1_non_unicast_frame_number |
| ifOutDiscards | ONU1_discard_frame_number |
| ifOutErrors | ONU1_error_frame_number |
| ifOutQLen | ONU1_queue_frame_number |
+----------------------+--------------------------------+
Table 6
ONU_MAC_Address is the MAC address of the ONU EPON interface.
The following values will be set in the ifStack and ifInvStack tables
related to this example.
ifStackTable:
ifStackHigherLayer=100, ifStackLowerLayer=1 - map between the
physical interface and the ONU
ifInvStackTable:
ifStackLowerLayer=1, ifStackHigherLayer=100,- map between the ONU and
the physical interface
Khermosh Standards Track [Page 25]
RFC 4837 Managed Objects of EPON July 2007
The table below presents the Interface MIB objects of an OLT
interface.
+----------------------+--------------------------------+
| Interface MIB object | Value |
+----------------------+--------------------------------+
| ifIndex | 2 |
| ifDescr | "interface description" |
| ifType | ethernetCsmacd (6) 1000base-Px |
| ifMtu | MTU size (1522) |
| ifSpeed | 1000000000 |
| ifPhysAddress | OLT_MAC_Address |
| ifAdminStatus | up |
| ifOperStatus | Up |
| ifLastChange | OLTup_time |
| ifInOctets | OLT_octets_number |
| ifInUcastPkts | OLT_unicast_frame_number |
| ifInNUcastPkts | OLT_non_unicast_frame_number |
| ifInDiscards | OLT_discard_frame_number |
| ifInErrors | OLT_error_frame_number |
| ifInUnknownProtos | OLT_unknown_frame_number |
| ifOutOctets | OLT_octets_number |
| ifOutUcastPkts | OLT_unicast_frame_number |
| ifOutNUcastPkts | OLT_non_unicast_frame_number |
| ifOutDiscards | OLT_discard_frame_number |
| ifOutErrors | OLT_error_frame_number |
| ifOutQLen | OLT_queue_frame_number |
+----------------------+--------------------------------+
Table 7
OLT_MAC_Address is the MAC address of the OLT EPON interface.
Khermosh Standards Track [Page 26]
RFC 4837 Managed Objects of EPON July 2007
The table below presents the Interface MIB objects of an OLT
interface, associated with the virtual link interfaces.
+----------+-------------+-------------+-------------+--------------+
| Interfac | Value | Value | Value | Value |
| eMIB | | | | |
| object | | | | |
+----------+-------------+-------------+-------------+--------------+
| ifIndex | 200001 | 200002 | 200003 | 265535 |
| ifDescr | "interface | "interface | "interface | "interface |
| | description | description | description | description" |
| | " | " | " | |
| ifType | ethernetCsm | ethernetCsm | ethernetCsm | ethernetCsma |
| | acd (6) | acd (6) | acd (6) | cd (6) |
| ifMtu | MTUsize(152 | MTUsize(152 | MTUsize(152 | MTUsize(1522 |
| | 2) | 2) | 2) | ) |
| ifSpeed | 1000000000 | 1000000000 | 1000000000 | 1000000000 |
| ifPhysAd | OLT_MAC_Add | OLT_MAC_Add | OLT_MAC_Add | OLT_MAC_Addr |
| dress | ress | ress | ress | ess |
| ifAdminS | up | up | up | up |
| tatus | | | | |
| ifOperSt | Up | Up | Up | Up |
| atus | | | | |
| ifLastCh | ONU1_up_tim | ONU2_up_tim | ONU3_up_tim | up_time |
| ange | e | e | e | |
| ifInOcte | ONU1_octets | ONU2_octets | ONU3_octets | BRCT_octets_ |
| ts | _number | _number | _number | number |
| ifInUcas | ONU1_unic_f | ONU2_unic_f | ONU3_unic_f | BRCT_unic_fr |
| tPkts | rame_num | rame_num | rame_num | ame_num |
| ifInNUca | ONU1_non_un | ONU2_non_un | ONU3_non_un | BRCT_non_uni |
| stPkts | ic_frame_nu | ic_frame_nu | ic_frame_nu | c_frame_num |
| | m | m | m | |
| ifInDisc | ONU1_disc_f | ONU2_disc_f | ONU3_disc_f | BRCT_disc_fr |
| ards | rame_num | rame_num | rame_num | ame_numr |
| ifInErro | ONU1_err_fr | ONU2_err_fr | ONU3_err_fr | BRCT_err_fra |
| rs | ame_num | ame_num | ame_num | me_num |
| ifInUnkn | ONU1_unknw_ | ONU2_unknw_ | ONU3_unknw_ | BRCT_unknw_f |
| ownProto | frame_num | frame_num | frame_num | rame_num |
| s | | | | |
| ifOutOct | ONU1_octets | ONU2_octets | ONU3_octets | BRCT_octets_ |
| ets | _number | _number | _number | number |
| ifOutUca | ONU1_unic_f | ONU2_unic_f | ONU3_unic_f | BRCT_unic_fr |
| stPkts | rame_num | rame_num | rame_num | ame_num |
| ifOutNUc | ONU1_non_un | ONU2_non_un | ONU3_non_un | BRCT_non_uni |
| astPkts | ic_frame_nu | ic_frame_nu | ic_frame_nu | c_frame_num |
| | m | m | m | |
Khermosh Standards Track [Page 27]
RFC 4837 Managed Objects of EPON July 2007
+----------+-------------+-------------+-------------+--------------+
| Interfac | Value | Value | Value | Value |
| eMIB | | | | |
| object | | | | |
+----------+-------------+-------------+-------------+--------------+
| ifOutDis | ONU1_disc_f | ONU2_disc_f | ONU3_disc_f | BRCT_disc_fr |
| cards | rame_num | rame_num | rame_num | ame_num |
| ifOutErr | ONU1_err_fr | ONU2_err_fr | ONU3_err_fr | BRCT_err_fra |
| ors | ame_num | ame_num | ame_num | me_num |
| ifOutQLe | ONU1_queue_ | ONU2_queue_ | ONU3_queue_ | BRCt_queue_f |
| n | frame_num | frame_num | frame_num | rame_num |
+----------+-------------+-------------+-------------+--------------+
Table 8
OLT_MAC_Address is the MAC address of the OLT EPON interface.
The following values will be set in the ifStack and ifInvStack tables
related to this example:
ifStackTable:
ifStackHigherLayer=265535, ifStackLowerLayer=2 - map between the OLT
physical interface and its broadcast virtual interface
ifStackHigherLayer=200001, ifStackLowerLayer=2 - map between the OLT
physical interface and its virtual interface of the 1st ONU
ifStackHigherLayer=200002, ifStackLowerLayer=2 - map between the OLT
physical interface and its virtual interface of the 2nd ONU
ifStackHigherLayer=200003, ifStackLowerLayer=2 - map between the OLT
physical interface and its virtual interface of the 3rd ONU
ifInvStackTable:
ifStackLowerLayer=2, ifStackHigherLayer=265535, - map between the
broadcast interface of the OLT and the OLT physical interface
ifStackLowerLayer=2, ifStackHigherLayer=200001 - map between the OLT
virtual interface of the 1st ONU and the OLT physical interface
ifStackLowerLayer=2, ifStackHigherLayer=200002 - map between the OLT
virtual interface of the 2nd ONU and the OLT physical interface
ifStackLowerLayer=2, ifStackHigherLayer=200003 - map between the OLT
virtual interface of the 3rd ONU and the OLT physical interface
Khermosh Standards Track [Page 28]
RFC 4837 Managed Objects of EPON July 2007
The rows for the ONU interface, the OLT interface, and the OLT
broadcast interface are created in initialization.
The creation of a row for a virtual link is done when the virtual
link is established (ONU registers), and deletion is done when the
virtual link is deleted (ONU deregisters).
The EPON MIB module also extends the Interface MIB module with a set
of counters, which are specific for the EPON interface. The EPON MIB
module implements the same handling of the counters when the
operation of the interface starts or stops. The interface MIB
document describes the possible behavior of counters when an
interface is re-initialized using the ifCounterDiscontinuityTime
indicator, indicating the discontinuity of the counters. Please see
[RFC2863], Section 3.1.5, page 11 for more information. The counters
of the EPON MIB should be handled in a similar manner.
4.2. Relation to the IEEE 802.3 MAU MIBs
The MAU types of the EPON Interface are defined in the amended MAU
MIB document. This document assumes the implementation of the MAU
MIB for this purpose and does not repeat the EPON MAU types.
Therefore, implementing this module MUST require implementation of
the MAU-MIB module [RFC4836].
The handling of the ifMAU tables for the EPON case is similar to the
handling described in the former section for the Interface and Ether-
like interface MIBs. A single row exists for the ONU in the
ifMauTable. A row for each virtual link (N+1 rows) exists at the
OLT, with a separate value of ifMauIfIndex for each virtual link.
As specified above, the rows for the ONU interface, the OLT
interface, and the OLT broadcast interface are created in
initialization.
The creation of a row for a virtual link is done when the virtual
link is established (ONU registers), and deletion is done when the
virtual link is deleted (ONU deregisters).
4.3. Relation to the EFM OAM MIB
The EPON interfaces are aimed to the optical access networks and most
probably will be accompanied with the implementation of the OAM
section of the [802.3ah]. Therefore, the EFM OAM MIB module
[RFC4878] MAY be implemented when this MIB module is implemented
defining managed objects for the OAM layer that are complementary to
the EFM EPON MIB module. As the OAM is defined for a point-to-point
link it is implemented in this case using the virtual links that are
Khermosh Standards Track [Page 29]
RFC 4837 Managed Objects of EPON July 2007
defined for the P2MP network, so that an instance is held for each
Logical Link Identifier (LLID) of the EPON. The corresponding
ifIndex of the virtual link is used as the ifIndex of the tables of
the OAM MIB module for this purpose.
4.4. Relation to the Bridge MIB
It is very probable that an EPON OLT will implement a bridging
functionality above the EPON interface layer, bridging between the
EPON users and the network. Bridge functionality is specified at
[802.1d]. In this scenario, the virtual ports of the EPON are
corresponding to the virtual bridge ports. There is a direct mapping
between the bridge ports and the LLIDs, which are virtual EPON
channels.
Therefore, the bridge MIB modules ([RFC4188] and [RFC1525]) MAY be
implemented when the EFM EPON MIB module is implemented for an EPON
OLT, defining managed objects for the bridge layer.
The values of dot1dBasePortIfIndex would correspond to the ifIndex of
the virtual port (1 for LLID1, 2 for LLID2, etc.).
The broadcast virtual EPON interface of the OLT has no direct mapping
to a virtual bridge port as it is not port specific but used for
broadcast traffic.
Khermosh Standards Track [Page 30]
RFC 4837 Managed Objects of EPON July 2007
5. Mapping of IEEE 802.3ah Managed Objects
This section contains the mapping between the managed objects defined
in this document and the attributes defined in [802.3ah], clause 30.
The tables are divided into relevant groups.
oMPCP managed object class (30.3.5)
+----------------------------+-------------------------+------------+
| dot3EPON MIB module object | IEEE802.3ah attribute | Reference |
+----------------------------+-------------------------+------------+
| ifIndex | aMPCPID | 30.3.5.1.1 |
| dot3MpcpOperStatus | aMPCPAdminState | 30.3.5.1.2 |
| dot3MpcpMode | aMPCPMode | 30.3.5.1.3 |
| dot3MpcpLinkID | aMPCPLinkID | 30.3.5.1.4 |
| dot3MpcpRemoteMACAddress | aMPCPRemoteMACAddress | 30.3.5.1.5 |
| dot3MpcpRegistrationState | aMPCPRegistrationState | 30.3.5.1.6 |
| dot3MpcpMACCtrlFramesTrans | aMPCPMACCtrlFramesTrans | 30.3.5.1.7 |
| mitted | mitted | |
| dot3MpcpMACCtrlFramesRecei | aMPCPMACCtrlFramesRecei | 30.3.5.1.8 |
| ved | ved | |
| dot3MpcpTxGate | aMPCPTxGate | 30.3.5.1.9 |
| dot3MpcpTxRegAck | aMPCPTxRegAck | 30.3.5.1.1 |
| | | 0 |
| dot3MpcpTxRegister | aMPCPTxRegister | 30.3.5.1.1 |
| | | 1 |
| dot3MpcpTxRegRequest | aMPCPTxRegRequest | 30.3.5.1.1 |
| | | 2 |
| dot3MpcpTxReport | aMPCPTxReport | 30.3.5.1.1 |
| | | 3 |
| dot3MpcpRxGate | aMPCPRxGate | 30.3.5.1.1 |
| | | 4 |
| dot3MpcpRxRegAck | aMPCPRxRegAck | 30.3.5.1.1 |
| | | 5 |
| dot3MpcpRxRegister | aMPCPRxRegister | 30.3.5.1.1 |
| | | 6 |
| dot3MpcpRxRegRequest | aMPCPRxRegRequest | 30.3.5.1.1 |
| | | 7 |
| dot3MpcpRxReport | aMPCPRxReport | 30.3.5.1.1 |
| | | 8 |
| dot3MpcpTransmitElapsed | aMPCPTransmitElapsed | 30.3.5.1.1 |
| | | 9 |
| dot3MpcpReceiveElapsed | aMPCPReceiveElapsed | 30.3.5.1.2 |
| | | 0 |
| dot3MpcpRoundTripTime | aMPCPRoundTripTime | 30.3.5.1.2 |
| | | 1 |
| dot3MpcpDiscoveryWindowsSe | aMPCPDiscoveryWindowsSe | 30.3.5.1.2 |
| nt | nt | 2 |
Khermosh Standards Track [Page 31]
RFC 4837 Managed Objects of EPON July 2007
+----------------------------+-------------------------+------------+
| dot3EPON MIB module object | IEEE802.3ah attribute | Reference |
+----------------------------+-------------------------+------------+
| dot3MpcpDiscoveryTimeout | aMPCPDiscoveryTimeout | 30.3.5.1.2 |
| | | 3 |
| dot3MpcpMaximumPendingGran | aMPCPMaximumPendingGran | 30.3.5.1.2 |
| ts | ts | 4 |
| dot3MpcpAdminState | aMPCPAdminControl | 30.3.5.2.1 |
| dot3MpcpSyncTime | SyncTime | 64.3.3.2 |
+----------------------------+-------------------------+------------+
Table 9
oOMPEmulation managed object class (30.3.7)
+-------------------------------------+-----------------+-----------+
| dot3EPON MIB module object | IEEE802.3ah | Reference |
| | attribute | |
+-------------------------------------+-----------------+-----------+
| ifIndex | aOMPEmulationID | 30.3.7.1. |
| | | 1 |
| dot3OmpEmulationType | aOMPEmulationTy | 30.3.7.1. |
| | pe | 2 |
| dot3OmpEmulationSLDErrors | aSLDErrors | 30.3.7.1. |
| | | 3 |
| dot3OmpEmulationCRC8Errors | aCRC8Errors | 30.3.7.1. |
| | | 4 |
| dot3OmpEmulationGoodLLID | aGoodLLID | 30.3.7.1. |
| | | 5 |
| dot3OmpEmulationOnuPonCastLLID | aONUPONcastLLID | 30.3.7.1. |
| | | 6 |
| dot3OmpEmulationOltPonCastLLID | aOLTPONcastLLID | 30.3.7.1. |
| | | 7 |
| dot3OmpEmulationBadLLID | aBadLLID | 30.3.7.1. |
| | | 8 |
| dot3OmpEmulationBroadcastBitNotOnuL | | |
| Lid | | |
| dot3OmpEmulationOnuLLIDNotBroadcast | | |
| dot3OmpEmulationBroadcastBitPlusOnu | | |
| Llid | | |
| dot3OmpEmulationNotBroadcastBitNotO | | |
| nuLlid | | |
+-------------------------------------+-----------------+-----------+
Table 10
Khermosh Standards Track [Page 32]
RFC 4837 Managed Objects of EPON July 2007
oMAU managed object class (30.5.1)
+--------------------------------+---------------------+------------+
| dot3EPON MIB module object | IEEE802.3ah | Reference |
| | attribute | |
+--------------------------------+---------------------+------------+
| dot3EponFecPCSCodingViolation | aPCSCodingViolation | 30.5.1.1.1 |
| | | 2 |
| dot3EponFecAbility | aFECAbility | 30.5.1.1.1 |
| | | 3 |
| dot3EponFecMode | aFECmode | 30.5.1.1.1 |
| | | 4 |
| dot3EponFecCorrectedBlocks | aFECCorrectedBlocks | 30.5.1.1.1 |
| | | 5 |
| dot3EponFecUncorrectableBlocks | aFECUncorrectableBl | 30.5.1.1.1 |
| | ocks | 6 |
| dot3EponFecBufferHeadCodingVio | | |
| lation | | |
+--------------------------------+---------------------+------------+
Table 11
6. Definitions - The DOT3 EPON MIB Module
DOT3-EPON-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, mib-2, OBJECT-TYPE, Counter32,
Integer32, Unsigned32, Counter64
FROM SNMPv2-SMI
TruthValue, MacAddress
FROM SNMPv2-TC
ifIndex
FROM IF-MIB
MODULE-COMPLIANCE, OBJECT-GROUP
FROM SNMPv2-CONF
;
dot3EponMIB MODULE-IDENTITY
LAST-UPDATED "200703290000Z" -- March 29, 2007
ORGANIZATION "IETF Ethernet Interfaces and Hub MIB Working
Group"
CONTACT-INFO
"WG charter:
http://www.ietf.org/html.charters/hubmib-charter.html
Mailing Lists:
General Discussion: hubmib@ietf.org
To Subscribe: hubmib-request@ietf.org
Khermosh Standards Track [Page 33]
RFC 4837 Managed Objects of EPON July 2007
In Body: subscribe your_email_address
Chair: Bert Wijnen
Postal: Lucent Technologies
Schagen 33
3461 GL Linschoten
Netherlands
Tel: +31-348-407-775
E-mail: bwijnen@lucent.com
Editor: Lior Khermosh
Postal: PMC-SIERRA
Kohav Hertzelia bldg,
4 Hasadnaot St.
Hertzliya Pituach 46120,
ISRAEL
P.O.Box 2089 Hertzliya Pituach 46120 Israel
Tel: +972-9-9628000 Ext: 302
E-mail: lior_khermosh@pmc-sierra.com"
DESCRIPTION
"The objects in this MIB module are used to manage the
Ethernet in the First Mile (EFM) Ethernet Passive Optical
Network (EPON) Interfaces as defined in IEEE P802.3ah
clauses 60, 64, and 65.
The following reference is used throughout this MIB module:
[802.3ah] refers to:
Information technology - Telecommunications and
information exchange between systems - Local and
metropolitan area networks - Specific requirements -
Part 3: Carrier sense multiple access with collision
detection (CSMA/CD) access method and physical layer
specifications - Media Access Control Parameters,
Physical Layers and Management Parameters for subscriber
access networks. IEEE Std 802.3ah-2004, October 2004.
Of particular interest are clause 64 (Multi-Point Control
Protocol - MPCP), clause 65 (Point-to-Multipoint
Reconciliation Sublayer - P2MP RS), clause 60 (Ethernet
Passive Optical Network Physical Medium Dependent - EPON
PMDs), clause 30, 'Management', and clause 45, 'Management
Data Input/Output (MDIO) Interface'.
Copyright (C) The IETF Trust (2007). This version
of this MIB module is part of 4837; see the RFC itself for
full legal notices.
Key abbreviations:
BER - Bit Error Rate
BW - bandwidth
Khermosh Standards Track [Page 34]
RFC 4837 Managed Objects of EPON July 2007
CRC - Cyclic Redundancy Check
EFM - Ethernet First Mile
EPON - Ethernet Passive Optical Network
FEC - Forward Error Correction
LLID - Logical Link Identifier
MAC - Media Access Control
Mbps - Megabit per second
MDIO - Management Data Input/Output
MPCP - Multi-Point Control Protocol
OLT - Optical Line Terminal (Server unit of the EPON)
OMP - Optical Multi-Point
ONU - Optical Network Unit (Client unit of the EPON)
P2MP - Point-to-Multipoint
PHY - Physical Layer
PMD - Physical Medium Dependent
PON - Passive Optical Network
RTT - Round Trip Time
SLD - Start of LLID Delimiter
TQ - Time Quanta
"
REVISION "200703290000Z" -- March 29, 2007
DESCRIPTION "Initial version, published as RFC 4837."
::= { mib-2 155 }
dot3EponObjects OBJECT IDENTIFIER ::= { dot3EponMIB 1}
dot3EponConformance OBJECT IDENTIFIER ::= { dot3EponMIB 2}
-- MPCP MIB modules definitions ([802.3ah], clause 30.3.5)
dot3EponMpcpObjects
OBJECT IDENTIFIER ::= { dot3EponObjects 1 }
dot3MpcpControlTable OBJECT-TYPE
SYNTAX SEQUENCE OF Dot3MpcpControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A Table of dot3 Multi-Point Control Protocol (MPCP)
MIB objects. The entries in the table are control and
status objects of the MPCP.
Each object has a row for every virtual link denoted by
the corresponding ifIndex.
The LLID field, as defined in the [802.3ah], is a 2-byte
register (15-bit field and a broadcast bit) limiting the
number of virtual links to 32768. Typically the number
Khermosh Standards Track [Page 35]
RFC 4837 Managed Objects of EPON July 2007
of expected virtual links in a PON is like the number of
ONUs, which is 32-64, plus an additional entry for
broadcast LLID (with a value of 0xffff)."
::= { dot3EponMpcpObjects 1 }
dot3MpcpControlEntry OBJECT-TYPE
SYNTAX Dot3MpcpControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the dot3 MPCP Control table.
Rows exist for an OLT interface and an ONU interface.
A row in the table is denoted by the ifIndex of the link
and it is created when the ifIndex is created.
The rows in the table for an ONU interface are created
at system initialization.
The row in the table corresponding to the OLT ifIndex
and the row corresponding to the broadcast virtual link
are created at system initialization.
A row in the table corresponding to the ifIndex of a
virtual links is created when a virtual link is
established (ONU registers) and deleted when the virtual
link is deleted (ONU deregisters)."
INDEX { ifIndex }
::= { dot3MpcpControlTable 1}
Dot3MpcpControlEntry ::=
SEQUENCE {
dot3MpcpOperStatus TruthValue,
dot3MpcpAdminState TruthValue,
dot3MpcpMode INTEGER,
dot3MpcpSyncTime Unsigned32,
dot3MpcpLinkID Unsigned32,
dot3MpcpRemoteMACAddress MacAddress,
dot3MpcpRegistrationState INTEGER,
dot3MpcpTransmitElapsed Unsigned32,
dot3MpcpReceiveElapsed Unsigned32,
dot3MpcpRoundTripTime Unsigned32,
dot3MpcpMaximumPendingGrants Unsigned32
}
dot3MpcpOperStatus OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object reflects the operational state of the
Multi-Point MAC Control sublayer as defined in
Khermosh Standards Track [Page 36]
RFC 4837 Managed Objects of EPON July 2007
[802.3ah], clause 64. When the value is true(1), the
interface will act as if the Multi-Point Control Protocol
is enabled. When the value is false(2), the interface
will act as if the Multi-Point Control Protocol is
disabled. The operational state can be changed using the
dot3MpcpAdminState object.
This object is applicable for an OLT, with the same
value for all virtual interfaces, and for an ONU."
REFERENCE "[802.3ah], 30.3.5.1.2."
::= { dot3MpcpControlEntry 1 }
dot3MpcpAdminState OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object is used to define the admin state of the
Multi-Point MAC Control sublayer, as defined in
[802.3ah], clause 64, and to reflect its state.
When selecting the value as true(1), the Multi-Point
Control Protocol of the interface is enabled.
When selecting the value as false(2), the Multi-Point
Control Protocol of the interface is disabled.
This object reflects the administrative state of the
Multi-Point Control Protocol of the interface.
The write operation is not restricted in this document
and can be done at any time. Changing
dot3MpcpAdminState state can lead to disabling the
Multi-Point Control Protocol on the respective interface,
leading to the interruption of service for the users
connected to the respective EPON interface.
This object is applicable for an OLT, with the same
value for all virtual interfaces, and for an ONU."
REFERENCE "[802.3ah], 30.3.5.2.1."
DEFVAL { false }
::= { dot3MpcpControlEntry 2 }
dot3MpcpMode OBJECT-TYPE
SYNTAX INTEGER {
olt(1),
onu(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object is used to identify the operational
state of the Multi-Point MAC Control sublayer as
defined in [802.3ah], clause 64. Reading olt(1) for an
Khermosh Standards Track [Page 37]
RFC 4837 Managed Objects of EPON July 2007
OLT (server) mode and onu(2) for an ONU (client) mode.
This object is used to identify the operational mode
for the MPCP tables.
This object is applicable for an OLT, with the same
value for all virtual interfaces, and for an ONU."
REFERENCE "[802.3ah], 30.3.5.1.3."
DEFVAL { olt }
::= { dot3MpcpControlEntry 3 }
dot3MpcpSyncTime OBJECT-TYPE
SYNTAX Unsigned32
UNITS "TQ (16nsec)"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An object that reports the 'sync lock time' of the
OLT receiver in increments of Time Quanta (TQ)-16ns
as defined in [802.3ah], clauses 60, 64, and 65. The
value returned shall be (sync lock time ns)/16. If
this value exceeds (2^32-1), the value (2^32-1) shall
be returned. This object is applicable for an OLT,
with the same value for all virtual interfaces, and
for an ONU."
REFERENCE "[802.3ah], 64.3.3.2."
::= { dot3MpcpControlEntry 4 }
dot3MpcpLinkID OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An object that identifies the Logical Link
Identifier (LLID) associated with the MAC of the virtual
link as specified in [802.3ah], clause 65.1.3.2.2.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
The ONU and the corresponding virtual MAC of the OLT,
for the same virtual link, have the same value.
Value is assigned when the ONU registers.
Value is freed when the ONU deregisters."
REFERENCE "[802.3ah], 30.3.5.1.4."
::= { dot3MpcpControlEntry 5 }
dot3MpcpRemoteMACAddress OBJECT-TYPE
SYNTAX MacAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
Khermosh Standards Track [Page 38]
RFC 4837 Managed Objects of EPON July 2007
"An object that identifies the source_address
parameter of the last MPCPDUs passed to the MAC Control.
This value is updated on reception of a valid frame with
1) a destination Field equal to the reserved multicast
address for MAC Control as specified in [802.3], Annex
31A; 2) the lengthOrType field value equal to the reserved
Type for MAC Control as specified in [802.3], Annex
31A; 3) an MPCP subtype value equal to the subtype
reserved for MPCP as specified in [802.3ah], Annex 31A.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
The value reflects the MAC address of the remote entity
and therefore the OLT holds a value for each LLID, which
is the MAC address of the ONU; the ONU has a single
value that is the OLT MAC address."
REFERENCE "[802.3ah], 30.3.5.1.5."
::= { dot3MpcpControlEntry 6 }
dot3MpcpRegistrationState OBJECT-TYPE
SYNTAX INTEGER {
unregistered(1),
registering(2),
registered(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An object that identifies the registration state
of the Multi-Point MAC Control sublayer as defined in
[802.3ah], clause 64. When this object has the
enumeration unregistered(1), the interface is
unregistered and may be used for registering a link
partner. When this object has the enumeration
registering(2), the interface is in the process of
registering a link-partner. When this object has the
enumeration registered(3), the interface has an
established link-partner.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
REFERENCE "[802.3ah], 30.3.5.1.6."
::= { dot3MpcpControlEntry 7 }
dot3MpcpTransmitElapsed OBJECT-TYPE
SYNTAX Unsigned32
UNITS "TQ (16nsec)"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
Khermosh Standards Track [Page 39]
RFC 4837 Managed Objects of EPON July 2007
"An object that reports the interval from the last
MPCP frame transmission in increments of Time Quanta
(TQ)-16ns. The value returned shall be (interval from
last MPCP frame transmission in ns)/16. If this value
exceeds (2^32-1), the value (2^32-1) shall be returned.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
REFERENCE "[802.3ah], 30.3.5.1.19."
::= { dot3MpcpControlEntry 8 }
dot3MpcpReceiveElapsed OBJECT-TYPE
SYNTAX Unsigned32
UNITS "TQ (16nsec)"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An object that reports the interval from last MPCP frame
reception in increments of Time Quanta (TQ)-16ns. The
value returned shall be (interval from last MPCP frame
reception in ns)/16. If this value exceeds (2^32-1), the
value (2^32-1) shall be returned.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
REFERENCE "[802.3ah], 30.3.5.1.20."
::= { dot3MpcpControlEntry 9 }
dot3MpcpRoundTripTime OBJECT-TYPE
SYNTAX Unsigned32 (0..'ffff'h)
UNITS "TQ (16nsec)"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An object that reports the MPCP round trip time in
increments of Time Quanta (TQ)-16ns. The value returned
shall be (round trip time in ns)/16. If this value
exceeds (2^16-1), the value (2^16-1) shall be returned.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
REFERENCE "[802.3ah], 30.3.5.1.21."
::= { dot3MpcpControlEntry 10 }
dot3MpcpMaximumPendingGrants OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An object that reports the maximum number of grants
that an ONU can store for handling. The maximum number
Khermosh Standards Track [Page 40]
RFC 4837 Managed Objects of EPON July 2007
of grants that an ONU can store for handling has a
range of 0 to 255.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the OLT, the value should be zero."
REFERENCE "[802.3ah], 30.3.5.1.24."
::= { dot3MpcpControlEntry 11 }
dot3MpcpStatTable OBJECT-TYPE
SYNTAX SEQUENCE OF Dot3MpcpStatEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table defines the list of statistics counters of
an interface implementing the [802.3ah], clause 64 MPCP.
Each object has a row for every virtual link denoted by
the corresponding ifIndex.
The LLID field, as defined in the [802.3ah], is a 2-byte
register (15-bit field and a broadcast bit) limiting the
number of virtual links to 32768. Typically the number
of expected virtual links in a PON is like the number of
ONUs, which is 32-64, plus an additional entry for
broadcast LLID (with a value of 0xffff)."
::= { dot3EponMpcpObjects 2 }
dot3MpcpStatEntry OBJECT-TYPE
SYNTAX Dot3MpcpStatEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the table of statistics counters of the
[802.3ah], clause 64, MPCP interface.
Rows exist for an OLT interface and an ONU interface.
A row in the table is denoted by the ifIndex of the link
and it is created when the ifIndex is created.
The rows in the table for an ONU interface are created
at system initialization.
The row in the table corresponding to the OLT ifIndex
and the row corresponding to the broadcast virtual link
are created at system initialization.
A row in the table corresponding to the ifIndex of a
virtual link is created when a virtual link is
established (ONU registers) and deleted when the virtual
link is deleted (ONU deregisters)."
INDEX { ifIndex}
::= { dot3MpcpStatTable 1 }
Dot3MpcpStatEntry ::=
Khermosh Standards Track [Page 41]
RFC 4837 Managed Objects of EPON July 2007
SEQUENCE {
dot3MpcpMACCtrlFramesTransmitted Counter64,
dot3MpcpMACCtrlFramesReceived Counter64,
dot3MpcpDiscoveryWindowsSent Counter32,
dot3MpcpDiscoveryTimeout Counter32,
dot3MpcpTxRegRequest Counter64,
dot3MpcpRxRegRequest Counter64,
dot3MpcpTxRegAck Counter64,
dot3MpcpRxRegAck Counter64,
dot3MpcpTxReport Counter64,
dot3MpcpRxReport Counter64,
dot3MpcpTxGate Counter64,
dot3MpcpRxGate Counter64,
dot3MpcpTxRegister Counter64,
dot3MpcpRxRegister Counter64
}
dot3MpcpMACCtrlFramesTransmitted OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of MPCP frames passed to the MAC sublayer for
transmission. This counter is incremented when a
MA_CONTROL.request service primitive is generated within
the MAC control sublayer with an opcode indicating an
MPCP frame.
This object is applicable for an OLT and an ONU. At the
OLT it has a distinct value for each virtual interface.
Discontinuities of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.5.1.7."
::= { dot3MpcpStatEntry 1 }
dot3MpcpMACCtrlFramesReceived OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of MPCP frames passed by the MAC sublayer to the
MAC Control sublayer. This counter is incremented when a
ReceiveFrame function call returns a valid frame with
1) a lengthOrType field value equal to the reserved
Khermosh Standards Track [Page 42]
RFC 4837 Managed Objects of EPON July 2007
Type for 802.3_MAC_Control as specified in clause 31.4.1.3,
and
2) an opcode indicating an MPCP frame.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.5.1.8."
::= { dot3MpcpStatEntry 2}
dot3MpcpDiscoveryWindowsSent OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of discovery windows generated. The counter is
incremented by one for each generated discovery window.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the ONU, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.5.1.22."
::= { dot3MpcpStatEntry 3}
dot3MpcpDiscoveryTimeout OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times a discovery timeout
occurs. Increment the counter by one for each discovery
processing state-machine reset resulting from timeout
waiting for message arrival.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.5.1.23."
Khermosh Standards Track [Page 43]
RFC 4837 Managed Objects of EPON July 2007
::= { dot3MpcpStatEntry 4}
dot3MpcpTxRegRequest OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times a REGISTER_REQ MPCP
frame transmission occurs. Increment the counter by one
for each REGISTER_REQ MPCP frame transmitted as defined
in [802.3ah], clause 64.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the OLT, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.5.1.12."
::= { dot3MpcpStatEntry 5}
dot3MpcpRxRegRequest OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times a REGISTER_REQ MPCP
frame reception occurs.
Increment the counter by one for each REGISTER_REQ MPCP
frame received as defined in [802.3ah], clause 64.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the ONU, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.5.1.17."
::= { dot3MpcpStatEntry 6}
dot3MpcpTxRegAck OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
Khermosh Standards Track [Page 44]
RFC 4837 Managed Objects of EPON July 2007
STATUS current
DESCRIPTION
"A count of the number of times a REGISTER_ACK MPCP
frame transmission occurs. Increment the counter by one
for each REGISTER_ACK MPCP frame transmitted as defined
in [802.3ah], clause 64.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the OLT, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.5.1.10."
::= { dot3MpcpStatEntry 7}
dot3MpcpRxRegAck OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times a REGISTER_ACK MPCP
frame reception occurs.
Increment the counter by one for each REGISTER_ACK MPCP
frame received as defined in [802.3ah], clause 64.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the ONU, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.5.1.15."
::= { dot3MpcpStatEntry 8}
dot3MpcpTxReport OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times a REPORT MPCP frame
transmission occurs. Increment the counter by one for
each REPORT MPCP frame transmitted as defined in
[802.3ah], clause 64.
Khermosh Standards Track [Page 45]
RFC 4837 Managed Objects of EPON July 2007
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the OLT, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.5.1.13."
::= { dot3MpcpStatEntry 9}
dot3MpcpRxReport OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times a REPORT MPCP frame
reception occurs.
Increment the counter by one for each REPORT MPCP frame
received as defined in [802.3ah], clause 64.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the ONU, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.5.1.18."
::= { dot3MpcpStatEntry 10}
dot3MpcpTxGate OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times a GATE MPCP frame
transmission occurs.
Increment the counter by one for each GATE MPCP frame
transmitted as defined in [802.3ah], clause 64.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the ONU, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
Khermosh Standards Track [Page 46]
RFC 4837 Managed Objects of EPON July 2007
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.5.1.9."
::= { dot3MpcpStatEntry 11}
dot3MpcpRxGate OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times a GATE MPCP frame
reception occurs.
Increment the counter by one for each GATE MPCP frame
received as defined in [802.3ah], clause 64.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the OLT, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.5.1.14."
::= { dot3MpcpStatEntry 12}
dot3MpcpTxRegister OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times a REGISTER MPCP frame
transmission occurs.
Increment the counter by one for each REGISTER MPCP
frame transmitted as defined in [802.3ah], clause 64.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the ONU, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.5.1.11."
::= { dot3MpcpStatEntry 13}
dot3MpcpRxRegister OBJECT-TYPE
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RFC 4837 Managed Objects of EPON July 2007
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times a REGISTER MPCP frame
reception occurs.
Increment the counter by one for each REGISTER MPCP
frame received as defined in [802.3ah], clause 64.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the OLT, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.5.1.16."
::= { dot3MpcpStatEntry 14}
-- Optical Multi Point Emulation (OMPEmulation)
-- managed object definitions
dot3OmpEmulationObjects OBJECT IDENTIFIER ::={dot3EponObjects 2}
dot3OmpEmulationTable OBJECT-TYPE
SYNTAX SEQUENCE OF Dot3OmpEmulationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of dot3 OmpEmulation MIB objects. The table
contain objects for the management of the OMPEmulation
sublayer.
Each object has a row for every virtual link denoted by
the corresponding ifIndex.
The LLID field, as defined in the [802.3ah], is a 2-byte
register (15-bit field and a broadcast bit) limiting the
number of virtual links to 32768. Typically the number
of expected virtual links in a PON is like the number of
ONUs, which is 32-64, plus an additional entry for
broadcast LLID (with a value of 0xffff)."
::= { dot3OmpEmulationObjects 1 }
dot3OmpEmulationEntry OBJECT-TYPE
SYNTAX Dot3OmpEmulationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
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RFC 4837 Managed Objects of EPON July 2007
"An entry in the dot3 OmpEmulation table.
Rows exist for an OLT interface and an ONU interface.
A row in the table is denoted by the ifIndex of the link
and it is created when the ifIndex is created.
The rows in the table for an ONU interface are created
at system initialization.
The row in the table corresponding to the OLT ifIndex
and the row corresponding to the broadcast virtual link
are created at system initialization.
A row in the table corresponding to the ifIndex of a
virtual links is created when a virtual link is
established (ONU registers) and deleted when the virtual
link is deleted (ONU deregisters)."
INDEX { ifIndex }
::= { dot3OmpEmulationTable 1 }
Dot3OmpEmulationEntry ::=
SEQUENCE {
dot3OmpEmulationType INTEGER
}
dot3OmpEmulationType OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
olt(2),
onu(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An object that indicates the mode of operation
of the Reconciliation Sublayer for Point-to-Point
Emulation (see [802.3ah], clause 65.1). unknown(1) value
is assigned in initialization; true state or type is not
yet known. olt(2) value is assigned when the sublayer is
operating in OLT mode. onu(3) value is assigned when the
sublayer is operating in ONU mode.
This object is applicable for an OLT, with the same
value for all virtual interfaces, and for an ONU."
REFERENCE "[802.3ah], 30.3.7.1.2."
::= { dot3OmpEmulationEntry 1}
dot3OmpEmulationStatTable OBJECT-TYPE
SYNTAX SEQUENCE OF Dot3OmpEmulationStatEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table defines the list of statistics counters of
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RFC 4837 Managed Objects of EPON July 2007
[802.3ah], clause 65, OMPEmulation sublayer.
Each object has a row for every virtual link denoted by
the corresponding ifIndex.
The LLID field, as defined in the [802.3ah], is a 2-byte
register (15-bit field and a broadcast bit) limiting the
number of virtual links to 32768. Typically the number
of expected virtual links in a PON is like the number of
ONUs, which is 32-64, plus an additional entry for
broadcast LLID (with a value of 0xffff)."
::= { dot3OmpEmulationObjects 2}
dot3OmpEmulationStatEntry OBJECT-TYPE
SYNTAX Dot3OmpEmulationStatEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the table of statistics counters of
[802.3ah], clause 65, OMPEmulation sublayer.
Rows exist for an OLT interface and an ONU interface.
A row in the table is denoted by the ifIndex of the link
and it is created when the ifIndex is created.
The rows in the table for an ONU interface are created
at system initialization.
The row in the table corresponding to the OLT ifIndex
and the row corresponding to the broadcast virtual link
are created at system initialization.
A row in the table corresponding to the ifIndex of a
virtual links is created when a virtual link is
established (ONU registers) and deleted when the virtual
link is deleted (ONU deregisters)."
INDEX { ifIndex}
::= { dot3OmpEmulationStatTable 1 }
Dot3OmpEmulationStatEntry::=
SEQUENCE {
dot3OmpEmulationSLDErrors Counter64,
dot3OmpEmulationCRC8Errors Counter64,
dot3OmpEmulationBadLLID Counter64,
dot3OmpEmulationGoodLLID Counter64,
dot3OmpEmulationOnuPonCastLLID Counter64,
dot3OmpEmulationOltPonCastLLID Counter64,
dot3OmpEmulationBroadcastBitNotOnuLlid Counter64,
dot3OmpEmulationOnuLLIDNotBroadcast Counter64,
dot3OmpEmulationBroadcastBitPlusOnuLlid Counter64,
dot3OmpEmulationNotBroadcastBitNotOnuLlid Counter64
}
dot3OmpEmulationSLDErrors OBJECT-TYPE
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RFC 4837 Managed Objects of EPON July 2007
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of frames received that do not contain a valid
SLD field as defined in [802.3ah], clause 65.1.3.3.1.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.7.1.3."
::= { dot3OmpEmulationStatEntry 1}
dot3OmpEmulationCRC8Errors OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of frames received that contain a valid SLD
field, as defined in [802.3ah], clause 65.1.3.3.1, but do
not pass the CRC-8 check as defined in [802.3ah], clause
65.1.3.3.3.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.7.1.4."
::= { dot3OmpEmulationStatEntry 2}
dot3OmpEmulationBadLLID OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of frames received that contain a valid SLD
field, as defined in [802.3ah], clause 65.1.3.3.1, and
pass the CRC-8 check, as defined in [802.3ah], clause
65.1.3.3.3, but are discarded due to the LLID check as
defined in [802.3ah], clause 65.1.3.3.2.
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RFC 4837 Managed Objects of EPON July 2007
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.7.1.8."
::= { dot3OmpEmulationStatEntry 3}
dot3OmpEmulationGoodLLID OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of frames received that contain a valid SLD
field, as defined in [802.3ah], clause 65.1.3.3.1, and
pass the CRC-8 check as defined in [802.3ah], clause
65.1.3.3.3.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.7.1.5."
::= { dot3OmpEmulationStatEntry 4}
dot3OmpEmulationOnuPonCastLLID OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of frames received that contain a valid SLD
field, as defined in [802.3ah], clause 65.1.3.3.1,
pass the CRC-8 check, as defined in [802.3ah], clause
65.1.3.3.3, and meet the rules of acceptance for an
ONU defined in [802.3ah], clause 65.1.3.3.2.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the OLT, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
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RFC 4837 Managed Objects of EPON July 2007
module."
REFERENCE "[802.3ah], 30.3.7.1.6."
::= { dot3OmpEmulationStatEntry 5}
dot3OmpEmulationOltPonCastLLID OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of frames received that contain a valid SLD
field, as defined in [802.3ah], clause 65.1.3.3.1,
pass the CRC-8 check, as defined in [802.3ah], clause
65.1.3.3.3, and meet the rules of acceptance for an
OLT defined in [802.3ah], 65.1.3.3.2.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the ONU, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.3.7.1.7."
::= { dot3OmpEmulationStatEntry 6}
dot3OmpEmulationBroadcastBitNotOnuLlid OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of frames received that contain a valid SLD
field, as defined in [802.3ah], clause
65.1.3.3.1, pass the CRC-8 check, as defined in
[802.3ah], clause 65.1.3.3.3, and contain the broadcast
bit in the LLID and not the ONU's LLID (frame accepted)
as defined in [802.3ah], clause 65.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the OLT, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
::= { dot3OmpEmulationStatEntry 7}
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RFC 4837 Managed Objects of EPON July 2007
dot3OmpEmulationOnuLLIDNotBroadcast OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of frames received that contain a valid SLD
field, as defined in [802.3ah], clause
65.1.3.3.1, pass the CRC-8 check, as defined in
[802.3ah], clause 65.1.3.3.3, and contain the ONU's LLID
as defined in [802.3ah], clause 65.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the OLT, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
::= { dot3OmpEmulationStatEntry 8}
dot3OmpEmulationBroadcastBitPlusOnuLlid OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of frames received that contain a valid SLD
field, as defined in [802.3ah], clause
65.1.3.3.1, pass the CRC-8 check, as defined in
[802.3ah], clause 65.1.3.3.3, and contain the broadcast
bit in the LLID and match the ONU's LLID (frame
reflected) as defined in [802.3ah], clause 65.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the OLT, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
::= { dot3OmpEmulationStatEntry 9}
dot3OmpEmulationNotBroadcastBitNotOnuLlid OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
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RFC 4837 Managed Objects of EPON July 2007
DESCRIPTION
"A count of frames received that contain a valid SLD
field, as defined in [802.3ah], clause
65.1.3.3.1, pass the CRC-8 check, as defined in
[802.3ah], clause 65.1.3.3.3, and do not contain
the ONU's LLID as defined in [802.3ah], clause 65.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
At the OLT, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
::= { dot3OmpEmulationStatEntry 10}
-- FEC managed object definitions (30.5.1)
dot3EponFecObjects OBJECT IDENTIFIER ::={dot3EponObjects 3}
dot3EponFecTable OBJECT-TYPE
SYNTAX SEQUENCE OF Dot3EponFecEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of dot3 EPON FEC management objects.
The entries in the table are control and status objects
and statistic counters for the FEC layer.
Each object has a row for every virtual link denoted by
the corresponding ifIndex.
The LLID field, as defined in the [802.3ah], is a 2-byte
register (15-bit field and a broadcast bit) limiting the
number of virtual links to 32768. Typically the number
of expected virtual links in a PON is like the number of
ONUs, which is 32-64, plus an additional entry for
broadcast LLID (with a value of 0xffff)."
::= { dot3EponFecObjects 1 }
dot3EponFecEntry OBJECT-TYPE
SYNTAX Dot3EponFecEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the dot3 EPON FEC table.
Rows exist for an OLT interface and an ONU interface.
A row in the table is denoted by the ifIndex of the link
and it is created when the ifIndex is created.
The rows in the table for an ONU interface are created
Khermosh Standards Track [Page 55]
RFC 4837 Managed Objects of EPON July 2007
at system initialization.
The row in the table corresponding to the OLT ifIndex
and the row corresponding to the broadcast virtual link
are created at system initialization.
A row in the table corresponding to the ifIndex of a
virtual links is created when a virtual link is
established (ONU registers) and deleted when the virtual
link is deleted (ONU deregisters)."
INDEX { ifIndex}
::= { dot3EponFecTable 1 }
Dot3EponFecEntry ::=
SEQUENCE {
dot3EponFecPCSCodingViolation Counter64,
dot3EponFecAbility INTEGER,
dot3EponFecMode INTEGER,
dot3EponFecCorrectedBlocks Counter64,
dot3EponFecUncorrectableBlocks Counter64,
dot3EponFecBufferHeadCodingViolation Counter64
}
dot3EponFecPCSCodingViolation OBJECT-TYPE
SYNTAX Counter64
UNITS "octets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"For a 100 Mbps operation, it is a count of the number of
times an invalid code-group is received, other than the
/H/ code-group. For a 1000 Mbps operation, it is a count
of the number of times an invalid codegroup is received,
other than the /V/ code-group. /H/ denotes a special
4b5b codeword of [802.3] 100 Mbps PCS layer (clause 24),
and /V/ denotes a special 8b10b codeword of the [802.3]
1000 Mbps PCS layer (clause 36).
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.5.1.1.12."
::= { dot3EponFecEntry 1}
dot3EponFecAbility OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
Khermosh Standards Track [Page 56]
RFC 4837 Managed Objects of EPON July 2007
supported(2),
unsupported(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An object that indicates the support of operation of the
optional FEC sublayer of the 1000BASE-PX PHY specified
in [802.3ah], clause 65.2.
unknown(1) value is assigned in the initialization, for non
FEC support state or type not yet known. unsupported(3)
value is assigned when the sublayer is not supported.
supported(2) value is assigned when the sublayer is
supported.
This object is applicable for an OLT, with the same
value for all virtual interfaces, and for an ONU.
The FEC counters will have a zero value when the
interface is not supporting FEC.
The counters:
dot3EponFecPCSCodingViolation - not affected by FEC
ability.
dot3EponFecCorrectedBlocks - has a zero value when
dot3EponFecAbility is unknown(1) and unsupported(3).
dot3EponFecUncorrectableBlocks - has a zero value when
dot3EponFecAbility is unknown(1) and unsupported(3).
dot3EponFecBufferHeadCodingViolation - has a zero value
when dot3EponFecAbility is unknown(1) and
unsupported(3)."
REFERENCE "[802.3ah], 30.5.1.1.13."
::= { dot3EponFecEntry 2}
dot3EponFecMode OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
disabled(2),
enabled(3)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"An object that defines the mode of operation of the
optional FEC sublayer of the 1000BASE-PX PHY, specified
in [802.3ah], clause 65.2, and reflects its state.
A GET operation returns the current mode of operation
of the PHY. A SET operation changes the mode of
operation of the PHY to the indicated value.
unknown(1) value is assigned in the initialization for non
FEC support state or type not yet known.
Khermosh Standards Track [Page 57]
RFC 4837 Managed Objects of EPON July 2007
disabled(2) value is assigned when the FEC sublayer is
operating in disabled mode.
enabled(3) value is assigned when the FEC sublayer is
operating in FEC mode.
The write operation is not restricted in this document
and can be done at any time. Changing dot3EponFecMode
state can lead to disabling the Forward Error Correction
on the respective interface, which can lead to a
degradation of the optical link, and therefore may lead
to an interruption of service for the users connected to
the respective EPON interface.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
The counting of
the FEC counters will stop when the FEC of the interface
is disabled.
The counters:
dot3EponFecPCSCodingViolation - not affected by FEC
mode.
dot3EponFecCorrectedBlocks - stops counting when
Rx_FEC is not enabled. (unknown(1) and disabled(2)).
dot3EponFecUncorrectableBlocks - stops counting when
Rx_FEC is not enabled (unknown(1) and disabled(2)).
dot3EponFecBufferHeadCodingViolation - stops counting
when Rx_FEC is not enabled (unknown(1) and
disabled(2)).
The object:
dot3EponFecAbility - indicates the FEC ability and
is not affected by the dot3EponFecMode object."
REFERENCE "[802.3ah], 30.5.1.1.14."
DEFVAL { unknown }
::= { dot3EponFecEntry 3}
dot3EponFecCorrectedBlocks OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"For 10PASS-TS, 2BASE-TL, and 1000BASE-PX PHYs, it is a
count of corrected FEC blocks. This counter will not
increment for other PHY Types. Increment the counter by
one for each received block that is corrected by the FEC
function in the PHY.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
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RFC 4837 Managed Objects of EPON July 2007
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.5.1.1.15."
::= { dot3EponFecEntry 4}
dot3EponFecUncorrectableBlocks OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"For 10PASS-TS, 2BASE-TL, and 1000BASE-PX PHYs, it is a
count of uncorrectable FEC blocks. This counter will not
increment for other PHY Types. Increment the counter by
one for each FEC block that is determined to be
uncorrectable by the FEC function in the PHY.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
REFERENCE "[802.3ah], 30.5.1.1.16."
::= { dot3EponFecEntry 5}
dot3EponFecBufferHeadCodingViolation OBJECT-TYPE
SYNTAX Counter64
UNITS "octets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"For a 1000 Mbps operation, it is a count of the number of
invalid code-group received directly from the link. The
value has a meaning only in 1000 Mbps mode and it is
zero otherwise.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
::= { dot3EponFecEntry 6}
-- ExtendedPackage managed object definitions
dot3ExtPkgObjects OBJECT IDENTIFIER ::={dot3EponObjects 4}
Khermosh Standards Track [Page 59]
RFC 4837 Managed Objects of EPON July 2007
dot3ExtPkgControlObjects OBJECT IDENTIFIER ::= { dot3ExtPkgObjects 1}
dot3ExtPkgControlTable OBJECT-TYPE
SYNTAX SEQUENCE OF Dot3ExtPkgControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of Extended package Control management
objects. Entries in the table are control and status
indication objects of an EPON interface, which are
gathered in an extended package as an addition to the
objects based on the [802.3ah], clause 30, attributes.
Each object has a row for every virtual link denoted by
the corresponding ifIndex.
The LLID field, as defined in the [802.3ah], is a 2-byte
register (15-bit field and a broadcast bit) limiting the
number of virtual links to 32768. Typically the number
of expected virtual links in a PON is like the number of
ONUs, which is 32-64, plus an additional entry for
broadcast LLID (with a value of 0xffff)."
::= { dot3ExtPkgControlObjects 1 }
dot3ExtPkgControlEntry OBJECT-TYPE
SYNTAX Dot3ExtPkgControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the Extended package Control table.
Rows exist for an OLT interface and an ONU interface.
A row in the table is denoted by the ifIndex of the link
and it is created when the ifIndex is created.
The rows in the table for an ONU interface are created
at system initialization.
The row in the table corresponding to the OLT ifIndex
and the row corresponding to the broadcast virtual link
are created at system initialization.
A row in the table corresponding to the ifIndex of a
virtual links is created when a virtual link is
established (ONU registers) and deleted when the virtual
link is deleted (ONU deregisters)."
INDEX { ifIndex}
::= { dot3ExtPkgControlTable 1 }
Dot3ExtPkgControlEntry ::=
SEQUENCE {
dot3ExtPkgObjectReset INTEGER,
dot3ExtPkgObjectPowerDown TruthValue,
dot3ExtPkgObjectNumberOfLLIDs Unsigned32,
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RFC 4837 Managed Objects of EPON July 2007
dot3ExtPkgObjectFecEnabled INTEGER,
dot3ExtPkgObjectReportMaximumNumQueues Unsigned32,
dot3ExtPkgObjectRegisterAction INTEGER
}
dot3ExtPkgObjectReset OBJECT-TYPE
SYNTAX INTEGER {
running(1),
reset(2)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object is used to reset the EPON interface. The
interface may be unavailable while the reset occurs and
data may be lost.
Setting this object to running(1) will cause the
interface to enter into running mode. Setting this
object to reset(2) will cause the interface to go into
reset mode. When getting running(1), the interface is in
running mode. When getting reset(2), the interface is in
reset mode.
The write operation is not restricted in this document
and can be done at any time. Changing
dot3ExtPkgObjectReset state can lead to a reset of the
respective interface, leading to an interruption of
service for the users connected to the respective EPON
interface.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
A reset for a specific virtual interface resets only
this virtual interface and not the physical interface.
Thus, a virtual link that is malfunctioning can be
reset without affecting the operation of other virtual
interfaces.
The reset can cause Discontinuities in the values of the
counters of the interface, similar to re-initialization
of the management system. Discontinuity should be
indicated by the ifCounterDiscontinuityTime object of
the Interface MIB module."
DEFVAL { running }
::= { dot3ExtPkgControlEntry 1 }
dot3ExtPkgObjectPowerDown OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
Khermosh Standards Track [Page 61]
RFC 4837 Managed Objects of EPON July 2007
"This object is used to power down the EPON interface.
The interface may be unavailable while the power down
occurs and data may be lost.
Setting this object to true(1) will cause the interface
to enter into power down mode. Setting this object to
false(2) will cause the interface to go out of power
down mode. When getting true(1), the interface is in
power down mode. When getting false(2), the interface is
not in power down mode.
The write operation is not restricted in this document
and can be done at any time. Changing
dot3ExtPkgObjectPowerDown state can lead to a power down
of the respective interface, leading to an interruption
of service of the users connected to the respective EPON
interface.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
A power down/up of a specific virtual interface affects
only the virtual interface and not the physical
interface. Hence a virtual link, which needs a certain
handling, can be powered down and then powered up without
disrupting the operation of other virtual interfaces.
The object is relevant when the admin state of the
interface is active as set by the dot3MpcpAdminState."
DEFVAL { false }
::= { dot3ExtPkgControlEntry 2 }
dot3ExtPkgObjectNumberOfLLIDs OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A read only object that indicates the number of
registered LLIDs. The initialization value is 0.
This object is applicable for an OLT with the same
value for all virtual interfaces and for an ONU.
The LLID field, as defined in the [802.3ah], is a 2-byte
register (15-bit field and a broadcast bit) limiting the
number of virtual links to 32768. Typically the number
of expected virtual links in a PON is like the number of
ONUs, which is 32-64, plus an additional entry for
broadcast LLID (with a value of 0xffff). At the ONU the
number of LLIDs for an interface is one."
::= { dot3ExtPkgControlEntry 3 }
dot3ExtPkgObjectFecEnabled OBJECT-TYPE
SYNTAX INTEGER {
noFecEnabled(1),
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RFC 4837 Managed Objects of EPON July 2007
fecTxEnabled(2),
fecRxEnabled(3),
fecTxRxEnabled(4)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"An object defining the FEC mode of operation of the
interface, and indicating its state. The modes defined in
this object are extensions to the FEC modes defined in
the dot3EponFecMode object.
When noFECEnabled(1), the interface does not enable FEC
mode.
When fecTxEnabled(2), the interface enables the FEC
transmit mode.
When fecRxEnabled(3), the interface enables the FEC
receive mode.
When fecTxRxEnabled(4), the interface enables the FEC
transmit and receive mode.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
The FEC counters are referring to the receive path. The
FEC counters will stop when the FEC receive mode of the
interface is disabled, as defined by fecRxEnabled(3)
and fecTxRxEnabled(4) values.
The counters:
dot3EponFecPCSCodingViolation - not affected by FEC
mode.
dot3EponFecCorrectedBlocks - stops counting when
Rx_FEC is not enabled (noFecEnabled(1) and
fecTxEnabled(2)).
dot3EponFecUncorrectableBlocks - stops counting when
Rx_FEC is not enabled (noFecEnabled(1) and
fecTxEnabled(2)).
dot3EponFecBufferHeadCodingViolation - stops counting
when Rx_FEC is not enabled (noFecEnabled(1) and
fecTxEnabled(2)).
The objects:
dot3EponFecAbility - indicates the FEC ability and is
not affected by the FEC mode.
dot3EponFecMode - indicates the FEC mode for combined RX
and TX.
The write operation is not restricted in this document
and can be done at any time. Changing
dot3ExtPkgObjectFecEnabled state can lead to disabling
the Forward Error Correction on the respective interface,
which can lead to a degradation of the optical link, and
therefore may lead to an interruption of service for the
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RFC 4837 Managed Objects of EPON July 2007
users connected to the respective EPON interface."
DEFVAL { noFecEnabled }
::= { dot3ExtPkgControlEntry 4 }
dot3ExtPkgObjectReportMaximumNumQueues OBJECT-TYPE
SYNTAX Unsigned32 (0..7)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An object, that defines the maximal number of queues in
the REPORT message as defined in [802.3ah], clause 64. For
further information please see the description of the
queue table.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
DEFVAL { 0 }
::= { dot3ExtPkgControlEntry 5 }
dot3ExtPkgObjectRegisterAction OBJECT-TYPE
SYNTAX INTEGER {
none(1),
register(2),
deregister(3),
reregister(4)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"An object configuring the registration state of an
interface, and indicating its registration state.
Write operation changes the registration state to its new
value.
Read operation returns the value of the state.
The registration state is reflected in this object and in
the dot3MpcpRegistrationState object.
none(1) indicates an unknown state,
register(2) indicates a registered LLID,
deregister(3) indicates a deregistered LLID,
reregister(4) indicates an LLID that is reregistering.
The following list describes the operation of the
interface, as specified in the [802.3ah], when a write
operation is setting a value.
none(1) - not doing any action.
register(2) - registering an LLID that has been requested
for registration (The LLID is in registering mode.
dot3MpcpRegistrationState - registering(2) ).
deregister(3) - deregisters an LLID that is registered
(dot3MpcpRegistrationState - registered(3) ).
Khermosh Standards Track [Page 64]
RFC 4837 Managed Objects of EPON July 2007
reregister(4) - reregister an LLID that is registered
(dot3MpcpRegistrationState - registered(3) ).
The behavior of an ONU and OLT interfaces, at each one
of the detailed operation at each state, is described in
the registration state machine of figure 64-22,
[802.3ah].
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface.
The write operation is not restricted in this document
and can be done at any time. Changing
dot3ExtPkgObjectRegisterAction state can lead to a change
in the registration state of the respective interface
leading to a deregistration and an interruption of
service of the users connected to the respective EPON
interface."
DEFVAL { none }
::= { dot3ExtPkgControlEntry 6 }
dot3ExtPkgQueueTable OBJECT-TYPE
SYNTAX SEQUENCE OF Dot3ExtPkgQueueEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of the extended package objects for queue
management. The [802.3ah] MPCP defines a report message
of the occupancy of the transmit queues for the feedback
BW request from the ONUs. These queues serve the uplink
transmission of the ONU and data is gathered there until
the ONU is granted for transmission.
The management table of the queues is added here mainly
to control the reporting and to gather some statistics
of their operation. This table is not duplicating
existing management objects of bridging queues,
specified in [802.1d], since the existence of a
dedicated transmit queuing mechanism is implied in the
[802.3ah], and the ONU may be a device that is not a
bridge with embedded bridging queues.
The format of the REPORT message, as specified
in [802.3], is presented below:
+-----------------------------------+
| Destination Address |
+-----------------------------------+
| Source Address |
+-----------------------------------+
| Length/Type |
+-----------------------------------+
| OpCode |
+-----------------------------------+
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RFC 4837 Managed Objects of EPON July 2007
| TimeStamp |
+-----------------------------------+
| Number of queue Sets |
+-----------------------------------+ /|\
| Report bitmap | |
+-----------------------------------+ |
| Queue 0 report | |
+-----------------------------------+ | repeated for
| Queue 1 report | | every
+-----------------------------------+ | queue_set
| Queue 2 report | |
+-----------------------------------+ |
| Queue 3 report | |
+-----------------------------------+ |
| Queue 4 report | |
+-----------------------------------+ |
| Queue 5 report | |
+-----------------------------------+ |
| Queue 6 report | |
+-----------------------------------+ |
| Queue 7 report | |
+-----------------------------------+ \|/
| Pad/reserved |
+-----------------------------------+
| FCS |
+-----------------------------------+
The 'Queue report' field reports the occupancy of each
uplink transmission queue.
The number of queue sets defines the number of the
reported sets, as would be explained in the description
of the dot3ExtPkgQueueSetsTable table. For each set the
report bitmap defines which queue is present in the
report, meaning that although the MPCP REPORT message
can report up to 8 queues in a REPORT message, the
actual number is flexible. The Queue table has a
variable size that is limited by the
dot3ExtPkgObjectReportMaximumNumQueues object, as an
ONU can have fewer queues to report.
The entries in the table are control and status
indication objects for managing the queues of an EPON
interface that are gathered in an extended package as
an addition to the objects that are based on the
[802.3ah] attributes.
Each object has a row for every virtual link and for
every queue in the report.
The LLID field, as defined in the [802.3ah], is a 2-byte
register (15-bit field and a broadcast bit) limiting the
Khermosh Standards Track [Page 66]
RFC 4837 Managed Objects of EPON July 2007
number of virtual links to 32768. Typically the number
of expected virtual links in a PON is like the number of
ONUs, which is 32-64, plus an additional entry for
broadcast LLID (with a value of 0xffff).
The number of queues is between 0 and 7 and limited by
dot3ExtPkgObjectReportMaximumNumQueues."
::= { dot3ExtPkgControlObjects 2 }
dot3ExtPkgQueueEntry OBJECT-TYPE
SYNTAX Dot3ExtPkgQueueEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the Extended package Queue table. At the
OLT, the rows exist for each ifIndex and dot3QueueIndex.
At the ONU, rows exist for the single ifIndex for each
dot3QueueIndex.
Rows in the table are created when the ifIndex of the
link is created. A set of rows per queue are added for
each ifIndex, denoted by the dot3QueueIndex.
A set of rows per queue in the table, for an ONU
interface, are created at the system initialization.
A set of rows per queue in the table, corresponding to
the OLT ifIndex and a set of rows per queue
corresponding to the broadcast virtual link, are
created at the system initialization.
A set of rows per queue in the table, corresponding to
the ifIndex of a virtual link, are created when the
virtual link is established (ONU registers), and deleted
when the virtual link is deleted (ONU deregisters)."
INDEX { ifIndex, dot3QueueIndex }
::= { dot3ExtPkgQueueTable 1 }
Dot3ExtPkgQueueEntry ::=
SEQUENCE {
dot3QueueIndex Unsigned32,
dot3ExtPkgObjectReportNumThreshold Unsigned32,
dot3ExtPkgObjectReportMaximumNumThreshold Unsigned32,
dot3ExtPkgStatTxFramesQueue Counter64,
dot3ExtPkgStatRxFramesQueue Counter64,
dot3ExtPkgStatDroppedFramesQueue Counter64
}
dot3QueueIndex OBJECT-TYPE
SYNTAX Unsigned32 (0..7)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
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RFC 4837 Managed Objects of EPON July 2007
"An object that identifies an index for the queue table
reflecting the queue index of the queues that are
reported in the MPCP REPORT message as defined in
[802.3ah], clause 64.
The number of queues is between 0 and 7, and limited by
dot3ExtPkgObjectReportMaximumNumQueues."
::= { dot3ExtPkgQueueEntry 1 }
dot3ExtPkgObjectReportNumThreshold OBJECT-TYPE
SYNTAX Unsigned32 (0..7)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"An object that defines the number of thresholds for each
queue in the REPORT message as defined in [802.3ah],
clause 64.
Each queue_set reporting will provide information on the
queue occupancy of frames below the matching Threshold.
Read operation reflects the number of thresholds.
Write operation sets the number of thresholds for each
queue.
The write operation is not restricted in this document
and can be done at any time. Value cannot exceed the
maximal value defined by the
dot3ExtPkgObjectReportMaximumNumThreshold object.
Changing dot3ExtPkgObjectReportNumThreshold can lead to
a change in the reporting of the ONU interface and
therefore to a change in the bandwidth allocation of the
respective interface. This change may lead a degradation
or an interruption of service of the users connected to
the respective EPON interface.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface
and for each queue. At the ONU, it has a distinct value
for each queue."
DEFVAL { 0 }
::= { dot3ExtPkgQueueEntry 2 }
dot3ExtPkgObjectReportMaximumNumThreshold OBJECT-TYPE
SYNTAX Unsigned32 (0..7)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An object, that defines the maximal number of thresholds
for each queue in the REPORT message as defined in
[802.3ah], clause 64. Each queue_set reporting will
provide information on the queue occupancy of frames
below the matching Threshold.
Khermosh Standards Track [Page 68]
RFC 4837 Managed Objects of EPON July 2007
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface
and for each queue. At the ONU, it has a distinct value
for each queue."
DEFVAL { 0 }
::= { dot3ExtPkgQueueEntry 3 }
dot3ExtPkgStatTxFramesQueue OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times a frame transmission
occurs from the corresponding 'Queue'.
Increment the counter by one for each frame transmitted,
which is an output of the 'Queue'.
The 'Queue' marking matches the REPORT MPCP message
Queue field as defined in [802.3ah], clause 64.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface
and for each queue. At the ONU, it has a distinct value
for each queue.
At the OLT the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
::= { dot3ExtPkgQueueEntry 4}
dot3ExtPkgStatRxFramesQueue OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times a frame reception
occurs from the corresponding 'Queue'.
Increment the counter by one for each frame received,
which is an input to the corresponding 'Queue'.
The 'Queue' marking matches the REPORT MPCP message
Queue field as defined in [802.3ah], clause 64.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface
and for each queue. At the ONU, it has a distinct value
for each queue.
Discontinuities of this counter can occur at
Khermosh Standards Track [Page 69]
RFC 4837 Managed Objects of EPON July 2007
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
::= { dot3ExtPkgQueueEntry 5}
dot3ExtPkgStatDroppedFramesQueue OBJECT-TYPE
SYNTAX Counter64
UNITS "frames"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the number of times a frame drop
occurs from the corresponding 'Queue'.
Increment the counter by one for each frame dropped
from the corresponding 'Queue'.
The 'Queue' marking matches the REPORT MPCP message
Queue field as defined in [802.3ah], clause 64.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface
and for each queue. At the ONU, it has a distinct value
for each queue.
At the OLT, the value should be zero.
Discontinuities of this counter can occur at
re-initialization of the management system and at other
times, as indicated by the value of the
ifCounterDiscontinuityTime object of the Interface MIB
module."
::= { dot3ExtPkgQueueEntry 6}
dot3ExtPkgQueueSetsTable OBJECT-TYPE
SYNTAX SEQUENCE OF Dot3ExtPkgQueueSetsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of Extended package objects used for the
management of the queue_sets. Entries are control and
status indication objects of an EPON interface, which
are gathered in an extended package as an addition to
the objects based on the [802.3ah] attributes. The
objects in this table are specific for the queue_sets,
which are reported in the MPCP REPORT message as defined
in [802.3ah], clause 64.
The [802.3ah] MPCP defines a report message of the
occupancy of the transmit queues for the feedback BW
request from the ONUs. These queues serve the uplink
transmission of the ONU and data is gathered there until
the ONU is granted for transmission.
Khermosh Standards Track [Page 70]
RFC 4837 Managed Objects of EPON July 2007
The management table of the queues_sets is added here
mainly to control the reporting and to gather some
statistics of their operation. This table is not
duplicating existing management objects of bridging
queues, specified in [802.1d], since the existence of a
dedicated transmit queuing mechanism is implied in the
[802.3ah], and the ONU may be a device that is not a
bridge with embedded bridging queues.
The format of the REPORT message, as specified
in [802.3], is presented below:
+-----------------------------------+
| Destination Address |
+-----------------------------------+
| Source Address |
+-----------------------------------+
| Length/Type |
+-----------------------------------+
| OpCode |
+-----------------------------------+
| TimeStamp |
+-----------------------------------+
| Number of queue Sets |
+-----------------------------------+ /|\
| Report bitmap | |
+-----------------------------------+ |
| Queue 0 report | |
+-----------------------------------+ | repeated for
| Queue 1 report | | every
+-----------------------------------+ | queue_set
| Queue 2 report | |
+-----------------------------------+ |
| Queue 3 report | |
+-----------------------------------+ |
| Queue 4 report | |
+-----------------------------------+ |
| Queue 5 report | |
+-----------------------------------+ |
| Queue 6 report | |
+-----------------------------------+ |
| Queue 7 report | |
+-----------------------------------+ \|/
| Pad/reserved |
+-----------------------------------+
| FCS |
+-----------------------------------+
As can be seen from the message format, the ONU
interface reports of the status of up to 8 queues
Khermosh Standards Track [Page 71]
RFC 4837 Managed Objects of EPON July 2007
and it can report in a single MPCP REPORT message
of a few sets of queues.
The number of queue_sets defines the number of the
reported sets, and it can reach a value of up to 8.
It means that an ONU can hold a variable number of
sets between 0 and 7.
The dot3ExtPkgQueueSetsTable table has a variable
queue_set size that is limited by the
dot3ExtPkgObjectReportMaximumNumThreshold object as an
ONU can have fewer queue_sets to report.
The 'Queue report' field reports the occupancy of each
uplink transmission queue. The queue_sets can be used to
report the occupancy of the queues in a few levels as to
allow granting, in an accurate manner, of only part of
the data available in the queues. A Threshold is
defined for each queue_set to define the level of the
queue that is counted for the report of the occupancy.
The threshold is reflected in the queue_set table by the
dot3ExtPkgObjectReportThreshold object.
For each queue set, the report bitmap defines which
queues are present in the report, meaning that
although the MPCP REPORT message can report of up to 8
queues in a REPORT message, the actual number is
flexible.
The dot3ExtPkgQueueSetsTable table has a variable queue
size that is limited by the
dot3ExtPkgObjectReportMaximumNumQueues object as an ONU
can have fewer queues to report.
Each object has a row for every virtual link, for each
queue in the report and for each queue_set in the queue.
The LLID field, as defined in the [802.3ah], is a 2-byte
register (15-bit field and a broadcast bit) limiting the
number of virtual links to 32768. Typically the number
of expected virtual links in a PON is like the number of
ONUs, which is 32-64, plus an additional entry for
broadcast LLID (with a value of 0xffff).
The number of queues is between 0 and 7 and limited by
dot3ExtPkgObjectReportMaximumNumQueues.
The number of queues_sets is between 0 and 7 and limited
by dot3ExtPkgObjectReportMaximumNumThreshold."
::= { dot3ExtPkgControlObjects 3 }
dot3ExtPkgQueueSetsEntry OBJECT-TYPE
SYNTAX Dot3ExtPkgQueueSetsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the Extended package queue_set table. At
Khermosh Standards Track [Page 72]
RFC 4837 Managed Objects of EPON July 2007
the OLT, the rows exist for each ifIndex,
dot3QueueSetQueueIndex and dot3QueueSetIndex. At the
ONU, rows exist for the single ifIndex, for each
dot3QueueSetQueueIndex and dot3QueueSetIndex.
Rows in the table are created when the ifIndex of the
link is created. A set of rows per queue and per
queue_set are added for each ifIndex, denoted by
dot3QueueSetIndex and dot3QueueSetQueueIndex.
A set of rows per queue and per queue_set in the table,
for an ONU interface are created at system
initialization.
A set of rows per queue and per queue_Set in the table,
corresponding to the OLT ifIndex and a set of rows per
queue and per queue_set, corresponding to the broadcast
virtual link, are created at system initialization.
A set of rows per queue and per queue_set in the table,
corresponding to the ifIndex of a virtual link are
created when the virtual link is established (ONU
registers) and deleted when the virtual link is deleted
(ONU deregisters)."
INDEX { ifIndex,
dot3QueueSetQueueIndex,dot3QueueSetIndex}
::= { dot3ExtPkgQueueSetsTable 1 }
Dot3ExtPkgQueueSetsEntry ::=
SEQUENCE {
dot3QueueSetQueueIndex Unsigned32,
dot3QueueSetIndex Unsigned32,
dot3ExtPkgObjectReportThreshold Unsigned32
}
dot3QueueSetQueueIndex OBJECT-TYPE
SYNTAX Unsigned32 (0..7)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An object that identifies the queue index for the
dot3ExtPkgQueueSetsTable table. The queues are reported
in the MPCP REPORT message as defined in [802.3ah],
clause 64.
The number of queues is between 0 and 7, and limited by
dot3ExtPkgObjectReportMaximumNumQueues.
Value corresponds to the dot3QueueIndex of the queue
table."
::= { dot3ExtPkgQueueSetsEntry 1 }
dot3QueueSetIndex OBJECT-TYPE
SYNTAX Unsigned32 (0..7)
Khermosh Standards Track [Page 73]
RFC 4837 Managed Objects of EPON July 2007
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An object that identifies the queue_set index for the
dot3ExtPkgQueueSetsTable table. The queues are reported
in the MPCP REPORT message as defined in [802.3ah],
clause 64.
The number of queues_sets is between 0 and 7, and
limited by dot3ExtPkgObjectReportMaximumNumThreshold."
::= { dot3ExtPkgQueueSetsEntry 2 }
dot3ExtPkgObjectReportThreshold OBJECT-TYPE
SYNTAX Unsigned32
UNITS "TQ (16nsec)"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"An object that defines the value of a threshold report
for each queue_set in the REPORT message as defined in
[802.3ah], clause 64. The number of sets for each queue
is dot3ExtPkgObjectReportNumThreshold.
In the REPORT message, each queue_set reporting will
provide information on the occupancy of the queues for
frames below the matching Threshold.
The value returned shall be in Time quanta (TQ), which
is 16nsec or 2 octets increments.
Read operation provides the threshold value. Write
operation sets the value of the threshold.
The write operation is not restricted in this document
and can be done at any time. Changing
dot3ExtPkgObjectReportThreshold can lead to a change in
the reporting of the ONU interface and therefore to a
change in the bandwidth allocation of the respective
interface. This change may lead a degradation or an
interruption of service for the users connected to the
respective EPON interface.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface,
for each queue and for each queue_set. At the ONU, it has
a distinct value for each queue and for each queue_set."
DEFVAL { 0 }
::= { dot3ExtPkgQueueSetsEntry 3 }
--Optical Interface status tables
dot3ExtPkgOptIfTable OBJECT-TYPE
SYNTAX SEQUENCE OF Dot3ExtPkgOptIfEntry
MAX-ACCESS not-accessible
Khermosh Standards Track [Page 74]
RFC 4837 Managed Objects of EPON July 2007
STATUS current
DESCRIPTION
"This table defines the control and status indication
objects for the optical interface of the EPON interface.
Each object has a row for every virtual link denoted by
the corresponding ifIndex.
The LLID field, as defined in the [802.3ah], is a 2-byte
register (15-bit field and a broadcast bit) limiting the
number of virtual links to 32768. Typically the number
of expected virtual links in a PON is like the number of
ONUs, which is 32-64, plus an additional entry for
broadcast LLID (with a value of 0xffff).
Although the optical interface is a physical interface,
there is a row in the table for each virtual interface.
The reason for having a separate row for each virtual
link is that the OLT has a separate link for each one of
the ONUs. For instance, ONUs could be in different
distances with different link budgets and different
receive powers, therefore having different power alarms.
It is quite similar to a case of different physical
interfaces."
::= { dot3ExtPkgControlObjects 5}
dot3ExtPkgOptIfEntry OBJECT-TYPE
SYNTAX Dot3ExtPkgOptIfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the optical interface table of the EPON
interface.
Rows exist for an OLT interface and an ONU interface.
A row in the table is denoted by the ifIndex of the link
and it is created when the ifIndex is created.
The rows in the table for an ONU interface are created
at system initialization.
The row in the table corresponding to the OLT ifIndex
and the row corresponding to the broadcast virtual link
are created at system initialization.
A row in the table corresponding to the ifIndex of a
virtual links is created when a virtual link is
established (ONU registers) and deleted when the virtual
link is deleted (ONU deregisters)."
INDEX { ifIndex }
::= { dot3ExtPkgOptIfTable 1 }
Dot3ExtPkgOptIfEntry ::=
SEQUENCE {
dot3ExtPkgOptIfSuspectedFlag TruthValue,
Khermosh Standards Track [Page 75]
RFC 4837 Managed Objects of EPON July 2007
dot3ExtPkgOptIfInputPower Integer32,
dot3ExtPkgOptIfLowInputPower Integer32,
dot3ExtPkgOptIfHighInputPower Integer32,
dot3ExtPkgOptIfLowerInputPowerThreshold Integer32,
dot3ExtPkgOptIfUpperInputPowerThreshold Integer32,
dot3ExtPkgOptIfOutputPower Integer32,
dot3ExtPkgOptIfLowOutputPower Integer32,
dot3ExtPkgOptIfHighOutputPower Integer32,
dot3ExtPkgOptIfLowerOutputPowerThreshold Integer32,
dot3ExtPkgOptIfUpperOutputPowerThreshold Integer32,
dot3ExtPkgOptIfSignalDetect TruthValue,
dot3ExtPkgOptIfTransmitAlarm TruthValue,
dot3ExtPkgOptIfTransmitEnable TruthValue
}
dot3ExtPkgOptIfSuspectedFlag OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object is a reliability indication.
If true, the data in this entry may be unreliable.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
::= { dot3ExtPkgOptIfEntry 1 }
dot3ExtPkgOptIfInputPower OBJECT-TYPE
SYNTAX Integer32
UNITS "0.1 dbm"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The optical power monitored at the input.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
::= { dot3ExtPkgOptIfEntry 2 }
dot3ExtPkgOptIfLowInputPower OBJECT-TYPE
SYNTAX Integer32
UNITS "0.1 dbm"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The lowest optical power monitored at the input during the
current 15-minute interval.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
::= { dot3ExtPkgOptIfEntry 3 }
Khermosh Standards Track [Page 76]
RFC 4837 Managed Objects of EPON July 2007
dot3ExtPkgOptIfHighInputPower OBJECT-TYPE
SYNTAX Integer32
UNITS "0.1 dbm"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The highest optical power monitored at the input during the
current 15-minute interval.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
::= { dot3ExtPkgOptIfEntry 4 }
dot3ExtPkgOptIfLowerInputPowerThreshold OBJECT-TYPE
SYNTAX Integer32
UNITS "0.1 dbm"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The lower limit threshold on input power. If
dot3ExtPkgOptIfInputPower drops to this value or below,
a Threshold Crossing Alert (TCA) should be sent.
Reading will present the threshold value. Writing will
set the value of the threshold.
The write operation is not restricted in this document
and can be done at any time. Changing
dot3ExtPkgOptIfLowerInputPowerThreshold can lead to a Threshold
Crossing Alert (TCA) being sent for the respective interface.
This alert may be leading to an interruption of service for the
users connected to the respective EPON interface, depending on
the system action on such an alert.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
::= { dot3ExtPkgOptIfEntry 5 }
dot3ExtPkgOptIfUpperInputPowerThreshold OBJECT-TYPE
SYNTAX Integer32
UNITS "0.1 dbm"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The upper limit threshold on input power. If
dot3ExtPkgOptIfInputPower reaches or exceeds this value,
a Threshold Crossing Alert (TCA) should be sent.
Reading will present the threshold value. Writing will
set the value of the threshold.
The write operation is not restricted in this document
and can be done at any time. Changing
dot3ExtPkgOptIfUpperInputPowerThreshold can lead to a Threshold
Khermosh Standards Track [Page 77]
RFC 4837 Managed Objects of EPON July 2007
Crossing Alert (TCA) being sent for the respective interface.
This alert may be leading to an interruption of service for the
users connected to the respective EPON interface, depending on
the system action on such an alert.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
::= { dot3ExtPkgOptIfEntry 6 }
dot3ExtPkgOptIfOutputPower OBJECT-TYPE
SYNTAX Integer32
UNITS "0.1 dbm"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The optical power monitored at the output.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
::= { dot3ExtPkgOptIfEntry 7 }
dot3ExtPkgOptIfLowOutputPower OBJECT-TYPE
SYNTAX Integer32
UNITS "0.1 dbm"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The lowest optical power monitored at the output during the
current 15-minute interval.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
::= { dot3ExtPkgOptIfEntry 8 }
dot3ExtPkgOptIfHighOutputPower OBJECT-TYPE
SYNTAX Integer32
UNITS "0.1 dbm"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The highest optical power monitored at the output during the
current 15-minute interval.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
::= { dot3ExtPkgOptIfEntry 9 }
dot3ExtPkgOptIfLowerOutputPowerThreshold OBJECT-TYPE
SYNTAX Integer32
UNITS "0.1 dbm"
MAX-ACCESS read-write
STATUS current
Khermosh Standards Track [Page 78]
RFC 4837 Managed Objects of EPON July 2007
DESCRIPTION
"The lower limit threshold on output power. If
dot3ExtPkgOptIfOutputPower drops to this value or below,
a Threshold Crossing Alert (TCA) should be sent.
Reading will present the threshold value. Writing will
set the value of the threshold.
The write operation is not restricted in this document
and can be done at any time. Changing
dot3ExtPkgOptIfLowerOutputPowerThreshold can lead to a Threshold
Crossing Alert (TCA) being sent for the respective interface.
This alert may be leading to an interruption of service for the
users connected to the respective EPON interface, depending on
the system action on such an alert.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
::= { dot3ExtPkgOptIfEntry 10 }
dot3ExtPkgOptIfUpperOutputPowerThreshold OBJECT-TYPE
SYNTAX Integer32
UNITS "0.1 dbm"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The upper limit threshold on output power. If
dot3ExtPkgOptIfOutputPower reaches or exceeds this value,
a Threshold Crossing Alert (TCA) should be sent.
Reading will present the threshold value. Writing will
set the value of the threshold.
The write operation is not restricted in this document
and can be done at any time. Changing
dot3ExtPkgOptIfUpperOutputPowerThreshold can lead to a Threshold
Crossing Alert (TCA) being sent for the respective interface.
This alert may be leading to an interruption of service of the
users connected to the respective EPON interface, depending on
the system action on such an alert.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
::= { dot3ExtPkgOptIfEntry 11 }
dot3ExtPkgOptIfSignalDetect OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"When getting true(1), there is a valid optical signal at
the receive that is above the optical power level for
signal detection. When getting false(2) the optical
signal at the receive is below the optical power level
Khermosh Standards Track [Page 79]
RFC 4837 Managed Objects of EPON July 2007
for signal detection.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
DEFVAL { false }
::= { dot3ExtPkgOptIfEntry 12 }
dot3ExtPkgOptIfTransmitAlarm OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"When getting true(1) there is a non-valid optical signal
at the transmit of the interface, either a higher level
or lower level than expected. When getting false(2) the
optical signal at the transmit is valid and in the
required range.
This object is applicable for an OLT and an ONU. At the
OLT, it has a distinct value for each virtual interface."
DEFVAL { false }
::= { dot3ExtPkgOptIfEntry 13 }
dot3ExtPkgOptIfTransmitEnable OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Setting this object to true(1) will cause the optical
interface to start transmission (according to the
control protocol specified for the logical interface).
Setting this object to false(2) will cause the
interface to stop the optical transmission.
When getting true(1), the optical interface is in
transmitting mode (obeying to the logical control
protocol).
When getting false(2), the optical interface is not in
transmitting mode.
The write operation is not restricted in this document
and can be done at any time. Changing
dot3ExtPkgOptIfTransmitEnable state can lead to a halt
in the optical transmission of the respective interface
leading to an interruption of service of the users
connected to the respective EPON interface.
The object is relevant when the admin state of the
interface is active as set by the dot3MpcpAdminState.
This object is applicable for an OLT and an ONU. At the
OLT it, has a distinct value for each virtual interface."
DEFVAL { false }
::= { dot3ExtPkgOptIfEntry 14 }
Khermosh Standards Track [Page 80]
RFC 4837 Managed Objects of EPON July 2007
-- Conformance Statements
-- Conformance Groups
dot3EponGroups OBJECT IDENTIFIER ::= { dot3EponConformance 1 }
dot3MpcpGroupBase OBJECT-GROUP
OBJECTS {
dot3MpcpOperStatus,
dot3MpcpAdminState,
dot3MpcpMode,
dot3MpcpSyncTime,
dot3MpcpLinkID,
dot3MpcpRemoteMACAddress,
dot3MpcpRegistrationState,
dot3MpcpMaximumPendingGrants,
dot3MpcpTransmitElapsed,
dot3MpcpReceiveElapsed,
dot3MpcpRoundTripTime
}
STATUS current
DESCRIPTION
"A collection of objects of dot3 Mpcp Control entity state
definition. Objects are per LLID."
::= { dot3EponGroups 1 }
dot3MpcpGroupStat OBJECT-GROUP
OBJECTS {
dot3MpcpMACCtrlFramesTransmitted,
dot3MpcpMACCtrlFramesReceived,
dot3MpcpDiscoveryWindowsSent,
dot3MpcpDiscoveryTimeout,
dot3MpcpTxRegRequest,
dot3MpcpRxRegRequest,
dot3MpcpTxRegAck,
dot3MpcpRxRegAck,
dot3MpcpTxReport,
dot3MpcpRxReport,
dot3MpcpTxGate,
dot3MpcpRxGate,
dot3MpcpTxRegister,
dot3MpcpRxRegister
}
STATUS current
DESCRIPTION
"A collection of objects of dot3 Mpcp Statistics.
Objects are per LLID."
::= { dot3EponGroups 2 }
Khermosh Standards Track [Page 81]
RFC 4837 Managed Objects of EPON July 2007
dot3OmpeGroupID OBJECT-GROUP
OBJECTS {
dot3OmpEmulationType
}
STATUS current
DESCRIPTION
"A collection of objects of dot3 OMP emulation entity
state definition. Objects are per LLID."
::= { dot3EponGroups 3 }
dot3OmpeGroupStat OBJECT-GROUP
OBJECTS {
dot3OmpEmulationSLDErrors,
dot3OmpEmulationCRC8Errors,
dot3OmpEmulationBadLLID,
dot3OmpEmulationGoodLLID,
dot3OmpEmulationOnuPonCastLLID,
dot3OmpEmulationOltPonCastLLID,
dot3OmpEmulationBroadcastBitNotOnuLlid,
dot3OmpEmulationOnuLLIDNotBroadcast,
dot3OmpEmulationBroadcastBitPlusOnuLlid,
dot3OmpEmulationNotBroadcastBitNotOnuLlid
}
STATUS current
DESCRIPTION
"A collection of objects of dot3 OMP emulation
Statistics. Objects are per LLID."
::= { dot3EponGroups 4 }
dot3EponFecGroupAll OBJECT-GROUP
OBJECTS {
dot3EponFecPCSCodingViolation,
dot3EponFecAbility,
dot3EponFecMode,
dot3EponFecCorrectedBlocks,
dot3EponFecUncorrectableBlocks,
dot3EponFecBufferHeadCodingViolation
}
STATUS current
DESCRIPTION
"A collection of objects of dot3 FEC group control and
statistics. Objects are per LLID."
::= { dot3EponGroups 5 }
dot3ExtPkgGroupControl OBJECT-GROUP
OBJECTS {
dot3ExtPkgObjectReset,
Khermosh Standards Track [Page 82]
RFC 4837 Managed Objects of EPON July 2007
dot3ExtPkgObjectPowerDown,
dot3ExtPkgObjectNumberOfLLIDs,
dot3ExtPkgObjectFecEnabled,
dot3ExtPkgObjectReportMaximumNumQueues,
dot3ExtPkgObjectRegisterAction
}
STATUS current
DESCRIPTION
"A collection of objects of dot3ExtPkg control
definition. Objects are per LLID."
::= { dot3EponGroups 6 }
dot3ExtPkgGroupQueue OBJECT-GROUP
OBJECTS {
dot3ExtPkgObjectReportNumThreshold,
dot3ExtPkgObjectReportMaximumNumThreshold,
dot3ExtPkgStatTxFramesQueue,
dot3ExtPkgStatRxFramesQueue,
dot3ExtPkgStatDroppedFramesQueue
}
STATUS current
DESCRIPTION
"A collection of objects of dot3ExtPkg Queue
control. Objects are per LLID, per queue."
::= { dot3EponGroups 7 }
dot3ExtPkgGroupQueueSets OBJECT-GROUP
OBJECTS {
dot3ExtPkgObjectReportThreshold
}
STATUS current
DESCRIPTION
"A collection of objects of dot3ExtPkg queue_set
control. Objects are per LLID, per queue, per
queue_set."
::= { dot3EponGroups 8 }
dot3ExtPkgGroupOptIf OBJECT-GROUP
OBJECTS {
dot3ExtPkgOptIfSuspectedFlag,
dot3ExtPkgOptIfInputPower,
dot3ExtPkgOptIfLowInputPower,
dot3ExtPkgOptIfHighInputPower,
dot3ExtPkgOptIfLowerInputPowerThreshold,
dot3ExtPkgOptIfUpperInputPowerThreshold,
dot3ExtPkgOptIfOutputPower,
dot3ExtPkgOptIfLowOutputPower,
dot3ExtPkgOptIfHighOutputPower,
Khermosh Standards Track [Page 83]
RFC 4837 Managed Objects of EPON July 2007
dot3ExtPkgOptIfLowerOutputPowerThreshold,
dot3ExtPkgOptIfUpperOutputPowerThreshold,
dot3ExtPkgOptIfSignalDetect,
dot3ExtPkgOptIfTransmitAlarm,
dot3ExtPkgOptIfTransmitEnable
}
STATUS current
DESCRIPTION
"A collection of objects of control and status indication
of the optical interface.
Objects are per LLID."
::= { dot3EponGroups 9 }
-- Compliance
dot3EponCompliances
OBJECT IDENTIFIER ::= { dot3EponConformance 2 }
dot3MPCPCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION "The compliance statement for Multi-Point
Control Protocol interfaces."
MODULE -- this module
MANDATORY-GROUPS { dot3MpcpGroupBase}
GROUP dot3MpcpGroupStat
DESCRIPTION "This group is mandatory for all MPCP supporting
interfaces for statistics collection."
::= { dot3EponCompliances 1}
dot3OmpeCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION "The compliance statement for OMPEmulation
interfaces."
MODULE -- this module
MANDATORY-GROUPS { dot3OmpeGroupID}
GROUP dot3OmpeGroupStat
DESCRIPTION "This group is mandatory for all OMPemulation
supporting interfaces for statistics collection."
::= { dot3EponCompliances 2}
dot3EponFecCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION "The compliance statement for FEC EPON interfaces.
Khermosh Standards Track [Page 84]
RFC 4837 Managed Objects of EPON July 2007
This group is mandatory for all FEC supporting
interfaces for control and statistics collection."
MODULE -- this module
MANDATORY-GROUPS { dot3EponFecGroupAll }
::= { dot3EponCompliances 3}
dot3ExtPkgCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION "The compliance statement for EPON Interfaces
using the extended package."
MODULE -- this module
MANDATORY-GROUPS { dot3ExtPkgGroupControl }
GROUP dot3ExtPkgGroupQueue
DESCRIPTION " This group is mandatory for all EPON interfaces
supporting REPORT queue management of the extended
package."
GROUP dot3ExtPkgGroupQueueSets
DESCRIPTION " This group is mandatory for all EPON interfaces
supporting REPORT queue_sets management of the
extended package."
GROUP dot3ExtPkgGroupOptIf
DESCRIPTION "This group is mandatory for all EPON interfaces
supporting optical interfaces management,
of the extended package."
::= { dot3EponCompliances 4}
END
7. IANA Considerations
IANA has allocated a single object identifier for the MODULE-IDENTITY
of the DOT3-EPON-MIB module under the MIB-2 tree.
The MIB module in this document uses the following IANA-assigned
OBJECT IDENTIFIER values recorded in the SMI Numbers registry:
Descriptor OBJECT IDENTIFIER value
---------- -----------------------
dot3EponMIB { mib-2 155 }
Khermosh Standards Track [Page 85]
RFC 4837 Managed Objects of EPON July 2007
8. Acknowledgements
This document is the result of the efforts of the HUBMIB Working
Group. Some special thanks to Dan Romascanu, who was WG chair during
most of the development of this document, and who carefully reviewed
and commented on the initial versions of this document. Also, some
special thanks to Bert Wijnen, who is the current WG chair, for his
review and comments on the final stages of this document.
Special thanks are due to David Perkins for his detailed and helpful
MIB Doctor review of this document.
Also, some special thanks to some of the IEEE802.3ah Working Group
people for their contribution and additional reviews of the document.
9. Security Considerations
There are number of managed objects defined in this MIB module that
have a MAX-ACCESS clause of read-write or read-create. Writing to
these objects can have potentially disruptive effects on network
operation, including:
Changing dot3MpcpAdminState state can lead to disabling the
Multi-Point Control Protocol on the respective interface, leading to
the interruption of service for the users connected to the respective
EPON interface.
Changing dot3EponFecMode state can lead to disabling the Forward
Error Correction on the respective interface, which can lead to a
degradation of the optical link, and therefore may lead to an
interruption of service for the users connected to the respective
EPON interface.
Changing dot3ExtPkgObjectReset state can lead to a reset of the
respective interface leading to an interruption of service for the
users connected to the respective EPON interface.
Changing dot3ExtPkgObjectPowerDown state can lead to a power down of
the respective interface, leading to an interruption of service for
the users connected to the respective EPON interface.
Changing dot3ExtPkgObjectFecEnabled state can lead to disabling the
Forward Error Correction on the respective interface, which can lead
to a degradation of the optical link, and therefore may lead to an
interruption of service for the users connected to the respective
EPON interface.
Khermosh Standards Track [Page 86]
RFC 4837 Managed Objects of EPON July 2007
Changing dot3ExtPkgObjectRegisterAction state can lead to a change in
the registration state of the respective interface, leading to a
deregistration and an interruption of service for the users connected
to the respective EPON interface.
Changing dot3ExtPkgObjectReportNumThreshold can lead to a change in
the reporting of the ONU interface and therefore to a change in the
bandwidth allocation of the respective interface. This change may
lead a degradation or an interruption of service for the users
connected to the respective EPON interface.
Changing dot3ExtPkgObjectReportThreshold can lead to a change in the
reporting of the ONU interface and therefore to a change in the
bandwidth allocation of the respective interface. This change may
lead a degradation or an interruption of service for the users
connected to the respective EPON interface.
Changing dot3ExtPkgOptIfLowerInputPowerThreshold can lead to a
Threshold Crossing Alert (TCA) being sent for the respective
interface. This alert may be leading to an interruption of service
for the users connected to the respective EPON interface, depending
on the system action on such an alert.
Changing dot3ExtPkgOptIfUpperInputPowerThreshold can lead to a
Threshold Crossing Alert (TCA) being sent for the respective
interface. This alert may be leading to an interruption of service
for the users connected to the respective EPON interface, depending
on the system action on such an alert.
Changing dot3ExtPkgOptIfLowerOutputPowerThreshold can lead to a
Threshold Crossing Alert (TCA) being sent for the respective
interface. This alert may be leading to an interruption of service
for the users connected to the respective EPON interface, depending
on the system action on such an alert.
Changing dot3ExtPkgOptIfUpperOutputPowerThreshold can lead to a
Threshold Crossing Alert (TCA) being sent for the respective
interface. This alert may be leading to an interruption of service
for the users connected to the respective EPON interface, depending
on the system action on such an alert.
Changing dot3ExtPkgOptIfTransmitEnable state can lead to a halt in
the optical transmission of the respective interface, leading to an
interruption of service for the users connected to the respective
EPON interface.
Khermosh Standards Track [Page 87]
RFC 4837 Managed Objects of EPON July 2007
The user of this MIB module must therefore be aware that support for
SET operations in a non-secure environment without proper protection
can have a negative effect on network operations.
The readable objects in this MIB module (i.e., those with MAX-ACCESS
other than not-accessible) may be considered sensitive in some
environments since, collectively, they provide information about the
performance of network interfaces and can reveal some aspects of
their configuration. In such environments it is important to control
even GET and NOTIFY access to these objects and possibly even to
encrypt their values when sending them over the network via SNMP.
SNMP versions prior to SNMPv3 did not include adequate security.
Even if the network itself is secure (for example by using IPsec),
even then, there is no control as to who on the secure network is
allowed to access and GET/SET (read/change/create/delete) the objects
in this MIB module.
It is RECOMMENDED that implementers consider the security features as
provided by the SNMPv3 framework (see [RFC3410], section 8),
including full support for the SNMPv3 cryptographic mechanisms (for
authentication and privacy).
Further, deployment of SNMP versions prior to SNMPv3 is NOT
RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to
enable cryptographic security. It is then a customer/operator
responsibility to ensure that the SNMP entity giving access to an
instance of this MIB module is properly configured to give access to
the objects only to those principals (users) that have legitimate
rights to indeed GET or SET (change/create/delete) them.
10. References
10.1. Normative References
[802.1d] IEEE, "Institute of Electrical and Electronic
Engineers, 802.1D-2004, IEEE Standard for Local and
metropolitan area networks Media Access Control (MAC)
Bridges.", June 2004.
[802.3] IEEE, "Institute of Electrical and Electronic
Engineers, IEEE Std 802.3-2002, "IEEE Standard for
Carrier Sense Multiple Access with Collision Detection
(CSMA/CD) Access Method and Physical Layer
Specifications.", December 2002.
Khermosh Standards Track [Page 88]
RFC 4837 Managed Objects of EPON July 2007
[802.3ah] IEEE, "Institute of Electrical and Electronic
Engineers, IEEE Std 802.3ah-2004. Information
technology - Telecommunications and information
exchange between systems - Local and metropolitan area
networks - Specific requirements - Part 3: Carrier
sense multiple access with collision detection
(CSMA/CD) access method and physical layer
specifications - Media Access Control Parameters,
Physical Layers and Management Parameters for
subscriber access networks.", IEEE Std 802.3ah-2004,
October 2004.
[ITU-T.G.975] ITU, "ITU-T, SERIES G: TRANSMISSION SYSTEMS AND MEDIA,
DIGITAL SYSTEMS AND NETWORKS Digital sections and
digital line system - Optical fibre submarine cable
systems Forward error correction for submarine
systems, ITU-T Recommendation G.975", October 2000.
[ITU-T.G.983] ITU, "ITU-T, SERIES G: TRANSMISSION SYSTEMS AND MEDIA,
DIGITAL SYSTEMS AND NETWORKS, Digital transmission
systems - Digital sections and digital line system -
Optical line systems for local and access networks
Broadband optical access systems based on Passive
Optical Networks (PON), ITU-T Recommendation G.983.1",
October 1998.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC2578] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Structure of Management
Information Version 2 (SMIv2)", STD 58, RFC 2578,
April 1999.
[RFC2579] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Textual Conventions for SMIv2",
STD 58, RFC 2579, April 1999.
[RFC2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Conformance Statements for SMIv2", STD 58, RFC 2580,
April 1999.
[RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces
Group MIB", RFC 2863, June 2000.
[RFC2864] McCloghrie, K. and G. Hanson, "The Inverted Stack
Table Extension to the Interfaces Group MIB",
RFC 2864, June 2000.
Khermosh Standards Track [Page 89]
RFC 4837 Managed Objects of EPON July 2007
[RFC3635] Flick, J., "Definitions of Managed Objects for the
Ethernet-like Interface Types", RFC 3635,
September 2003.
[RFC4836] Beili, E., "Definitions of Managed Objects for IEEE
802.3 Medium Attachment Units (MAUs)", RFC 4836,
April 2007.
10.2. Informative References
[RFC1525] Decker, E., McCloghrie, K., Langille, P., and A.
Rijsinghani, "Definitions of Managed Objects for
Source Routing Bridges", RFC 1525, September 1993.
[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statements for
Internet-Standard Management Framework", RFC 3410,
December 2002.
[RFC4188] Norseth, K. and E. Bell, "Definitions of Managed
Objects for Bridges", RFC 4188, September 2005.
[RFC4878] Squire, M., "Definitions and Managed Objects for
Operations, Administration, and Maintenance (OAM)
Functions on Ethernet-Like Interfaces", RFC 4878,
June 2007.
Author's Address
Lior Khermosh
PMC-SIERRA
Kohav Hertzelia bldg,
4 Hasadnaot St.,
Hertzliya Pituach, 46120
ISRAEL
Phone: +972-9-9628000 Ext: 302
Fax: +972-9-9628001
EMail: lior_khermosh@pmc-sierra.com
Khermosh Standards Track [Page 90]
RFC 4837 Managed Objects of EPON July 2007
Full Copyright Statement
Copyright (C) The IETF Trust (2007).
This document is subject to the rights, licenses and restrictions
contained in BCP 78, and except as set forth therein, the authors
retain all their rights.
This document and the information contained herein are provided on an
"AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY, THE IETF TRUST AND
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF
THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
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The IETF invites any interested party to bring to its attention any
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this standard. Please address the information to the IETF at
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Acknowledgement
Funding for the RFC Editor function is currently provided by the
Internet Society.
Khermosh Standards Track [Page 91]