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Keywords: Network Management, Management Information Base, MIB, SMIv2, Routing, MANET, Multicast
Internet Engineering Task Force (IETF) R. Cole
Request for Comments: 7367 US Army CERDEC
Category: Experimental J. Macker
ISSN: 2070-1721 B. Adamson
Naval Research Laboratory
October 2014
Definition of Managed Objects for the Mobile Ad Hoc Network (MANET)
Simplified Multicast Framework Relay Set Process
Abstract
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in the Internet community.
In particular, it describes objects for configuring aspects of the
Simplified Multicast Forwarding (SMF) process for Mobile Ad Hoc
Networks (MANETs). The SMF-MIB module also reports state
information, performance information, and notifications. In addition
to configuration, the additional state and performance information is
useful to operators troubleshooting multicast forwarding problems.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for examination, experimental implementation, and
evaluation.
This document defines an Experimental Protocol for the Internet
community. This document is a product of the Internet Engineering
Task Force (IETF). It represents the consensus of the IETF
community. It has received public review and has been approved for
publication by the Internet Engineering Steering Group (IESG). Not
all documents approved by the IESG are a candidate for any level of
Internet Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7367.
Cole, et al. Experimental [Page 1]
RFC 7367 The SMF-MIB October 2014
Copyright Notice
Copyright (c) 2014 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction ....................................................3
2. The Internet-Standard Management Framework ......................3
3. Conventions .....................................................3
4. Overview ........................................................3
4.1. SMF Management Model .......................................4
4.2. Terms ......................................................5
5. Structure of the MIB Module .....................................5
5.1. Textual Conventions ........................................6
5.2. The Capabilities Group .....................................6
5.3. The Configuration Group ....................................6
5.4. The State Group ............................................7
5.5. The Performance Group ......................................7
5.6. The Notifications Group ....................................7
5.7. Tables and Indexing ........................................8
6. Relationship to Other MIB Modules ...............................9
6.1. Relationship to the SNMPv2-MIB .............................9
6.2. Relationship to the IP-MIB .................................9
6.3. Relationship to the IPMCAST-MIB ............................9
6.4. MIB Modules Required for IMPORTS ..........................10
6.5. Relationship to Future RSSA-MIB Modules ...................10
7. SMF-MIB Definitions ............................................10
8. IANA-SMF-MIB Definitions .......................................51
9. Security Considerations ........................................56
10. Applicability Statement .......................................59
11. IANA Considerations ...........................................62
12. References ....................................................62
12.1. Normative References .....................................62
12.2. Informative References ...................................64
Acknowledgements ..................................................65
Contributors ......................................................65
Authors' Addresses ................................................65
Cole, et al. Experimental [Page 2]
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1. Introduction
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in the Internet community.
In particular, it describes objects for configuring aspects of a
process implementing Simplified Multicast Forwarding (SMF) [RFC6621]
for Mobile Ad Hoc Networks (MANETs). SMF provides multicast
Duplicate Packet Detection (DPD) and supports algorithms for
constructing an estimate of a MANET Minimum Connected Dominating Set
(MCDS) for efficient multicast forwarding. The SMF-MIB module also
reports state information, performance information, and
notifications. In addition to configuration, this additional state
and performance information is useful to operators troubleshooting
multicast forwarding problems.
2. 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].
3. Conventions
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in RFC
2119 [RFC2119].
4. Overview
SMF provides methods for implementing DPD-based multicast forwarding
with the optional use of CDS-based relay sets. The CDS provides a
complete connected coverage of the nodes comprising the MANET. The
MCDS is the smallest set of MANET nodes (comprising a connected
cluster) that cover all the nodes in the cluster with their
transmissions. As the density of the MANET nodes increase, the
fraction of nodes required in an MCDS decreases. Using the MCDS as a
multicast forwarding set then becomes an efficient multicast
mechanism for MANETs.
Cole, et al. Experimental [Page 3]
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Various algorithms for the construction of estimates of the MCDS
exist. The Simplified Multicast Framework [RFC6621] describes some
of these. It further defines various operational modes for a node
that is participating in the collective creation of the MCDS
estimates. These modes depend upon the set of related MANET routing
and discovery protocols and mechanisms in operation in the specific
MANET node.
A SMF router's MIB module contains SMF process configuration
parameters (e.g., specific CDS algorithm), state information (e.g.,
current membership in the CDS), performance counters (e.g., packet
counters), and notifications.
4.1. SMF Management Model
This section describes the management model for the SMF node process.
Figure 1 (reproduced from Figure 1 of [RFC6621]) shows the
relationship between the SMF Relay Set Selection Algorithm and the
related algorithms, processes, and protocols running in the MANET
nodes. The Relay Set Selection Algorithm (RSSA) can rely upon
topology information acquired from the MANET Neighborhood Discovery
Protocol (NHDP), from the specific MANET routing protocol running on
the node, or from Layer 2 information passed up to the higher layer
protocol processes.
______________ ____________
| | | |
| Neighborhood | | Relay Set |
| Discovery |------------->| Selection |
| | neighbor | |
|______________| info |____________|
\ /
neighbor\ / forwarding
info* \ _____________ / status
\ | | /
`-->| Forwarding |<--'
| Process |
----------------->|_____________|----------------->
incoming packet, forwarded packets
interface id*, and
previous hop*
Figure 1: SMF Router Architecture
The asterisks (*) mark the primitives and relationships needed by
relay set algorithms requiring previous-hop packet-forwarding
knowledge.
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4.2. Terms
The following definitions apply throughout this document:
Configuration Objects: switches, tables, and objects that are
initialized to default settings or set through the management
interfaces such as defined by this MIB module.
Tunable Configuration Objects: objects whose values affect timing or
attempt bounds on the SMF Relay Set (RS) process.
State Objects: automatically generated values that define the
current operating state of the SMF RS process in the router.
Performance Objects: automatically generated values that help an
administrator or automated tool to assess the performance of the
CDS multicast process on the router and the overall multicast
performance within the MANET routing domain.
5. Structure of the MIB Module
This section presents the structure of the SMF-MIB module. The
objects are arranged into the following groups:
o smfMIBNotifications - defines the notifications associated with
the SMF process.
o smfMIBObjects - defines the objects forming the basis for the SMF-
MIB module. These objects are divided up by function into the
following groups:
* Capabilities Group - This group contains the SMF objects that
the device uses to advertise its local capabilities with
respect to, e.g., the supported RSSAs.
* Configuration Group - This group contains the SMF objects that
configure specific options that determine the overall operation
of the SMF process and the resulting multicast performance.
* State Group - Contains information describing the current state
of the SMF process such as the Neighbor Table.
* Performance Group - Contains objects that help to characterize
the performance of the SMF process, typically counters for
statistical computations.
o smfMIBConformance - defines two, i.e., minimal and full,
conformance implementations for the SMF-MIB module.
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5.1. Textual Conventions
The Textual Conventions defined within the SMF-MIB module:
o The SmfStatus is defined within the SMF-MIB module. This contains
the current operational status of the SMF process on an interface.
The Textual Conventions defined for the SMF-MIB module and maintained
by IANA are:
o The IANAsmfOpModeIdTC represents an index that identifies a
specific SMF operational mode. This Textual Convention is
maintained by IANA in the IANA-SMF-MIB.
o The IANAsmfRssaIdTC represents an index that identifies, through
reference, a specific RSSA available for operation on the device.
This Textual Convention is maintained by IANA also in the IANA-
SMF-MIB.
5.2. The Capabilities Group
The SMF device supports a set of capabilities. The list of
capabilities that the device can advertise is as follows:
o Operational Mode - topology information from NHDP, CDS-aware
unicast routing, or Cross-layer from Layer 2.
o SMF RSSA - the specific RSSA operational on the device. Note that
configuration, state, and performance objects related to a
specific RSSA must be defined within a separate MIB module.
5.3. The Configuration Group
The SMF device is configured with a set of controls. Some of the
prominent configuration controls for the SMF device are:
o Operational Mode - determines from where topology information is
derived, e.g., NHDP, CDS-aware unicast routing, or Cross-layer
from Layer 2.
o SMF RSSA - the specific RSSA operational on the device.
o Duplicate Packet detection for IPv4 - Identification-based or
Hash-based DPD (I-DPD or H-DPD, respectively).
o Duplicate Packet detection for IPv6 - Identification-based or
Hash-based DPD.
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o SMF Type Message TLV - if NHDP mode is selected, then the SMF Type
Message TLV MAY be included in the NHDP exchanges.
o SMF Address Block TLV - if NHDP mode is selected, then the SMF
Address Block TLV SHOULD be included in the NHDP exchanges.
o SMF Address Forwarding Table - a table identifying configured
multicast addresses to be forwarded by the SMF process.
5.4. The State Group
The State sub-tree reports current state information, for example,
o Node RSSA State - identifies whether the node is currently in or
out of the Relay Set.
o Neighbors Table - a table containing current one-hop neighbors and
their operational RSSA.
5.5. The Performance Group
The Performance sub-tree primarily reports counters that relate to
SMF RSSA performance. The SMF performance counters consist of per-
node and per-interface objects:
o Total multicast packets received.
o Total multicast packets forwarded.
o Total duplicate multicast packets detected.
o Per interface statistics table with the following entries:
* Multicast packets received.
* Multicast packets forwarded.
* Duplicate multicast packets detected.
5.6. The Notifications Group
The Notifications sub-tree contains the list of notifications
supported within the SMF-MIB module and their intended purpose and
utility.
Cole, et al. Experimental [Page 7]
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5.7. Tables and Indexing
The SMF-MIB module contains a number of tables that record data
related to:
o configuration and operation of packet forwarding on the local
router,
o configuration and operation of local MANET interfaces on the
router, and
o configuration and operation of various RSSAs for packet
forwarding.
The SMF-MIB module's tables are indexed via the following constructs:
o smfCapabilitiesIndex - the index identifying the combination of
SMF mode and SMF RSSA available on this device.
o smfCfgAddrForwardingIndex - the index to configured multicast
address lists that are forwarded by the SMF process.
o smfCfgIfIndex - the IfIndex of the interface on the local router
on which SMF is configured.
o smfStateNeighborIpAddrType, smfStateNeighborIpAddr, and
smfStateNeighborPrefixLen - the interface index set of specific
one-hop neighbor nodes to this local router.
These tables and their associated indexing are defined in the SMF-MIB
module:
o smfCapabilitiesTable - identifies the resident set of (SMF
Operational Modes, SMF RSSA algorithms) available on this router.
This table has 'INDEX { smfCapabilitiesIndex }'.
o smfCfgAddrForwardingTable - contains information on multicast
addresses that are to be forwarded by the SMF process on this
device. This table has 'INDEX { smfCfgAddrForwardingIndex }'.
o smfCfgInterfaceTable - describes the SMF interfaces on this device
that are participating in the SMF packet forwarding process. This
table has 'INDEX { smfCfgIfIndex }'.
Cole, et al. Experimental [Page 8]
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o smfStateNeighborTable - describes the current neighbor nodes,
their addresses and the SMF RSSA and the interface on which they
can be reached. This table has 'INDEX {
smfStateNeighborIpAddrType, smfStateNeighborIpAddr,
smfStateNeighborPrefixLen }'.
o smfPerfIpv4InterfacePerfTable - contains the IPv4-related SMF
statistics per each SMF interface on this device. This table has
'INDEX { smfCfgIfIndex }'.
o smfPerfIpv6InterfacePerfTable - contains the IPv6-related SMF
statistics per each SMF interface on this device. This table has
'INDEX { smfCfgIfIndex }'.
6. Relationship to Other MIB Modules
6.1. Relationship to the SNMPv2-MIB
The 'system' group in the SNMPv2-MIB module [RFC3418] is defined as
being mandatory for all systems, and the objects apply to the entity
as a whole. The 'system' group provides identification of the
management entity and certain other system-wide data. The SMF-MIB
module does not duplicate those objects.
6.2. Relationship to the IP-MIB
It is an expectation that SMF devices will implement the standard IP-
MIB module [RFC4293]. Exactly how to integrate SMF packet handling
and management into the standard IP-MIB module management are part of
the experiment.
The SMF-MIB module counters within the smfPerformanceGroup count
packets handled by the system and interface local SMF process (as
discussed above). Not all IP (unicast and multicast) packets on a
device interface are handled by the SMF process. So the counters are
tracking different packet streams in the IP-MIB and SMF-MIB modules.
6.3. Relationship to the IPMCAST-MIB
The smfCfgAddrForwardingTable is essentially a filter table (if
populated) that identifies addresses/packets to be forwarded via the
local SMF flooding process. The IP Multicast MIB module in RFC 5132
[RFC5132] manages objects related to standard IP multicast, which
could be running in parallel to SMF on the device.
RFC 5132 manages traditional IP-based multicast (based upon multicast
routing mechanisms). The SMF-MIB module provides management for a
MANET subnet-based flooding mechanism which, may be used for
Cole, et al. Experimental [Page 9]
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multicast transport (through SMF broadcast) depending upon the MANET
dynamics and other factors regarding the MANET subnet. Further, they
may coexist in certain MANET deployments using the
smfCfgAddrForwardingTable to hand certain IP multicast addresses to
the SMF process and other IP multicast packets to be forwarded by
other multicast mechanisms that are IP route based. SMF and the
associated SMF-MIB module are experimental and these are some of the
experiments to be had with SMF and the SMF-MIB module.
6.4. MIB Modules Required for IMPORTS
The objects imported for use in the SMF-MIB module are as follows.
The MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE, Counter32,
Integer32, TimeTicks and experimental macros are imported from RFC
2578 [RFC2578]. The TEXTUAL-CONVENTION, RowStatus, and TruthValue
macros are imported from RFC 2579 [RFC2579]. The MODULE-COMPLIANCE,
OBJECT-GROUP, and NOTIFICATION-GROUP macros are imported from RFC
2580 [RFC2580]. The InterfaceIndexOrZero and ifName textual
conventions are imported from RFC 2863 [RFC2863]. The
SnmpAdminString textual convention is imported from RFC 3411
[RFC3411]. The InetAddress, InetAddressType, and
InetAddressPrefixLength textual conventions are imported from RFC
4001 [RFC4001].
6.5. Relationship to Future RSSA-MIB Modules
In a sense, the SMF-MIB module is a general front-end to a set of
yet-to-be developed RSSA-specific MIB modules. These RSSA-specific
MIB modules will define the objects for the configuration, state,
performance and notification required for the operation of these
specific RSSAs. The SMF-MIB module Capabilities Group allows the
remote management station the ability to query the router to discover
the set of supported RSSAs.
7. SMF-MIB Definitions
SMF-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
Counter32, Integer32, TimeTicks, experimental
FROM SNMPv2-SMI -- RFC 2578
TEXTUAL-CONVENTION, RowStatus, TruthValue
FROM SNMPv2-TC -- RFC 2579
Cole, et al. Experimental [Page 10]
RFC 7367 The SMF-MIB October 2014
MODULE-COMPLIANCE, OBJECT-GROUP,
NOTIFICATION-GROUP
FROM SNMPv2-CONF -- RFC 2580
InterfaceIndexOrZero, ifName
FROM IF-MIB -- RFC 2863
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB -- RFC 3411
InetAddress, InetAddressType,
InetAddressPrefixLength
FROM INET-ADDRESS-MIB -- RFC 4001
IANAsmfOpModeIdTC,
IANAsmfRssaIdTC
FROM IANA-SMF-MIB
;
smfMIB MODULE-IDENTITY
LAST-UPDATED "201410100000Z" -- October 10, 2014
ORGANIZATION "IETF MANET Working Group"
CONTACT-INFO
"WG EMail: manet@ietf.org
WG Chairs: sratliff@cisco.com
jmacker@nrl.navy.mil
Editors: Robert G. Cole
US Army CERDEC
6010 Frankford Road
Aberdeen Proving Ground, MD 21005
USA
Phone: +1 443 395-8744
EMail: robert.g.cole@us.army.mil
Joseph Macker
Naval Research Laboratory
Washington, D.C. 20375
USA
EMail: macker@itd.nrl.navy.mil
Brian Adamson
Naval Research Laboratory
Washington, D.C. 20375
USA
EMail: adamson@itd.nrl.navy.mil"
Cole, et al. Experimental [Page 11]
RFC 7367 The SMF-MIB October 2014
DESCRIPTION
"This MIB module contains managed object definitions for
the MANET SMF RSSA process defined in:
Macker, J., Ed., Simplified Multicast Forwarding, RFC 6621,
May 2012.
Copyright (c) 2014 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject
to the license terms contained in, the Simplified BSD License
set forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(http://trustee.ietf.org/license-info)."
-- Revision History
REVISION "201410100000Z" -- October 10, 2014
DESCRIPTION
"The first version of this MIB module,
published as RFC 7367.
"
::= { experimental 126 }
--
-- TEXTUAL CONVENTIONs
--
SmfStatus ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"An indication of the operability of an SMF
function or feature. For example, the status
of an interface: 'enabled' indicates that
this interface is performing SMF functions
and 'disabled' indicates that it is not.
Similarly, for the status of the device:
'enabled' indicates that the device has
enabled the SMF functions on the device and
'disabled' means that the device and all interfaces
have disabled all SMF functions."
SYNTAX INTEGER {
enabled (1),
disabled (2)
}
--
-- Top-Level Object Identifier Assignments
Cole, et al. Experimental [Page 12]
RFC 7367 The SMF-MIB October 2014
--
smfMIBNotifications OBJECT IDENTIFIER ::= { smfMIB 0 }
smfMIBObjects OBJECT IDENTIFIER ::= { smfMIB 1 }
smfMIBConformance OBJECT IDENTIFIER ::= { smfMIB 2 }
--
-- smfMIBObjects Assignments:
-- smfCapabilitiesGroup - 1
-- smfConfigurationGroup - 2
-- smfStateGroup - 3
-- smfPerformanceGroup - 4
--
--
-- smfCapabilitiesGroup
--
-- This group contains the SMF objects that identify specific
-- capabilities within this device related to SMF functions.
--
smfCapabilitiesGroup OBJECT IDENTIFIER ::= { smfMIBObjects 1 }
--
-- SMF Capabilities Table
--
smfCapabilitiesTable OBJECT-TYPE
SYNTAX SEQUENCE OF SmfCapabilitiesEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The smfCapabilitiesTable identifies the
resident set of SMF Operational Modes and
RSSA combinations that can run on this
forwarder."
REFERENCE
"See Section 7.2 'Reduced Relay Set Forwarding',
Section 8.1.1 'SMF Message TLV Type', and
the Appendices A, B, and C in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., May 2012."
::= { smfCapabilitiesGroup 1 }
smfCapabilitiesEntry OBJECT-TYPE
SYNTAX SmfCapabilitiesEntry
MAX-ACCESS not-accessible
STATUS current
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DESCRIPTION
"Information about a particular operational
mode and RSSA combination.
"
INDEX { smfCapabilitiesIndex }
::= { smfCapabilitiesTable 1 }
SmfCapabilitiesEntry ::= SEQUENCE {
smfCapabilitiesIndex Integer32,
smfCapabilitiesOpModeID IANAsmfOpModeIdTC,
smfCapabilitiesRssaID IANAsmfRssaIdTC
}
smfCapabilitiesIndex OBJECT-TYPE
SYNTAX Integer32 (1..2147483647)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The index for this entry; a unique value,
greater than zero, for each combination of
a particular operational mode and RSSA
available on this device.
It is recommended that values are assigned
contiguously starting from 1.
Rows in this table are automatically
populated by the entity's management system
on initialization.
By default, the agent should support at least the
Classical Flooding 'cF' algorithm. All compliant
SMF forwarders must support Classical Flooding.
Hence, the first entry in this table MUST exist
and MUST be defined as:
smfCapabilitiesIndex i '1'
smfCapabilitiesOpModeID i 'cfOnly(1)'
smfCapabilitiesRssaID i 'cF(1)'
The value for each combination MUST remain
constant at least from one re-initialization
of the entity's management system to the
next re-initialization."
::= { smfCapabilitiesEntry 1 }
smfCapabilitiesOpModeID OBJECT-TYPE
SYNTAX IANAsmfOpModeIdTC
MAX-ACCESS read-only
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STATUS current
DESCRIPTION
"This object identifies
the particular operational mode for this device."
::= { smfCapabilitiesEntry 2 }
smfCapabilitiesRssaID OBJECT-TYPE
SYNTAX IANAsmfRssaIdTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object identifies
the particular RSSA algorithm in this MIB
module. Example RSSAs are found in the
appendix of RFC 6621."
REFERENCE
"For example, see Section 8.1.1 'SMF Message TLV Type',
and the Appendices A, B, and C in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., May 2012."
::= { smfCapabilitiesEntry 3 }
--
-- smfConfigurationGroup
--
-- This group contains the SMF objects that configure specific
-- options that determine the overall performance and operation
-- of the multicast forwarding process for the router device
-- and its interfaces.
--
smfConfigurationGroup OBJECT IDENTIFIER ::= { smfMIBObjects 2 }
smfCfgAdminStatus OBJECT-TYPE
SYNTAX SmfStatus
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The configured status of the SMF process
on this device. 'enabled(1)' means that
SMF is configured to run on this device.
'disabled(2)' means that the SMF process
is configured off.
Prior to SMF functions being performed over
specific interfaces, this object must first
be 'enabled'. If this object is 'disabled',
then no SMF functions are being performed on
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the device and all smfCfgIfAdminStatus objects
MUST also be set to 'disabled'. When this
object is changed from 'enabled' to 'disabled'
by the manager, then all smfCfgIfAdminStatus
objects MUST also be automatically set to
'disabled' by the agent.
The default value for this object SHOULD be
'enabled'.
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
DEFVAL { enabled }
::= { smfConfigurationGroup 1 }
smfCfgSmfSysUpTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time (in hundredths of a second) since the
system SMF process was last re-initialized.
The SMF process is re-initialized when the
value of the 'smfCfgAdminStatus' object
transitions to 'enabled' from either a prior
value of 'disabled' or upon initialization
of this device."
::= { smfConfigurationGroup 2 }
smfCfgRouterIDAddrType OBJECT-TYPE
SYNTAX InetAddressType { ipv4(1), ipv6(2) }
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The address type of the address used for
the SMF ID of this router as specified
in the 'smfCfgRouterID' next.
Only the values ipv4(1) and ipv6(2)
are supported.
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
DEFVAL { ipv4 }
::= { smfConfigurationGroup 3 }
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smfCfgRouterID OBJECT-TYPE
SYNTAX InetAddress (SIZE(4|16))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The IP address used as the SMF router ID.
This can be set by the management station.
If not explicitly set, then the device
SHOULD select a routable IP address
assigned to this router for use as
the 'smfCfgRouterID'.
The smfCfgRouterID is a logical identification
that MUST be consistent across interoperable
SMF neighborhoods, and it is RECOMMENDED to be
chosen as the numerically largest address
contained in a node's 'Neighbor Address List'
as defined in NHDP. An smfCfgRouterID MUST be
unique within the scope of the operating
MANET network regardless of the method used
for selecting it.
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
REFERENCE
"For example, see
Appendix A.1 'E-CDS Relay Set Selection Overview'
and
Appendix C.1 'MPR-CDS Relay Set Selection
Overview' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
::= { smfConfigurationGroup 4 }
smfCfgOperationalMode OBJECT-TYPE
SYNTAX Integer32 (1..2147483647)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The SMF RSS node operational mode and
RSSA combination active on this
local forwarder. This object is defined
to be equal to the smfCapabilitiesIndex,
Cole, et al. Experimental [Page 17]
RFC 7367 The SMF-MIB October 2014
which identifies the specific active
operational mode and RSSA.
The default value for this object is
'1', which corresponds to:
smfCapabilitiesOpModeID i 'cfOnly(1)'
smfCapabilitiesRssaID i 'cF(1)'
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
REFERENCE
"See Section 7.2 'Reduced Relay Set Forwarding',
and the Appendices A, B, and C in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
DEFVAL { 1 }
::= { smfConfigurationGroup 5 }
smfCfgRssaMember OBJECT-TYPE
SYNTAX INTEGER {
potential(1),
always(2),
never(3)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The RSSA downselects a set of forwarders for
multicast forwarding. Sometimes it is useful
to force an agent to be included or excluded
from the resulting RSS. This object is a
switch to allow for this behavior.
The value 'potential(1)' allows the selected
RSSA to determine if this agent is included
or excluded from the RSS.
The value 'always(2)' forces the selected
RSSA to include this agent in the RSS.
The value 'never(3)' forces the selected
RSSA to exclude this agent from the RSS.
The default setting for this object is
'potential(1)'. Other settings could pose
operational risks under certain conditions.
Cole, et al. Experimental [Page 18]
RFC 7367 The SMF-MIB October 2014
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
REFERENCE
"See Section 7 'Relay Set Selection' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
DEFVAL { potential }
::= { smfConfigurationGroup 6 }
smfCfgIpv4Dpd OBJECT-TYPE
SYNTAX INTEGER {
hashBased(1),
identificationBased(2)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The current method for IPv4 duplicate packet
detection.
The value 'hashBased(1)' indicates that the
router's duplicate packet detection is based
upon comparing a hash over the packet fields.
This is the default setting for this object.
The value 'identificationBased(2)'
indicates that the duplicate packet
detection relies upon header information
in the multicast packets to identify
previously received packets.
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
REFERENCE
"See Section 6.2 'IPv4 Duplicate Packet
Detection' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
DEFVAL { hashBased }
::= { smfConfigurationGroup 7 }
smfCfgIpv6Dpd OBJECT-TYPE
SYNTAX INTEGER {
hashBased(1),
identificationBased(2)
}
Cole, et al. Experimental [Page 19]
RFC 7367 The SMF-MIB October 2014
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The current method for IPv6 duplicate packet
detection.
The values indicate the type of method used
for duplicate packet detection as described
the previous description for the object
'smfCfgIpv4Dpd'.
The default value for this object is
'hashBased(1)'.
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
REFERENCE
"See Section 6.1 'IPv6 Duplicate Packet
Detection' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
DEFVAL { hashBased }
::= { smfConfigurationGroup 8 }
smfCfgMaxPktLifetime OBJECT-TYPE
SYNTAX Integer32 (0..65535)
UNITS "Seconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The estimate of the network packet
traversal time.
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
REFERENCE
"See Section 6 'SMF Duplicate Packet
Detection' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
DEFVAL { 60 }
::= { smfConfigurationGroup 9 }
smfCfgDpdEntryMaxLifetime OBJECT-TYPE
SYNTAX Integer32 (0..65525)
UNITS "Seconds"
Cole, et al. Experimental [Page 20]
RFC 7367 The SMF-MIB October 2014
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The maximum lifetime of a cached DPD
record in the local device storage.
If the memory is running low prior to the
MaxLifetime being exceeded, the local SMF
devices should purge the oldest records first.
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
REFERENCE
"See Section 6 'SMF Duplicate Packet
Detection' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
DEFVAL { 600 }
::= { smfConfigurationGroup 10 }
--
-- Configuration of messages to be included in
-- NHDP message exchanges in support of SMF
-- operations.
--
smfCfgNhdpRssaMesgTLVIncluded OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Indicates whether or not the associated NHDP
messages include the RSSA Message TLV. This
is an optional SMF operational setting.
The value 'true(1)' indicates that this TLV is
included; the value 'false(2)' indicates that it
is not included.
It is RECOMMENDED that the RSSA Message TLV
be included in the NHDP messages.
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
REFERENCE
"See Section 8.1.1 'SMF Message TLV Type' in
RFC 6621 - 'Simplified Multicast Forwarding',
Cole, et al. Experimental [Page 21]
RFC 7367 The SMF-MIB October 2014
Macker, J., Ed., May 2012."
DEFVAL { true }
::= { smfConfigurationGroup 11 }
smfCfgNhdpRssaAddrBlockTLVIncluded OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Indicates whether or not the associated NHDP
messages include the RSSA Address Block TLV.
This is an optional SMF operational setting.
The value 'true(1)' indicates that this TLV is
included; the value 'false(2)' indicates that it
is not included.
The smfCfgNhdpRssaAddrBlockTLVIncluded is optional
in all cases as it depends on the existence of
an address block that may not be present.
If this SMF device is configured with NHDP,
then this object SHOULD be set to 'true(1)'.
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
REFERENCE
"See Section 8.1.2 'SMF Address Block TLV
Type' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
DEFVAL { true }
::= { smfConfigurationGroup 12 }
--
-- Table identifying configured multicast addresses to be forwarded.
--
smfCfgAddrForwardingTable OBJECT-TYPE
SYNTAX SEQUENCE OF SmfCfgAddrForwardingEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The smfCfgAddrForwardingTable is essentially a filter
table (if populated) that identifies addresses/packets
to be forwarded via the local SMF flooding process.
The IP Multicast MIB module in RFC 5132 manages objects
related to standard IP multicast, which could be running
in parallel to SMF on the device.
Cole, et al. Experimental [Page 22]
RFC 7367 The SMF-MIB October 2014
RFC 5132 manages traditional IP-based multicast (based
upon multicast routing mechanisms). The SMF-MIB module
provides management for a MANET subnet-based flooding
mechanism that may be used for multicast transport
(through SMF broadcast) depending upon the MANET dynamics
and other factors regarding the MANET subnet. Further,
they may coexist in certain MANET deployments
using the smfCfgAddrForwardingTable to hand certain IP
multicast addresses to the SMF process and other IP
multicast packets to be forwarded by other
multicast mechanisms that are IP route based. SMF and
the associated SMF-MIB module are experimental and these
are some of the experiments to be had with SMF and
the SMF-MIB module.
This is the (conceptual) table containing information on
multicast addresses that are to be forwarded by the SMF
process. This table represents an IP filters table for
forwarding (or not) packets based upon their IP
multicast address.
The SMF process can be configured to forward only those
multicast addresses found within the
smfCfgAddrForwardingTable. As such, addresses that are
to be forwarded by the SMF process MUST be found within
the address ranges configured within this table, unless
this table is empty.
Each row is associated with a range of multicast
addresses, and ranges for different rows must be disjoint.
Different rows MAY share a common
smfCfgAddrForwardingGroupName to administratively
associate different rows.
The objects in this table are persistent and, when written,
the entity SHOULD save the change to non-volatile storage."
REFERENCE
"See Section 9.1 'Forwarded Multicast Groups' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
::= { smfConfigurationGroup 13 }
smfCfgAddrForwardingEntry OBJECT-TYPE
SYNTAX SmfCfgAddrForwardingEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry (conceptual row) containing the information on a
Cole, et al. Experimental [Page 23]
RFC 7367 The SMF-MIB October 2014
particular multicast scope."
INDEX { smfCfgAddrForwardingIndex }
::= { smfCfgAddrForwardingTable 1 }
SmfCfgAddrForwardingEntry ::= SEQUENCE {
smfCfgAddrForwardingIndex Integer32,
smfCfgAddrForwardingGroupName SnmpAdminString,
smfCfgAddrForwardingAddrType InetAddressType,
smfCfgAddrForwardingAddress InetAddress,
smfCfgAddrForwardingAddrPrefixLength
InetAddressPrefixLength,
smfCfgAddrForwardingStatus RowStatus
}
smfCfgAddrForwardingIndex OBJECT-TYPE
SYNTAX Integer32 (1..2147483647)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This object identifies a unique entry
for a forwarding group. The index for
this entry is a unique value,
greater than zero, for each row.
It is recommended that values are assigned
contiguously starting from 1.
The value for each row index MUST remain
constant from one re-initialization
of the entity's management system to the
next re-initialization."
::= { smfCfgAddrForwardingEntry 1 }
smfCfgAddrForwardingGroupName OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object identifies a group name for a set of
row entries in order to administratively associate
a set of address ranges.
If there is no group name or this object is
otherwise not applicable, then this object contains
a zero-length string.
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
Cole, et al. Experimental [Page 24]
RFC 7367 The SMF-MIB October 2014
::= { smfCfgAddrForwardingEntry 2 }
smfCfgAddrForwardingAddrType OBJECT-TYPE
SYNTAX InetAddressType { ipv4(1), ipv6(2) }
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The type of the addresses in the multicast
forwarding ranges identified by this table.
Only the values ipv4(1) and ipv6(2) are
supported.
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
::= { smfCfgAddrForwardingEntry 3 }
smfCfgAddrForwardingAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE(4|16))
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The multicast group address that, when
combined with smfCfgAddrForwardingAddrPrefixLength,
gives the group prefix for this forwarding range.
The InetAddressType is given by
smfCfgAddrForwardingAddrType.
This address object is only significant up to
smfCfgAddrForwardingAddrPrefixLength bits. The
remaining address bits are set to zero. This is
especially important for this index field.
Any non-zero bits would signify an entirely
different entry.
Legal values correspond to the subset of address
families for which multicast address allocation
is supported.
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
::= { smfCfgAddrForwardingEntry 4 }
smfCfgAddrForwardingAddrPrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength
MAX-ACCESS read-create
Cole, et al. Experimental [Page 25]
RFC 7367 The SMF-MIB October 2014
STATUS current
DESCRIPTION
"The length in bits of the mask that, when
combined with smfCfgAddrForwardingAddress,
gives the group prefix for this forwarding
range.
This object is persistent and, when written,
the entity SHOULD save the change to
non-volatile storage."
::= { smfCfgAddrForwardingEntry 5 }
smfCfgAddrForwardingStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this row, by which new entries may be
created, or old entries deleted from this table."
::= { smfCfgAddrForwardingEntry 6 }
--
-- SMF Interfaces Configuration Table
--
smfCfgInterfaceTable OBJECT-TYPE
SYNTAX SEQUENCE OF SmfCfgInterfaceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The SMF Interface Table describes the SMF
interfaces that are participating in the
SMF packet forwarding process. The ifIndex is
from the interfaces group defined in the
Interfaces Group MIB module (RFC 2863). As such,
this table 'sparse augments' the ifTable
specifically when SMF is to be configured to
operate over this interface.
A conceptual row in this table exists if and only
if either a manager has explicitly created the row
or there is an interface on the managed device
that automatically supports and runs SMF as part
of the device's initialization process.
The manager creates a row in this table by setting
the rowStatus to 'createAndGo' or 'createAndWait'.
Row objects having associated DEFVAL clauses are
Cole, et al. Experimental [Page 26]
RFC 7367 The SMF-MIB October 2014
automatically defined by the agent with these
values during row creation, unless the manager
explicitly defines these object values during the
row creation.
As the smfCfgInterfaceTable sparsely augments the
IfTable. Hence,
+ an entry cannot exist in smfCfgInterfaceTable
without a corresponding entry in the ifTable.
+ if an entry in the ifTable is removed, the
corresponding entry (if it exists) in the
smfCfgInterfaceTable MUST be removed.
+ the smfCfgIfStatus can have a value of
'enabled' or 'disabled' independent of the
current value of the ifAdminStatus of the
corresponding entry in the ifTable.
The values of the objects smfCfgAdminStatus and
smfCfgIfAdminStatus reflect the up-down status of
the SMF process running on the device and on the
specific interfaces, respectively. Hence,
+ the value of the smfCfgAdminStatus can be
'enabled' or 'disabled' reflecting the current
running status of the SMF process on the device.
+ the value of the smfCfgIfAdminStatus can be
'enabled' or 'disabled' if the value of the
smfCfgAdminStatus is set to 'enabled'.
+ if the value of the smfCfgAdminStatus is
'disabled', then the corresponding
smfCfgIfAdminStatus objects MUST be set
to 'disabled' in the smfCfgInterfaceTable.
+ once the value of the smfCfgAdminStatus changes
from 'disabled' to 'enabled', it is up to the
management system to make the corresponding
changes to the smfCfgIfAdminStatus values
back to 'enabled'.
"
REFERENCE
"RFC 2863 - 'The Interfaces Group MIB', McCloghrie,
K., and F. Kastenholtz, June 2000."
::= { smfConfigurationGroup 14 }
Cole, et al. Experimental [Page 27]
RFC 7367 The SMF-MIB October 2014
smfCfgInterfaceEntry OBJECT-TYPE
SYNTAX SmfCfgInterfaceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The SMF interface entry describes one SMF
interface as indexed by its ifIndex.
The objects in this table are persistent and, when
written, the device SHOULD save the change to
non-volatile storage. For further information
on the storage behavior for these objects, refer
to the description for the smfCfgIfRowStatus
object."
INDEX { smfCfgIfIndex }
::= { smfCfgInterfaceTable 1 }
SmfCfgInterfaceEntry ::=
SEQUENCE {
smfCfgIfIndex InterfaceIndexOrZero,
smfCfgIfAdminStatus SmfStatus,
smfCfgIfSmfUpTime TimeTicks,
smfCfgIfRowStatus RowStatus
}
smfCfgIfIndex OBJECT-TYPE
SYNTAX InterfaceIndexOrZero
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The ifIndex for this SMF interface. This value
MUST correspond to an ifIndex referring
to a valid entry in the Interfaces Table.
If the manager attempts to create a row
for which the ifIndex does not exist on the
local device, then the agent SHOULD issue
a return value of 'inconsistentValue' and
the operation SHOULD fail."
REFERENCE
"RFC 2863 - 'The Interfaces Group MIB', McCloghrie,
K., and F. Kastenholtz, June 2000."
::= { smfCfgInterfaceEntry 1 }
smfCfgIfAdminStatus OBJECT-TYPE
SYNTAX SmfStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
Cole, et al. Experimental [Page 28]
RFC 7367 The SMF-MIB October 2014
"The SMF interface's administrative status.
The value 'enabled' denotes that the interface
is running the SMF forwarding process.
The value 'disabled' denotes that the interface is
currently external to the SMF forwarding process.
When the value of the smfCfgAdminStatus is
'disabled', then the corresponding smfCfgIfAdminStatus
objects MUST be set to 'disabled' in the
smfCfgInterfaceTable.
If this object is not equal to 'enabled', all associated
entries in the 'smfPerfIpv4InterfacePerfTable' and the
'smfPerfIpv6InterfacePerfTable' MUST be deleted.
The default value for this object is 'enabled(1)'.
This object SHOULD be persistent and when
written the device SHOULD save the change to
non-volatile storage."
DEFVAL { enabled }
::= { smfCfgInterfaceEntry 2 }
smfCfgIfSmfUpTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time (in hundredths of a second) since
this interface SMF process was last
re-initialized. The interface SMF process is
re-initialized when the value of the
'smfCfgIfAdminStatus' object transitions to 'enabled'
from either a prior value of 'disabled' or upon
initialization of this interface or this device."
::= { smfCfgInterfaceEntry 3 }
smfCfgIfRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object permits management of this table
by facilitating actions such as row creation,
construction, and destruction. The value of
this object has no effect on whether other
objects in this conceptual row can be
modified.
Cole, et al. Experimental [Page 29]
RFC 7367 The SMF-MIB October 2014
An entry may not exist in the 'active' state unless all
objects in the entry have a defined appropriate value. For
objects with DEFVAL clauses, the management station
does not need to specify the value of these objects in order
for the row to transit to the 'active' state; the default
value for these objects is used. For objects that do not
have DEFVAL clauses, the network manager MUST
specify the value of these objects prior to this row
transitioning to the 'active' state.
When this object transitions to 'active', all objects
in this row SHOULD be written to non-volatile (stable)
storage. Read-create objects in this row MAY be modified.
When an object in a row with smfCfgIfRowStatus of 'active'
is changed, then the updated value MUST be reflected in SMF
and this new object value MUST be written to non-volatile
storage."
::= { smfCfgInterfaceEntry 4 }
--
-- smfStateGroup
--
-- Contains information describing the current state of the SMF
-- process such as the current inclusion in the RS or not.
--
smfStateGroup OBJECT IDENTIFIER ::= { smfMIBObjects 3 }
smfStateNodeRsStatusIncluded OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current status of the SMF node in the context of
the MANETs relay set. A value of 'true(1)' indicates
that the node is currently part of the MANET Relay
Set. A value of 'false(2)' indicates that the node
is currently not part of the MANET Relay Set."
REFERENCE
"See Section 7 'Relay Set Selection' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
::= { smfStateGroup 1 }
smfStateDpdMemoryOverflow OBJECT-TYPE
SYNTAX Counter32
UNITS "DPD Records"
MAX-ACCESS read-only
Cole, et al. Experimental [Page 30]
RFC 7367 The SMF-MIB October 2014
STATUS current
DESCRIPTION
"The number of DPD records that had to be flushed to
prevent memory overruns for caching of these records.
The number of records to be flushed upon a buffer
overflow is an implementation specific decision.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled. In order to check for
the occurrence of such a discontinuity when monitoring
this counter object, it is recommended that the
smfCfgSmfSysUpTime object also be monitored."
REFERENCE
"See Section 6 'SMF Duplicate Packet
Detection' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
::= { smfStateGroup 2 }
--
-- SMF Neighbor Table
--
smfStateNeighborTable OBJECT-TYPE
SYNTAX SEQUENCE OF SmfStateNeighborEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The SMF StateNeighborTable describes the
current one-hop neighbor nodes, their address
and SMF RSSA, and the interface on which
they can be reached."
REFERENCE
"See Section 8 'SMF Neighborhood Discovery' and
Section 8.1. 'SMF Relay Algorithm TLV
Types' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
::= { smfStateGroup 3 }
smfStateNeighborEntry OBJECT-TYPE
SYNTAX SmfStateNeighborEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The SMF Neighbor Table contains the
set of one-hop neighbors, the interface
Cole, et al. Experimental [Page 31]
RFC 7367 The SMF-MIB October 2014
they are reachable on, and the SMF RSSA
they are currently running."
INDEX { smfStateNeighborIpAddrType,
smfStateNeighborIpAddr,
smfStateNeighborPrefixLen }
::= { smfStateNeighborTable 1 }
SmfStateNeighborEntry ::=
SEQUENCE {
smfStateNeighborIpAddrType InetAddressType,
smfStateNeighborIpAddr InetAddress,
smfStateNeighborPrefixLen InetAddressPrefixLength,
smfStateNeighborRSSA IANAsmfRssaIdTC,
smfStateNeighborNextHopInterface InterfaceIndexOrZero
}
smfStateNeighborIpAddrType OBJECT-TYPE
SYNTAX InetAddressType { ipv4(1), ipv6(2) }
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The one-hop neighbor IP address type.
Only the values 'ipv4(1)' and
'ipv6(2)' are supported."
::= { smfStateNeighborEntry 1 }
smfStateNeighborIpAddr OBJECT-TYPE
SYNTAX InetAddress (SIZE(4|16))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The one-hop neighbor Inet IPv4 or IPv6
address.
Only IPv4 and IPv6 addresses
are supported."
::= { smfStateNeighborEntry 2 }
smfStateNeighborPrefixLen OBJECT-TYPE
SYNTAX InetAddressPrefixLength
UNITS "bits"
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The prefix length. This is a decimal value that
indicates the number of contiguous, higher-order
bits of the address that make up the network
Cole, et al. Experimental [Page 32]
RFC 7367 The SMF-MIB October 2014
portion of the address."
::= { smfStateNeighborEntry 3 }
smfStateNeighborRSSA OBJECT-TYPE
SYNTAX IANAsmfRssaIdTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current RSSA running on the neighbor."
::= { smfStateNeighborEntry 4 }
smfStateNeighborNextHopInterface OBJECT-TYPE
SYNTAX InterfaceIndexOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The interface ifIndex over which the
neighbor is reachable in one-hop."
::= { smfStateNeighborEntry 6 }
--
-- SMF Performance Group
--
-- Contains objects that help to characterize the
-- performance of the SMF RSSA process, such as statistics
-- counters. There are two types of SMF RSSA statistics:
-- global counters and per-interface counters.
--
-- It is an expectation that SMF devices will
-- implement the standard IP-MIB module in RFC 4293.
-- Exactly how to integrate SMF packet handling and
-- management into the standard IP-MIB module management
-- is part of the experiment.
--
-- The SMF-MIB module counters within the
-- smfPerformanceGroup count packets handled by the
-- system and interface local SMF process (as discussed
-- above). Not all IP (unicast and multicast) packets
-- on a device interface are handled by the SMF process.
-- So the counters are tracking different packet streams
-- in the IP-MIB and SMF-MIB modules.
--
smfPerformanceGroup OBJECT IDENTIFIER ::= { smfMIBObjects 4 }
smfPerfGobalGroup OBJECT IDENTIFIER ::= { smfPerformanceGroup 1 }
--
Cole, et al. Experimental [Page 33]
RFC 7367 The SMF-MIB October 2014
-- IPv4 packet counters
--
smfPerfIpv4MultiPktsRecvTotal OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of
multicast IPv4 packets received by the
device and delivered to the SMF process.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled. In order to check for
the occurrence of such a discontinuity when monitoring
this counter object, it is recommended that the
smfCfgSmfSysUpTime object also be monitored."
::= { smfPerfGobalGroup 1 }
smfPerfIpv4MultiPktsForwardedTotal OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of
multicast IPv4 packets forwarded by the
device.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled. In order to check for
the occurrence of such a discontinuity when monitoring
this counter object, it is recommended that the
smfCfgSmfSysUpTime object also be monitored."
::= { smfPerfGobalGroup 2 }
smfPerfIpv4DuplMultiPktsDetectedTotal OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of duplicate
multicast IPv4 packets detected by the
device.
Cole, et al. Experimental [Page 34]
RFC 7367 The SMF-MIB October 2014
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled. In order to check for
the occurrence of such a discontinuity when monitoring
this counter object, it is recommended that the
smfCfgSmfSysUpTime object also be monitored."
REFERENCE
"See Section 6.2 'IPv4 Duplicate Packet
Detection' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
::= { smfPerfGobalGroup 3 }
smfPerfIpv4DroppedMultiPktsTTLExceededTotal OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of dropped
multicast IPv4 packets by the
device due to Time to Live (TTL) exceeded.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled. In order to check for
the occurrence of such a discontinuity when monitoring
this counter object, it is recommended that the
smfCfgSmfSysUpTime object also be monitored."
REFERENCE
"See Section 5 'SMF Packet Processing and
Forwarding' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
::= { smfPerfGobalGroup 4 }
smfPerfIpv4TTLLargerThanPreviousTotal OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of IPv4 packets
received that have a TTL larger than that
of a previously received identical packet.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
Cole, et al. Experimental [Page 35]
RFC 7367 The SMF-MIB October 2014
disabled and later enabled. In order to check for
the occurrence of such a discontinuity when monitoring
this counter object, it is recommended that the
smfCfgSmfSysUpTime object also be monitored."
REFERENCE
"See Section 5 'SMF Packet Processing and
Forwarding' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
::= { smfPerfGobalGroup 5 }
--
-- IPv6 packet counters
--
smfPerfIpv6MultiPktsRecvTotal OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of
multicast IPv6 packets received by the
device and delivered to the SMF process.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled. In order to check for
the occurrence of such a discontinuity when monitoring
this counter object, it is recommended that the
smfCfgSmfSysUpTime object also be monitored."
::= { smfPerfGobalGroup 6 }
smfPerfIpv6MultiPktsForwardedTotal OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of
multicast IPv6 packets forwarded by the
device.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled. In order to check for
the occurrence of such a discontinuity when monitoring
this counter object, it is recommended that the
Cole, et al. Experimental [Page 36]
RFC 7367 The SMF-MIB October 2014
smfCfgSmfSysUpTime object also be monitored."
::= { smfPerfGobalGroup 7 }
smfPerfIpv6DuplMultiPktsDetectedTotal OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of duplicate
multicast IPv6 packets detected by the
device.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled. In order to check for
the occurrence of such a discontinuity when monitoring
this counter object, it is recommended that the
smfCfgSmfSysUpTime object also be monitored."
REFERENCE
"See Section 6.1 'IPv6 Duplicate Packet
Detection' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
::= { smfPerfGobalGroup 8 }
smfPerfIpv6DroppedMultiPktsTTLExceededTotal OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of dropped
multicast IPv6 packets by the
device due to TTL exceeded.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled. In order to check for
the occurrence of such a discontinuity when monitoring
this counter object, it is recommended that the
smfCfgSmfSysUpTime object also be monitored."
REFERENCE
"See Section 5 'SMF Packet Processing and
Forwarding' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
::= { smfPerfGobalGroup 9 }
Cole, et al. Experimental [Page 37]
RFC 7367 The SMF-MIB October 2014
smfPerfIpv6TTLLargerThanPreviousTotal OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of IPv6 packets
received that have a TTL larger than that
of a previously received identical packet.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled. In order to check for
the occurrence of such a discontinuity when monitoring
this counter object, it is recommended that the
smfCfgSmfSysUpTime object also be monitored."
REFERENCE
"See Section 5 'SMF Packet Processing and
Forwarding' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
::= { smfPerfGobalGroup 10 }
smfPerfIpv6HAVAssistsReqdTotal OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of IPv6 packets
received that required the Hash Assist Value (HAV)
for DPD.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled. In order to check for
the occurrence of such a discontinuity when monitoring
this counter object, it is recommended that the
smfCfgSmfSysUpTime object also be monitored."
REFERENCE
"See Section 6.1.1 'IPv6 SMF_DPD Option Header' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
::= { smfPerfGobalGroup 11 }
smfPerfIpv6DpdHeaderInsertionsTotal OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
Cole, et al. Experimental [Page 38]
RFC 7367 The SMF-MIB October 2014
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of IPv6 packets
received that the device inserted the
DPD header option.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled. In order to check for
the occurrence of such a discontinuity when monitoring
this counter object, it is recommended that the
smfCfgSmfSysUpTime object also be monitored."
REFERENCE
"See Section 6.1.2 'IPv6 Identification-Based
DPD' in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
::= { smfPerfGobalGroup 12 }
--
-- Per SMF Interface Performance Table
--
smfPerfInterfaceGroup OBJECT IDENTIFIER ::= { smfPerformanceGroup 2 }
smfPerfIpv4InterfacePerfTable OBJECT-TYPE
SYNTAX SEQUENCE OF SmfPerfIpv4InterfacePerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The SMF Interface Performance Table
describes the SMF counters per
interface."
::= { smfPerfInterfaceGroup 1 }
smfPerfIpv4InterfacePerfEntry OBJECT-TYPE
SYNTAX SmfPerfIpv4InterfacePerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The SMF Interface Performance entry
describes the statistics for a particular
node interface."
INDEX { smfCfgIfIndex }
::= { smfPerfIpv4InterfacePerfTable 1 }
SmfPerfIpv4InterfacePerfEntry ::=
Cole, et al. Experimental [Page 39]
RFC 7367 The SMF-MIB October 2014
SEQUENCE {
smfPerfIpv4MultiPktsRecvPerIf Counter32,
smfPerfIpv4MultiPktsForwardedPerIf Counter32,
smfPerfIpv4DuplMultiPktsDetectedPerIf Counter32,
smfPerfIpv4DroppedMultiPktsTTLExceededPerIf Counter32,
smfPerfIpv4TTLLargerThanPreviousPerIf Counter32
}
smfPerfIpv4MultiPktsRecvPerIf OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the number of multicast IP
packets received by the SMF process on
this device on this interface.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled on this interface.
In order to check for the occurrence of such a
discontinuity when monitoring this counter object,
it is recommended that the smfCfgIfSmfUpTime
object also be monitored."
::= { smfPerfIpv4InterfacePerfEntry 1 }
smfPerfIpv4MultiPktsForwardedPerIf OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the number of
multicast IP packets forwarded by the
SMF process on this device
on this interface.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled on this interface.
In order to check for the occurrence of such a
discontinuity when monitoring this counter object,
it is recommended that the smfCfgIfSmfUpTime
object also be monitored."
::= { smfPerfIpv4InterfacePerfEntry 2 }
smfPerfIpv4DuplMultiPktsDetectedPerIf OBJECT-TYPE
Cole, et al. Experimental [Page 40]
RFC 7367 The SMF-MIB October 2014
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the number of duplicate
multicast IP packets detected by the
SMF process on this device
on this interface.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled on this interface.
In order to check for the occurrence of such a
discontinuity when monitoring this counter object,
it is recommended that the smfCfgIfSmfUpTime
object also be monitored."
::= { smfPerfIpv4InterfacePerfEntry 3 }
smfPerfIpv4DroppedMultiPktsTTLExceededPerIf OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of dropped
multicast IPv4 packets by the SMF process
on this device on this interface
due to TTL exceeded.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled on this interface.
In order to check for the occurrence of such a
discontinuity when monitoring this counter object,
it is recommended that the smfCfgIfSmfUpTime
object also be monitored."
::= { smfPerfIpv4InterfacePerfEntry 4 }
smfPerfIpv4TTLLargerThanPreviousPerIf OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of IPv4 packets
received by the SMF process on this device
on this interface that have a TTL larger than
Cole, et al. Experimental [Page 41]
RFC 7367 The SMF-MIB October 2014
that of a previously received identical packet.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled on this interface.
In order to check for the occurrence of such a
discontinuity when monitoring this counter object,
it is recommended that the smfCfgIfSmfUpTime
object also be monitored."
::= { smfPerfIpv4InterfacePerfEntry 5 }
smfPerfIpv6InterfacePerfTable OBJECT-TYPE
SYNTAX SEQUENCE OF SmfPerfIpv6InterfacePerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The SMF Interface Performance Table
describes the SMF counters per
interface."
::= { smfPerfInterfaceGroup 2 }
smfPerfIpv6InterfacePerfEntry OBJECT-TYPE
SYNTAX SmfPerfIpv6InterfacePerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The SMF Interface Performance entry
describes the counters for a particular
node interface."
INDEX { smfCfgIfIndex }
::= { smfPerfIpv6InterfacePerfTable 1 }
SmfPerfIpv6InterfacePerfEntry ::=
SEQUENCE {
smfPerfIpv6MultiPktsRecvPerIf Counter32,
smfPerfIpv6MultiPktsForwardedPerIf Counter32,
smfPerfIpv6DuplMultiPktsDetectedPerIf Counter32,
smfPerfIpv6DroppedMultiPktsTTLExceededPerIf Counter32,
smfPerfIpv6TTLLargerThanPreviousPerIf Counter32,
smfPerfIpv6HAVAssistsReqdPerIf Counter32,
smfPerfIpv6DpdHeaderInsertionsPerIf Counter32
}
smfPerfIpv6MultiPktsRecvPerIf OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
Cole, et al. Experimental [Page 42]
RFC 7367 The SMF-MIB October 2014
DESCRIPTION
"A counter of the number of
multicast IP packets received by the
SMF process on this device
on this interface.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled on this interface.
In order to check for the occurrence of such a
discontinuity when monitoring this counter object,
it is recommended that the smfCfgIfSmfUpTime
object also be monitored."
::= { smfPerfIpv6InterfacePerfEntry 1 }
smfPerfIpv6MultiPktsForwardedPerIf OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the number of
multicast IP packets forwarded by the
SMF process on this device
on this interface.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled on this interface.
In order to check for the occurrence of such a
discontinuity when monitoring this counter object,
it is recommended that the smfCfgIfSmfUpTime
object also be monitored."
::= { smfPerfIpv6InterfacePerfEntry 2 }
smfPerfIpv6DuplMultiPktsDetectedPerIf OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the number of duplicate
multicast IP packets detected by the
SMF process on this device
on this interface.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
Cole, et al. Experimental [Page 43]
RFC 7367 The SMF-MIB October 2014
disabled and later enabled on this interface.
In order to check for the occurrence of such a
discontinuity when monitoring this counter object,
it is recommended that the smfCfgIfSmfUpTime
object also be monitored."
::= { smfPerfIpv6InterfacePerfEntry 3 }
smfPerfIpv6DroppedMultiPktsTTLExceededPerIf OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the number of dropped
multicast IP packets by the
SMF process on this device
on this interface due to TTL
exceeded.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled on this interface.
In order to check for the occurrence of such a
discontinuity when monitoring this counter object,
it is recommended that the smfCfgIfSmfUpTime
object also be monitored."
::= { smfPerfIpv6InterfacePerfEntry 4 }
smfPerfIpv6TTLLargerThanPreviousPerIf OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of IPv6 packets
received that have a TTL larger than that
of a previously received identical packet
by the SMF process on this device on this
interface.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled on this interface.
In order to check for the occurrence of such a
discontinuity when monitoring this counter object,
it is recommended that the smfCfgIfSmfUpTime
object also be monitored."
::= { smfPerfIpv6InterfacePerfEntry 5 }
Cole, et al. Experimental [Page 44]
RFC 7367 The SMF-MIB October 2014
smfPerfIpv6HAVAssistsReqdPerIf OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of IPv6 packets
received by the SMF process on this device
on this interface that required the
HAV assist for DPD.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled on this interface.
In order to check for the occurrence of such a
discontinuity when monitoring this counter object,
it is recommended that the smfCfgIfSmfUpTime
object also be monitored."
::= { smfPerfIpv6InterfacePerfEntry 6 }
smfPerfIpv6DpdHeaderInsertionsPerIf OBJECT-TYPE
SYNTAX Counter32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter of the total number of IPv6 packets
received by the SMF process on this device
on this interface that the device inserted the
DPD header option.
There is the potential for a counter discontinuity
in this object if the system SMF process has been
disabled and later enabled on this interface.
In order to check for the occurrence of such a
discontinuity when monitoring this counter object,
it is recommended that the smfCfgIfSmfUpTime
object also be monitored."
::= { smfPerfIpv6InterfacePerfEntry 7 }
--
-- Notifications
--
smfMIBNotifObjects OBJECT IDENTIFIER ::= { smfMIBNotifications 0 }
smfMIBNotifControl OBJECT IDENTIFIER ::= { smfMIBNotifications 1 }
-- smfMIBNotifObjects
Cole, et al. Experimental [Page 45]
RFC 7367 The SMF-MIB October 2014
smfNotifAdminStatusChange NOTIFICATION-TYPE
OBJECTS { smfCfgRouterIDAddrType, -- The originator of
-- the notification.
smfCfgRouterID, -- The originator of
-- the notification.
smfCfgAdminStatus -- The new status of the
-- SMF process.
}
STATUS current
DESCRIPTION
"smfCfgAdminStatusChange is a notification sent when
the 'smfCfgAdminStatus' object changes."
::= { smfMIBNotifObjects 1 }
smfNotifConfiguredOpModeChange NOTIFICATION-TYPE
OBJECTS { smfCfgRouterIDAddrType, -- The originator of
-- the notification.
smfCfgRouterID, -- The originator of
-- the notification.
smfCfgOperationalMode -- The new Operations
-- Mode of the SMF
-- process.
}
STATUS current
DESCRIPTION
"smfNotifConfiguredOpModeChange is a notification
sent when the 'smfCfgOperationalMode' object
changes."
::= { smfMIBNotifObjects 2 }
smfNotifIfAdminStatusChange NOTIFICATION-TYPE
OBJECTS { smfCfgRouterIDAddrType, -- The originator of
-- the notification.
smfCfgRouterID, -- The originator of
-- the notification.
ifName, -- The interface whose
-- status has changed.
smfCfgIfAdminStatus -- The new status of the
-- SMF interface.
}
STATUS current
DESCRIPTION
"smfCfgIfAdminStatusChange is a notification sent when
the 'smfCfgIfAdminStatus' object changes."
::= { smfMIBNotifObjects 3 }
smfNotifDpdMemoryOverflowEvent NOTIFICATION-TYPE
OBJECTS { smfCfgRouterIDAddrType, -- The originator of
Cole, et al. Experimental [Page 46]
RFC 7367 The SMF-MIB October 2014
-- the notification.
smfCfgRouterID, -- The originator of
-- the notification.
smfStateDpdMemoryOverflow -- The counter of
-- the overflows.
}
STATUS current
DESCRIPTION
"smfNotifDpdMemoryOverflowEvents is sent when the
number of memory overflow events exceeds
the 'smfNotifDpdMemoryOverflowThreshold' within the
previous number of seconds defined by the
'smfNotifDpdMemoryOverflowWindow'."
::= { smfMIBNotifObjects 4 }
-- smfMIBNotifControl
smfNotifDpdMemoryOverflowThreshold OBJECT-TYPE
SYNTAX Integer32 (0..255)
UNITS "Events"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A threshold value for the
'smfNotifDpdmemoryOverflowEvents' object.
If the number of occurrences exceeds
this threshold within the previous
number of seconds
'smfNotifDpdMemoryOverflowWindow',
then the 'smfNotifDpdMemoryOverflowEvent'
notification is sent.
The default value for this object is
'1'."
DEFVAL { 1 }
::= { smfMIBNotifControl 1 }
smfNotifDpdMemoryOverflowWindow OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A time window value for the
'smfNotifDpdmemoryOverflowEvents' object.
If the number of occurrences exceeds
the 'smfNotifDpdMemoryOverflowThreshold'
within the previous number of seconds
'smfNotifDpdMemoryOverflowWindow',
then the 'smfNotifDpdMemoryOverflowEvent'
Cole, et al. Experimental [Page 47]
RFC 7367 The SMF-MIB October 2014
notification is sent.
The default value for this object is
'1'."
DEFVAL { 1 }
::= { smfMIBNotifControl 2 }
--
-- Compliance Statements
--
smfCompliances OBJECT IDENTIFIER ::= { smfMIBConformance 1 }
smfMIBGroups OBJECT IDENTIFIER ::= { smfMIBConformance 2 }
smfBasicCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION "The basic implementation requirements for
managed network entities that implement
the SMF RSSA process."
MODULE -- this module
MANDATORY-GROUPS { smfCapabObjectsGroup,
smfConfigObjectsGroup }
::= { smfCompliances 1 }
smfFullCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION "The full implementation requirements for
managed network entities that implement
the SMF RSSA process."
MODULE -- this module
MANDATORY-GROUPS { smfCapabObjectsGroup,
smfConfigObjectsGroup,
smfStateObjectsGroup,
smfPerfObjectsGroup,
smfNotifObjectsGroup,
smfNotificationsGroup
}
::= { smfCompliances 2 }
--
-- Units of Conformance
--
smfCapabObjectsGroup OBJECT-GROUP
OBJECTS {
smfCapabilitiesOpModeID,
smfCapabilitiesRssaID
}
Cole, et al. Experimental [Page 48]
RFC 7367 The SMF-MIB October 2014
STATUS current
DESCRIPTION
"Set of SMF configuration objects implemented
in this module."
::= { smfMIBGroups 1 }
smfConfigObjectsGroup OBJECT-GROUP
OBJECTS {
smfCfgAdminStatus,
smfCfgSmfSysUpTime,
smfCfgRouterIDAddrType,
smfCfgRouterID,
smfCfgOperationalMode,
smfCfgRssaMember,
smfCfgIpv4Dpd,
smfCfgIpv6Dpd,
smfCfgMaxPktLifetime,
smfCfgDpdEntryMaxLifetime,
smfCfgNhdpRssaMesgTLVIncluded,
smfCfgNhdpRssaAddrBlockTLVIncluded,
smfCfgAddrForwardingGroupName,
smfCfgAddrForwardingAddrType,
smfCfgAddrForwardingAddress,
smfCfgAddrForwardingAddrPrefixLength,
smfCfgAddrForwardingStatus,
smfCfgIfAdminStatus,
smfCfgIfSmfUpTime,
smfCfgIfRowStatus
}
STATUS current
DESCRIPTION
"Set of SMF configuration objects implemented
in this module."
::= { smfMIBGroups 2 }
smfStateObjectsGroup OBJECT-GROUP
OBJECTS {
smfStateNodeRsStatusIncluded,
smfStateDpdMemoryOverflow,
smfStateNeighborRSSA,
smfStateNeighborNextHopInterface
}
STATUS current
DESCRIPTION
"Set of SMF state objects implemented
Cole, et al. Experimental [Page 49]
RFC 7367 The SMF-MIB October 2014
in this module."
::= { smfMIBGroups 3 }
smfPerfObjectsGroup OBJECT-GROUP
OBJECTS {
smfPerfIpv4MultiPktsRecvTotal,
smfPerfIpv4MultiPktsForwardedTotal,
smfPerfIpv4DuplMultiPktsDetectedTotal,
smfPerfIpv4DroppedMultiPktsTTLExceededTotal,
smfPerfIpv4TTLLargerThanPreviousTotal,
smfPerfIpv6MultiPktsRecvTotal,
smfPerfIpv6MultiPktsForwardedTotal,
smfPerfIpv6DuplMultiPktsDetectedTotal,
smfPerfIpv6DroppedMultiPktsTTLExceededTotal,
smfPerfIpv6TTLLargerThanPreviousTotal,
smfPerfIpv6HAVAssistsReqdTotal,
smfPerfIpv6DpdHeaderInsertionsTotal,
smfPerfIpv4MultiPktsRecvPerIf,
smfPerfIpv4MultiPktsForwardedPerIf,
smfPerfIpv4DuplMultiPktsDetectedPerIf,
smfPerfIpv4DroppedMultiPktsTTLExceededPerIf,
smfPerfIpv4TTLLargerThanPreviousPerIf,
smfPerfIpv6MultiPktsRecvPerIf,
smfPerfIpv6MultiPktsForwardedPerIf,
smfPerfIpv6DuplMultiPktsDetectedPerIf,
smfPerfIpv6DroppedMultiPktsTTLExceededPerIf,
smfPerfIpv6TTLLargerThanPreviousPerIf,
smfPerfIpv6HAVAssistsReqdPerIf,
smfPerfIpv6DpdHeaderInsertionsPerIf
}
STATUS current
DESCRIPTION
"Set of SMF performance objects implemented
in this module by total and per interface."
::= { smfMIBGroups 4 }
smfNotifObjectsGroup OBJECT-GROUP
OBJECTS {
smfNotifDpdMemoryOverflowThreshold,
smfNotifDpdMemoryOverflowWindow
}
STATUS current
DESCRIPTION
"Set of SMF notification control
objects implemented in this module."
::= { smfMIBGroups 5 }
Cole, et al. Experimental [Page 50]
RFC 7367 The SMF-MIB October 2014
smfNotificationsGroup NOTIFICATION-GROUP
NOTIFICATIONS {
smfNotifAdminStatusChange,
smfNotifConfiguredOpModeChange,
smfNotifIfAdminStatusChange,
smfNotifDpdMemoryOverflowEvent
}
STATUS current
DESCRIPTION
"Set of SMF notifications implemented
in this module."
::= { smfMIBGroups 6 }
END
8. IANA-SMF-MIB Definitions
This section contains the IANA-SMF-MIB module. This MIB module
defines two Textual Conventions for which IANA SHOULD maintain and
keep synchronized with the registry identified below within the
IANAsmfOpModeIdTC and the IANAsmfRssaIdTC TEXTUAL-CONVENTIONs.
The IANAsmfOpModeIdTC defines an index that identifies through
reference to a specific SMF operations mode. The index is an integer
valued named-number enumeration consisting of an integer and label.
IANA is to create and maintain this Textual Convention. Future
assignments are made to anyone on a first come, first served basis.
There is no substantive review of the request, other than to ensure
that it is well-formed and does not duplicate an existing assignment.
However, requests must include a minimal amount of clerical
information, such as a point of contact (including an email address)
and a brief description of the method being identified as a new SMF
operations mode.
The IANAsmfRssaIdTC defines an index that identifies through
reference to a specific Reduced Set Selection Algorithm (RSSA). The
index is an integer valued named-number enumeration consisting of an
integer and label. IANA is to create and maintain this Textual
Convention.
Future assignments to the IANAsmfRssaIdTC for the index range 5-127
require an RFC publication (either as an IETF submission or as an
Independent submission [RFC5742]). The category of RFC MUST be
Standards Track. The specific RSSAs MUST be documented in sufficient
detail so that interoperability between independent implementations
is possible.
Cole, et al. Experimental [Page 51]
RFC 7367 The SMF-MIB October 2014
Future assignments to the IANAsmfRssaIdTC for the index range 128-239
are private or local use only, with the type and purpose defined by
the local site. No attempt is made to prevent multiple sites from
using the same value in different (and incompatible) ways. There is
no need for IANA to review such assignments (since IANA will not
record these), and assignments are not generally useful for broad
interoperability. It is the responsibility of the sites making use
of the Private Use range to ensure that no conflicts occur (within
the intended scope of use).
Future assignments to the IANAsmfRssaIdTC for the index range 240-255
are to facilitate experimentation. These require an RFC publication
(either as an IETF submission or as an Independent submission
[RFC5742]). The category of RFC MUST be Experimental. The RSSA
algorithms MUST be documented in sufficient detail so that
interoperability between independent implementations is possible.
This MIB module references [RFC3626], [RFC5614], [RFC6621], and
[RFC7181].
IANA-SMF-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, mib-2
FROM SNMPv2-SMI -- RFC 2578
TEXTUAL-CONVENTION
FROM SNMPv2-TC; -- RFC 2579
ianaSmfMIB MODULE-IDENTITY
LAST-UPDATED "201410100000Z" -- October 10, 2014
ORGANIZATION "IANA"
CONTACT-INFO "Internet Assigned Numbers Authority
Postal: ICANN
12025 Waterfront Drive, Suite 300
Los Angeles, CA 90094-2536
United States
Tel: +1 310 301 5800
EMail: iana@iana.org"
DESCRIPTION "This MIB module defines the
IANAsmfOpModeIdTC and IANAsmfRssaIdTC
Textual Conventions, and thus the
enumerated values of the
smfCapabilitiesOpModeID and
smfCapabilitiesRssaID objects defined
in the SMF-MIB."
REVISION "201410100000Z" -- October 10, 2014
Cole, et al. Experimental [Page 52]
RFC 7367 The SMF-MIB October 2014
DESCRIPTION
"Initial version of this MIB as published in RFC 7367.
Copyright (c) 2014 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject
to the license terms contained in, the Simplified BSD License
set forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(http://trustee.ietf.org/license-info).
"
::= { mib-2 225 }
IANAsmfOpModeIdTC ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"An index that identifies through reference to a specific
SMF operations mode. There are basically three styles
of SMF operation with reduced relay sets currently
identified:
Independent operation 'independent(1)' -
SMF performs its own relay
set selection using information from an associated
MANET NHDP process.
CDS-aware unicast routing operation 'routing(2)'-
a coexistent unicast routing
protocol provides dynamic relay
set state based upon its own control plane
Connected Dominating Set (CDS) or neighborhood
discovery information.
Cross-layer operation 'crossLayer(3)' -
SMF operates using neighborhood
status and triggers from a
cross-layer information base for dynamic relay
set selection and maintenance.
IANA MUST update this Textual Convention accordingly.
The definition of this Textual Convention with the
addition of newly assigned values is updated
periodically by the IANA, in the
IANA-maintained registries. (The
latest arrangements can be obtained by contacting the
IANA.)
Cole, et al. Experimental [Page 53]
RFC 7367 The SMF-MIB October 2014
Requests for new values SHOULD be made to IANA via
email (iana@iana.org)."
REFERENCE
"See Section 7.2 'Reduced Relay Set Forwarding',
and the Appendices A, B, and C in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012."
SYNTAX INTEGER {
independent (1),
routing (2),
crossLayer (3)
-- future (4-255)
}
IANAsmfRssaIdTC ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"An index that identifies through reference to specific
RSSAs. Several are currently defined
in the Appendices A, B, and C of RFC 6621.
Examples of RSSAs already identified within
this Textual Convention (TC) are:
Classical Flooding (cF(1)) - is the standard
flooding algorithm where each node in the next
retransmits the information on each of its interfaces.
Source-Based Multipoint Relay (sMPR(2)) -
this algorithm is used by Optimized Link State Routing
(OLSR) and OLSR version 2 (OLSRv2) protocols for the
relay of link state updates and other control
information (RFC 3626, RFC 7181). Since each router
picks its neighboring relays independently, sMPR
forwarders depend upon previous hop information
(e.g., source Media Access Control (MAC) address) to
operate correctly.
Essential Connected Dominating Set (eCDS(3)) -
defined in RFC 5614, this algorithm forms a single
CDS mesh for the SMF operating region. Its
packet-forwarding rules are not dependent upon
previous hop knowledge in contrast to sMPR.
Multipoint Relay Connected Dominating Set (mprCDS(4)) -
This algorithm is an extension to the basic sMPR
election algorithm that results in a shared
(non-source-specific) SMF CDS. Thus, its forwarding
Cole, et al. Experimental [Page 54]
RFC 7367 The SMF-MIB October 2014
rules are not dependent upon previous hop information,
similar to eCDS.
IANA MUST update this Textual Convention accordingly.
The definition of this Textual Convention with the
addition of newly assigned values is updated
periodically by the IANA, in the
IANA-maintained registries. (The
latest arrangements can be obtained by contacting the
IANA.)
Requests for new values SHOULD be made to IANA via
email (iana@iana.org)."
REFERENCE
"For example, see:
Section 8.1.1. 'SMF Message TLV Type' and the Appendices
A, B, and C in
RFC 6621 - 'Simplified Multicast Forwarding',
Macker, J., Ed., May 2012.
RFC 3626 - Clausen, T., Ed., and P. Jacquet, Ed., 'Optimized
Link State Routing Protocol (OLSR)', October 2003.
RFC 5614 - Ogier, R. and P. Spagnolo, 'Mobile Ad Hoc
Network (MANET) Extension of OSPF Using Connected
Dominating Set (CDS) Flooding', August 2009.
RFC 7181 - Clausen, T., Dearlove, C., Jacquet, P., and
U. Herberg, 'The Optimized Link State Routing Protocol
Version 2', April 2014."
SYNTAX INTEGER {
cF(1),
sMPR(2),
eCDS(3),
mprCDS(4)
-- future(5-127)
-- noStdAction(128-239)
-- experimental(240-255)
}
END
Cole, et al. Experimental [Page 55]
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9. Security Considerations
This section discusses security implications of the choices made in
this SMF-MIB module.
There are a number of management objects defined in this MIB module
with a MAX-ACCESS clause of read-write and/or read-create. Such
objects may be considered sensitive or vulnerable in some network
environments. The support for SET operations in a non-secure
environment without proper protection can have a negative effect on
network operations. These are the tables and objects and their
sensitivity/vulnerability:
o 'smfCfgAdminStatus' - this writable configuration object controls
the operational status of the SMF process. If this setting is
configured inconsistently across the MANET multicast domain, then
delivery of multicast data may be inconsistent across the domain;
some nodes may not receive multicast data intended for them.
o 'smfCfgRouterIDAddrType' and 'smfCfgRouterID' - these writable
configuration objects define the ID of the SMF process. These
objects should be configured with a routable address defined on
the local SMF device. The smfCfgRouterID is a logical
identification that MUST be configured as unique across
interoperating SMF neighborhoods, and it is RECOMMENDED to be
chosen as the numerically largest address contained in a node's
'Neighbor Address List' as defined in NHDP. A smfCfgRouterID MUST
be unique within the scope of the operating MANET network
regardless of the method used for selecting it. If these objects
are misconfigured or configured inconsistently across the MANET,
then the ability of various RSSAs, e.g., eCDS, may be compromised.
This would potentially result in some routers within the MANET not
receiving multicast packets destine to them. Hence, intentionally
misconfiguring these objects could pose a form of Denial-of-
Service (DoS) attack against the MANET.
o 'smfCfgOpMode' - this writable configuration object defines the
operational mode of the SMF process. The operational mode defines
how the SMF process receives its data to form its local estimate
of the CDS. It is recommended that the value for this object be
set consistently across the MANET to ensure proper operation of
the multicast packet forwarding. If the value for this object is
set inconsistently across the MANET, the result may be that
multicast packet delivery will be compromised within the MANET.
Hence, intentionally misconfiguring this object could pose a form
DoS attack against the MANET.
Cole, et al. Experimental [Page 56]
RFC 7367 The SMF-MIB October 2014
o 'smfCfgRssa' - this writable configuration object sets the
specific RSSA for the SMF process. If this object is set
inconsistently across the MANET domain, multicast delivery of data
will likely fail. Hence, intentionally misconfiguring this object
could pose a form DoS attack against the MANET.
o 'smfCfgRssaMember' - this writable configuration object sets the
'interest' of the local SMF node in participating in the CDS.
Setting this object to 'never(3)' on a highly connected device
could lead to frequent island formation. Setting this object to
'always(2)' could support data ex-filtration from the MANET
domain.
o 'smfCfgIpv4Dpd' - this writable configuration object sets the
duplicate packet detection method, i.e., H-DPD or I-DPD, for
forwarding of IPv4 multicast packets. Forwarders may operate with
mixed H-DPD and I-DPD modes as long as they consistently perform
the appropriate DPD routines outlined in [RFC6621]. However, it
is RECOMMENDED that a deployment be configured with a common mode
for operational consistency.
o 'smfCfgIpv6Dpd' - this writable configuration object sets the
duplicate packet detection method for the forwarding of IPv6
multicast packets. Since IPv6 SMF does specify an option header,
the interoperability constraints are not as loose as in the IPv4
version, and forwarders SHOULD NOT operate with mixed H-DPD and
I-DPD modes. Hence, the value for this object SHOULD be
consistently set within the forwarders comprising the MANET, else
inconsistent forwarding may result unnecessary multicast packet
dropping.
o 'smfCfgMaxPktLifetime' - this writable configuration object sets
the estimate of the network packet traversal time. If set too
small, this could lead to poor multicast data delivery ratios
throughout the MANET domain. This could serve as a form of DoS
attack if this object value is set too small.
o 'smfCfgDpdEntryMaxLifetime' - this writable configuration object
sets the maximum lifetime (in seconds) for the cached DPD records
for the combined IPv4 and IPv6 methods. If the memory is running
low prior to the MaxLifetime being exceeded, the local SMF devices
should purge the oldest records first. If this object value is
set too small, then the effectiveness of the SMF DPD algorithms
may become greatly diminished causing a higher than necessary
packet load on the MANET.
Cole, et al. Experimental [Page 57]
RFC 7367 The SMF-MIB October 2014
o 'smfCfgNhdpRssaMesgTLVIncluded' - this writable configuration
object indicates whether or not the associated NHDP messages
include the RSSA Message TLV. It is highly RECOMMENDED that this
object be set to 'true(1)' when the SMF operation mode is set to
independent as this information will inform the local forwarder of
the RSSA implemented in neighboring forwarders and is used to
ensure consistent forwarding across the MANET. While it is
possible that SMF neighbors MAY be configured differently with
respect to the RSSA and still operate cooperatively, but these
cases will vary dependent upon the algorithm types designated and
this situation SHOULD be avoided.
o 'smfCfgNhdpRssaAddrBlockTLVIncluded' - this writable configuration
object indicates whether or not the associated NHDP messages
include the RSSA Address Block TLV. The
smfNhdpRssaAddrBlockTLVIncluded is optional in all cases as it
depends on the existence of an address block that may not be
present. If this SMF device is configured with NHDP, then this
object should be set to 'true(1)' as this TLV enables CDS relay
algorithm operation and configuration to be shared among 2-hop
neighborhoods. Some relay algorithms require 2-hop neighbor
configuration in order to correctly select relay sets.
o 'smfCfgAddrForwardingTable' - the writable configuration objects
in this table indicate which multicast IP addresses are to be
forwarded by this SMF node. Misconfiguration of rows within this
table can limit the ability of this SMF device to properly forward
multicast data.
o 'smfCfgInterfaceTable' - the writable configuration objects in
this table indicate which SMF node interfaces are participating in
the SMF packet forwarding process. Misconfiguration of rows
within this table can limit the ability of this SMF device to
properly forward multicast data.
Some of the readable objects in this MIB module (i.e., objects with a
MAX-ACCESS other than not-accessible) may be considered sensitive or
vulnerable in some network environments. It is thus important to
control even GET and/or NOTIFY access to these objects and possibly
to even encrypt the values of these objects when sending them over
the network via SNMP. These are the tables and objects and their
sensitivity/vulnerability:
o 'smfNodeRsStatusIncluded' - this readable state object indicates
whether or not this SMF node is part of the CDS. Being part of
the CDS makes this node a distinguished device. It could be
exploited for data ex-filtration, or DoS attacks.
Cole, et al. Experimental [Page 58]
RFC 7367 The SMF-MIB October 2014
o 'smfStateNeighborTable' - the readable state objects in this table
indicate current neighbor nodes to this SMF node. Exposing this
information to an attacker could allow the attacker easier access
to the larger MANET domain.
The remainder of the objects in the SMF-MIB module are performance
counter objects. While these give an indication of the activity of
the SMF process on this node, it is not expected that exposing these
values poses a security risk to the MANET network.
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.
Implementations SHOULD provide the security features described by the
SNMPv3 framework (see [RFC3410]), and implementations claiming
compliance to the SNMPv3 standard MUST include full support for
authentication and privacy via the User-based Security Model (USM)
[RFC3414] with the AES cipher algorithm [RFC3826]. Implementations
MAY also provide support for the Transport Security Model (TSM)
[RFC5591] in combination with a secure transport such as SSH
[RFC5592] or TLS/DTLS [RFC6353].
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. Applicability Statement
This document describes objects for configuring parameters of the
Simplified Multicast Forwarding [RFC6621] process on a Mobile Ad Hoc
Network (MANET) router. This MIB module, denoted SMF-MIB, also
reports state and performance information and notifications. This
section provides some examples of how this MIB module can be used in
MANET network deployments. A fuller discussion of MANET network
management use cases and challenges is out of scope for this
document.
SMF is designed to allow MANET routers to forward IPv4 and IPv6
packets over the MANET and cover the MANET nodes through the
automatic discovery of efficient estimates of the Minimum Connected
Dominating Set (MCDS) of nodes within the MANET. The MCDS is
Cole, et al. Experimental [Page 59]
RFC 7367 The SMF-MIB October 2014
estimated using the Relay Set Selection Algorithms (RSSAs) discussed
within this document. In the following, three scenarios are listed
where this MIB module is useful:
o For a Parking Lot Initial Configuration Situation - it is common
for the vehicles comprising the MANET being forward deployed at a
remote location, e.g., the site of a natural disaster, to be off-
loaded in a parking lot where an initial configuration of the
networking devices is performed. The configuration is loaded into
the devices from a fixed-location Network Operations Center (NOC)
at the parking lot, and the vehicles are stationary at the parking
lot while the configuration changes are made. Standards-based
methods for configuration management from the co-located NOC are
necessary for this deployment option. The set of interesting
configuration objects for the SMF process are listed within this
MIB module.
o For Mobile vehicles with Low Bandwidth Satellite Link to a Fixed
NOC - Here the vehicles carrying the MANET routers carry multiple
wireless interfaces, one of which is a relatively low-bandwidth
on-the-move satellite connection that interconnects a fix NOC to
the nodes of the MANET. Standards-based methods for monitoring
and fault management from the fixed NOC are necessary for this
deployment option.
o For Fixed NOC and Mobile Local Manager in Larger Vehicles - for
larger vehicles, a hierarchical network management arrangement is
useful. Centralized network management is performed from a fixed
NOC while local management is performed locally from within the
vehicles. Standards-based methods for configuration, monitoring,
and fault management are necessary for this deployment option.
Here we provide an example of the simplest of configurations to
establish an operational multicast forwarding capability in a MANET.
This discussion only identifies the configuration necessary through
the SMF-MIB module and assumes that other configuration has occurred.
Assume that the MANET is to support only IPv4 addressing and that the
MANET nodes are to be configured in the context of the Parking Lot
Initialization case above. Then, the SMF-MIB module defines ten
configuration OIDs and two configuration tables, i.e., the
smfCfgAddrForwardingTable and the smfCfgInterfaceTable. Of the ten
OIDs defined, all but one, i.e., the smfCfgRouterID, have DEFVAL
clauses that allow for a functional configuration of the SMF process
within the MANET. The smfCfgRouterIDType defaults to 'ipv4' so the
smfCfgRouterID can be set as, e.g., (assuming the use of the Net-SNMP
toolkit),:
snmpset [options] <smfCfgRouterID_OID>.0 a 192.0.2.100
Cole, et al. Experimental [Page 60]
RFC 7367 The SMF-MIB October 2014
If the smfCfgAddrForwardingTable is left empty, then the SMF local
forwarder will forward all multicast addresses. So this table does
not require configuration if you want to have the MANET forward all
multicast addresses.
All that remains is to configure at least one row in the
smfCfgInterfaceTable. Assume that the node has a wireless interface
with an <ifName>='wlan0' and an <ifIndex>='1'. All of the objects in
the rows of the smfCfgInterfaceTable have a DEFVAL clause; hence,
only the RowStatus object needs to be set. So the SMF process will
be activated on the 'wlan0' interface by the following network
manager snmpset command:
snmpset [options] <smfCfgIfRowStatus>.1 i active(1)
At this point, the configured forwarder will begin a Classical
Flooding algorithm to forward all multicast addresses IPv4 packets it
receives.
To provide a more efficient multicast forwarding within the MANET,
the network manager could walk the smfCapabilitiesTable to identify
other SMF Operational Modes, for example:
snmpwalk [options] <smfCapabilitiesTable>
SMF-MIB::smfCapabilitiesIndex.1 = INTEGER: 1
SMF-MIB::smfCapabilitiesIndex.2 = INTEGER: 2
SMF-MIB::smfCapabilitiesOpModeID.1 = INTEGER: cfOnly(1)
SMF-MIB::smfCapabilitiesOpModeiD.2 = INTEGER: independent(2)
SMF-MIB::smfCapabilitiesRssaID.1 = INTEGER: cF(1)
SMF-MIB::smfCapabilitiesRssaID.2 = INTEGER: eCDS(3)
In this example, the forwarding device also supports the Essential
Connected Dominating Set (eCDS) RSSA with the forwarder in the
'independent(2)' operational mode. If the network manager were to
then issue an snmpset, for example:
snmpset [options] <smfCfgOperationalMode>.0 i 2
then the local forwarder would switch its forwarding behavior from
Classical Flooding to the more efficient eCDS flooding.
Cole, et al. Experimental [Page 61]
RFC 7367 The SMF-MIB October 2014
11. IANA Considerations
This document defines two MIB modules:
1. SMF-MIB is defined in Section 7 and is an experimental MIB
module.
2. IANA-SMF-MIB is defined in Section 8 and is an IANA MIB module
that IANA maintains.
Thus, IANA has completed three actions:
IANA has allocated an OBJECT IDENTIFIER value and recorded it in the
SMI Numbers registry in the subregistry called "SMI Experimental
Codes" under the experimental branch (1.3.6.1.3).
Decimal | Name | Description | Reference
--------+---------+---------------+------------
126 | smfMib | SMF-MIB | [RFC7367]
IANA has allocated an OBJECT IDENTIFIER value and recorded it in the
SMI Numbers registry in the subregistry called "SMI Network
Management MGMT Codes Internet-standard MIB" under the mib-2 branch
(1.3.6.1.2.1).
Decimal | Name | Description | Reference
--------+---------------+-----------------+------------
225 | ianaSmfMIB | IANA-SMF-MIB | [RFC7367]
IANA maintains a MIB module called ianaSmfMIB and has populated it
with the initial MIB module defined in Section 8 of this document by
creating a new entry in the registry "IANA Maintained MIBs" called
"IANA-SMF-MIB".
12. References
12.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997,
<http://www.rfc-editor.org/info/rfc2119>.
[RFC2578] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Structure of Management Information
Version 2 (SMIv2)", STD 58, RFC 2578, April 1999,
<http://www.rfc-editor.org/info/rfc2578>.
Cole, et al. Experimental [Page 62]
RFC 7367 The SMF-MIB October 2014
[RFC2579] McCloghrie, K., Ed., Perkins, D., Ed., and J.
Schoenwaelder, Ed., "Textual Conventions for SMIv2", STD
58, RFC 2579, April 1999,
<http://www.rfc-editor.org/info/rfc2579>.
[RFC2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Conformance Statements for SMIv2", STD 58, RFC 2580,
April 1999, <http://www.rfc-editor.org/info/rfc2580>.
[RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces Group
MIB", RFC 2863, June 2000,
<http://www.rfc-editor.org/info/rfc2863>.
[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statements for Internet-
Standard Management Framework", RFC 3410, December 2002,
<http://www.rfc-editor.org/info/rfc3410>.
[RFC3411] Harrington, D., Presuhn, R., and B. Wijnen, "An
Architecture for Describing Simple Network Management
Protocol (SNMP) Management Frameworks", STD 62, RFC 3411,
December 2002, <http://www.rfc-editor.org/info/rfc3411>.
[RFC3414] Blumenthal, U. and B. Wijnen, "User-based Security Model
(USM) for version 3 of the Simple Network Management
Protocol (SNMPv3)", STD 62, RFC 3414, December 2002,
<http://www.rfc-editor.org/info/rfc3414>.
[RFC3418] Presuhn, R., "Management Information Base (MIB) for the
Simple Network Management Protocol (SNMP)", STD 62, RFC
3418, December 2002,
<http://www.rfc-editor.org/info/rfc3418>.
[RFC3626] Clausen, T. and P. Jacquet, "Optimized Link State Routing
Protocol (OLSR)", RFC 3626, October 2003,
<http://www.rfc-editor.org/info/rfc3626>.
[RFC3826] Blumenthal, U., Maino, F., and K. McCloghrie, "The
Advanced Encryption Standard (AES) Cipher Algorithm in the
SNMP User-based Security Model", RFC 3826, June 2004,
<http://www.rfc-editor.org/info/rfc3826>.
[RFC4001] Daniele, M., Haberman, B., Routhier, S., and J.
Schoenwaelder, "Textual Conventions for Internet Network
Addresses", RFC 4001, February 2005,
<http://www.rfc-editor.org/info/rfc4001>.
Cole, et al. Experimental [Page 63]
RFC 7367 The SMF-MIB October 2014
[RFC5591] Harrington, D. and W. Hardaker, "Transport Security Model
for the Simple Network Management Protocol (SNMP)", STD
78, RFC 5591, June 2009,
<http://www.rfc-editor.org/info/rfc5591>.
[RFC5592] Harrington, D., Salowey, J., and W. Hardaker, "Secure
Shell Transport Model for the Simple Network Management
Protocol (SNMP)", RFC 5592, June 2009,
<http://www.rfc-editor.org/info/rfc5592>.
[RFC5614] Ogier, R. and P. Spagnolo, "Mobile Ad Hoc Network (MANET)
Extension of OSPF Using Connected Dominating Set (CDS)
Flooding", RFC 5614, August 2009,
<http://www.rfc-editor.org/info/rfc5614>.
[RFC5742] Alvestrand, H. and R. Housley, "IESG Procedures for
Handling of Independent and IRTF Stream Submissions", BCP
92, RFC 5742, December 2009,
<http://www.rfc-editor.org/info/rfc5742>.
[RFC6353] Hardaker, W., "Transport Layer Security (TLS) Transport
Model for the Simple Network Management Protocol (SNMP)",
STD 78, RFC 6353, July 2011,
<http://www.rfc-editor.org/info/rfc6353>.
[RFC6621] Macker, J., "Simplified Multicast Forwarding", RFC 6621,
May 2012, <http://www.rfc-editor.org/info/rfc6621>.
[RFC7181] Clausen, T., Dearlove, C., Jacquet, P., and U. Herberg,
"The Optimized Link State Routing Protocol Version 2", RFC
7181, April 2014,
<http://www.rfc-editor.org/info/rfc7181>.
12.2. Informative References
[RFC4293] Routhier, S., "Management Information Base for the
Internet Protocol (IP)", RFC 4293, April 2006,
<http://www.rfc-editor.org/info/rfc4293>.
[RFC5132] McWalter, D., Thaler, D., and A. Kessler, "IP Multicast
MIB", RFC 5132, December 2007,
<http://www.rfc-editor.org/info/rfc5132>.
Cole, et al. Experimental [Page 64]
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Acknowledgements
The authors would like to acknowledge the valuable comments from Sean
Harnedy in the early phases of the development of this MIB module.
The authors would like to thank Adrian Farrel, Dan Romascanu, Juergen
Shoenwaelder, Stephen Hanna, and Brian Haberman for their careful
review of this document and their insightful comments. We also wish
to thank the entire MANET WG for many reviews of this document.
Further, the authors would like to thank James Nguyen for his careful
review and comments on this MIB module and his work on the
definitions of the follow-on MIB modules to configure specific RSSAs
related to SMF. Further, the authors would like to acknowledge the
work of James Nguyen, Brian Little, Ryan Morgan, and Justin Dean on
their software development of the SMF-MIB.
Contributors
This MIB document uses the template authored by D. Harrington that
is based on contributions from the MIB Doctors, especially Juergen
Schoenwaelder, Dave Perkins, C.M. Heard, and Randy Presuhn.
Authors' Addresses
Robert G. Cole
US Army CERDEC
6010 Frankford Road
Aberdeen Proving Ground, Maryland 21005
United States
Phone: +1 443 395 8744
EMail: robert.g.cole@us.army.mil
Joseph Macker
Naval Research Laboratory
Washington, D.C. 20375
United States
EMail: macker@itd.nrl.navy.mil
Brian Adamson
Naval Research Laboratory
Washington, D.C. 20375
United States
EMail: adamson@itd.nrl.navy.mil
Cole, et al. Experimental [Page 65]