Network Working Group J. Cucchiara
Internet-Draft Crescent Networks
Expires February 2002 H. Sjostrand
IP Unplugged
J. Luciani
Crescent Networks
August 2001
Definitions of Managed Objects for
the Multiprotocol Label Switching, Label Distribution Protocol (LDP)
<draft-ietf-mpls-ldp-mib-08.txt>
Status of this Memo
This document is an Internet-Draft and is in full conformance with
all provisions of Section 10 of RFC 2026. Internet-Drafts are
working documents of the Internet Engineering Task Force (IETF), its
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Internet-Drafts are draft documents valid for a maximum of six months
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The list of current Internet-Drafts can be accessed at
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Distribution of this document is unlimited. Please send comments to
the Multiprotocol Label Switching (mpls) Working Group, mpls@uu.net.
Copyright Notice
Copyright (C) The Internet Society (2001). All Rights Reserved.
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 managed objects for the Multiprotocol
Label Switching, Label Distribution Protocol (LDP).
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Table of Contents
1 Introduction ................................................. 3
2 The SNMP Management Framework ................................ 3
3 Structure of the MIB ......................................... 5
3.1 Overview ................................................... 5
3.2 Future Considerations ...................................... 5
3.3 Interface Indexing ......................................... 5
3.4 Differences from the LDP Specification ..................... 5
3.5 Discussion of MIB Groups ................................... 6
3.6 The MPLS LDP General Group ................................. 6
3.6.1 The LDP Entity Table ..................................... 6
3.6.2 Changing Values After Session Establishment .............. 7
3.6.3 mplsLdpEntityAdminStatus and mplsLdpEntityRowStatus ...... 7
3.6.4 The LDP Entity Generic Objects ........................... 8
3.6.5 The LDP Entity ATM Objects ............................... 8
3.6.6 The LDP Entity Frame Relay Objects ....................... 8
3.6.7 The LDP Entity Statistics Table .......................... 8
3.6.8 The LDP Peer Table ....................................... 9
3.6.9 The LDP Hello Adjacencies Table .......................... 9
3.6.10 The LDP Session Table ................................... 9
3.6.11 The LDP ATM Session Table ............................... 9
3.6.12 The LDP Frame Relay Session Table ....................... 9
3.6.13 The LDP Session Statistics Table ........................ 10
3.6.14 The LDP Session Peer Address Table ...................... 10
3.6.15 The Mapping Tables ...................................... 10
3.6.15.1 The LDP Session In Label Map Table .................... 11
3.6.15.2 The LDP Session Out Label Map Table ................... 11
3.6.15.3 The LDP Session XC Map Table .......................... 11
3.6.16 The FEC Table ........................................... 12
3.7 The LDP Notifications Group ................................ 12
3.7.1 LDP Notifications ........................................ 12
4 MPLS Label Distribution Protocol MIB Definitions ............. 13
5 Revision History ............................................. 69
5.1 Changes from <draft-ietf-mpls-ldp-mib-07.txt> .............. 69
5.2 Changes from <draft-ietf-mpls-ldp-mib-06.txt> .............. 70
5.3 Changes from <draft-ietf-mpls-ldp-mib-05.txt> .............. 70
5.4 Changes from <draft-ietf-mpls-ldp-mib-04.txt> .............. 72
5.5 Changes from <draft-ietf-mpls-ldp-mib-03.txt> .............. 74
5.6 Changes from <draft-ietf-mpls-ldp-mib-02.txt> .............. 75
5.7 Changes from <draft-ietf-mpls-ldp-mib-01.txt> .............. 76
5.8 Changes from <draft-ietf-mpls-ldp-mib-00.txt> .............. 77
6 Acknowledgments .............................................. 78
7 References ................................................... 79
8 Security Considerations ...................................... 81
9 Authors' Addresses ........................................... 82
10 Full Copyright Statement .................................... 83
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1. Introduction
This document defines a MIB for the Label Distribution Protocol
(LDP). The Label Distribution Protocol (LDP) [18] is one of the MPLS
protocols. This MIB allows a user to configure LDP sessions as well
as monitor all LDP sessions on the device. This MIB also supports
configuration for LDP using IP, ATM or FrameRelay media.
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [21].
2. The SNMP Management Framework
The SNMP Management Framework presently consists of five major
components:
o An overall architecture, described in RFC 2571 [RFC2571].
o Mechanisms for describing and naming objects and events for the
purpose of management. The first version of this Structure of
Management Information (SMI) is called SMIv1 and described in
STD 16, RFC 1155 [RFC1155], STD 16, RFC 1212 [RFC1212] and RFC
1215 [RFC1215]. The second version, called SMIv2, is described
in STD 58, RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and
STD 58, RFC 2580 [RFC2580].
o Message protocols for transferring management information. The
first version of the SNMP message protocol is called SNMPv1 and
described in STD 15, RFC 1157 [RFC1157]. A second version of
the SNMP message protocol, which is not an Internet standards
track protocol, is called SNMPv2c and described in RFC 1901
[RFC1901] and RFC 1906 [RFC1906]. The third version of the
message protocol is called SNMPv3 and described in RFC 1906
[RFC1906], RFC 2572 [RFC2572] and RFC 2574 [RFC2574].
o Protocol operations for accessing management information. The
first set of protocol operations and associated PDU formats is
described in STD 15, RFC 1157 [RFC1157]. A second set of
protocol operations and associated PDU formats is described in
RFC 1905 [RFC1905].
o A set of fundamental applications described in RFC 2573
[RFC2573] and the view-based access control mechanism described
in RFC 2575 [RFC2575].
A more detailed introduction to the current SNMP Management Framework
can be found in RFC 2570 [RFC2570].
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Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. Objects in the MIB are
defined using the mechanisms defined in the SMI.
This memo specifies a MIB module that is compliant to the SMIv2. A
MIB conforming to the SMIv1 can be produced through the appropriate
translations. The resulting translated MIB must be semantically
equivalent, except where objects or events are omitted because no
translation is possible (use of Counter64). Some machine readable
information in SMIv2 will be converted into textual descriptions in
SMIv1 during the translation process. However, this loss of machine
readable information is not considered to change the semantics of the
MIB.
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3. Structure of the MIB
This section describes the structure of the LDP MIB.
3.1. Overview
The MIB provides objects to configure/set-up potential LDP sessions
on a specific LSR. A table is used to configure potential LDP
Sessions, where each row in the table initiates a potential LDP
Session. This is the mplsLdpEntityTable.
Another table, the mplsLdpPeerTable, is a read-only table which
records information learned via discovery or from the session
initialization message. Each row in the Peer Table represents an LDP
Peer. This table contains information which is specific to the
Entity-Peer interactions but is not appropriate for the
mplsLdpSessionTable. In other words, the Peer table contains
information which is useful but is not strictly part of the Session.
A third table is used to show the actual sessions which have been, or
are in the process of being established. Each row represents a
specific session between an Entity (on this LSR) and a peer.
3.2. Future Considerations
The LDP Specification [18] does not specify the use of VPNs or
multicast for LDP, and thus, objects related to these areas have not
been included in the MIB.
This MIB does not include VP merge configuration either. [30] does
not yet describe this capability and so it has been excluded from the
MIB.
These areas need to be specified in the LDP Specification prior to
being added in this or any other MIB.
3.3. Interface Indexing
Interface Indexes as specified in [27] are used in the MIB. The
descriptions of the ifIndexes denote which ifIndex is being used.
NOTE: the use of ifIndex is for actual existing connections.
3.4. Differences from the LDP Specification
Currently, there are 3 differences between this specification and the
LDP Specification. As previously mentioned, this MIB is almost
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entirely based on the LDP specification. The differences are
documented here in the hope to avoid any confusion between the two
documents.
The first difference is that the LDP Entity Table contains some
DEFVAL clauses which are not specified explicitely in the LDP
Specification. These values, although not documented in the LDP
Specification are widely used by existing LDP MIB implementations and
thus, have been adopted within this MIB. Please note, they can
certainly be changed during row creation or a subsequent set request.
A second difference is the mplsLdpEntityConfGenericLabelRangeTable.
This table, although provided as a way to reserve a range of generic
labels, does not exist in the LDP Specification. It was added to the
MIB due to a request from the working group and because this table
was considered useful for reserving a range of generic labels.
The third difference is documented by the TEXTUAL-CONVENTION,
MplsAtmVcIdentifier which is in the MPLS-TC-MIB [36]. This TC was
added to restrict vci values to be greater than 31 as described in
RFC 3032 [30].
3.5. Discussion of MIB Groups
Currently, there are six groups: the MPLS LDP General Group, the MPLS
LDP Generic Group, the MPLS LDP ATM Group, the MPLS LDP Frame Relay
Group, the MPLS Mapping Group and the MPLS LDP Notifications Group.
The MPLS LDP General Group and the MPLS LDP Notifications Group
should always be supported. The MPLS LDP Generic Group is specific
to Generic labels and should be supported only if LDP is using
Generic Labels. The MPLS LDP ATM Group is specific to ATM and should
be supported only if LDP is using ATM. Likewise, the MPLS LDP Frame
Relay group is specific to Frame Relay and should be supported only
if LDP is using Frame Relay. The MPLS LDP Mapping group should be
supported if and only if the tables, mplsInSegmentTable,
mplsOutSegmentTable and mplsXCTable from the LSR MIB are supported.
3.6. The MPLS LDP General Group
This group contains information about the specific LDP Entities which
are associated with this agent. Each LSR must have at least one LDP
Entity.
3.6.1. The LDP Entity Table
The LDP Entity Table provides a way to configure the LSR for using
LDP. There must be at least one LDP Entity for the LSR to support
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LDP.
Each entry/row in this table represents a single LDP Entity.
3.6.2. Changing Values After Session Establishment
According to the LDP specification [18] there is no way to manually
modify a session once session initialization starts. One way to
manually modify a session's parameters is by using SNMP to change the
MIB objects related to that session. Please note special care should
be taken if MIB objects which are used in the MPLS LDP Session
Initialization need to be modified. If the modification of any of
these MIB variables takes place anytime after the start of session
intialization, then the entire session must be halted. Any
information learned by that session must be discarded. The objects
should then be modified, and session initialization started.
For example, assume that a user wishes to change the configuration of
a Label Range which is used by a Session that has already been
established. The user should change the mplsLdpEntityAdminStatus to
"disable(2)". Setting the mplsLdpEntityAdminStatus to "disable(2)"
will cause the session to be torn down and all LSPs established due
to that session will also be torn down. Also, all information
related to that session should be removed from this MIB, and if the
LSR MIB is implemented and the optional Mapping Table objects are
implemented, then all information related to the LSPs in this session
should be removed from these MIBs. [For more information please see
the section on "The Mapping Tables".] At this point, the user could
modify the Label Range. Lastly, the user should set the
mplsLdpEntityAdminStatus to "enable(1)". At this point session
initialization should occur. The LDP Entity goes through the Session
Initialization in order to communicate the new Label Ranges to the
Peer and establish new LSPs.
3.6.3. mplsLdpEntityAdminStatus and mplsLdpEntityRowStatus
The mplsLdpEntityAdminStatus object could be viewed as having a
subset of the functionality of the mplsLdpEntityRowStatus object.
For example, the AdminStatus object has states of enable(1) and
disable(2). Setting the mplsLdpEntityAdminStatus object to
disable(2) and setting the mplsLdpEntityRowStatus object to
notInService(2) are functionally the same. The motivation behind
keeping the mplsLdpEntityAdminStatus object is that there could be
situations where a user would be given write permission to the
mplsLdpEntityAdminStatus object, but would not be given write
permission to the mplsLdpEntityRowStatus object. Having write
permission to the mplsLdpEntityRowStatus object would mean that a
user would be able to destroy a row. This was the motivation for
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keeping the two objects.
3.6.4. The LDP Entity Generic Objects
The mplsLdpEntityConfGenericLabelRangeTable is for configuring LDP
for using Generic Labels ranges. Although the LDP Specification does
not provide a way for configuring Label Ranges for Generic Labels,
the MIB does provide a way to reserve a range of generic labels
because this may be useful for LDP implementations which deploy
generic labels.
3.6.5. The LDP Entity ATM Objects
There exists two tables to configure LDP for using ATM. These tables
are the mplsLdpEntityAtmParmsTable and the
mplsLdpEntityConfAtmLabelRangeTable.
The mplsLdpEntityAtmParmsTable provides a way to configure
information which would be contained in the 'Optional Parameter'
portion of an LDP PDU Initialization Message.
The mplsLdpEntityConfAtmLabelRangeTable provides a way to configure
information which would be contained in the 'ATM Label Range
Components portion of an LDP PDU Intialization Message, see [30] and
[18].
3.6.6. The LDP Entity Frame Relay Objects
There exists two tables to configure LDP for using Frame Relay.
These tables are the mplsLdpEntityFrameRelayParmsTable and the
mplsLdpEntityConfFrLabelRangeTable.
The mplsLdpEntityFrameRelayParmsTable provides a way to configure
information which would be contained in the 'Optional Parameter'
portion of an LDP PDU Initialization Message.
The mplsLdpEntityConfFrLabelRangeTable provides a way to configure
information which would be contained in the Frame Relay Label Range
Components portion of an LDP PDU Intialization Message, see [32] and
[18].
3.6.7. The LDP Entity Statistics Table
The mplsLpdEntityStatsTable is a read-only table which contains
statistical information related to failed attempts to establish
sessions. Each row in this table is related to a single LDP entity
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and this table AUGMENTS an mplsLdpEntityEntry. This table could be
used to give insight into how to reconfigure values so that a session
could be successfully established. For example, if the
mpslLdpSessionRejectedLabelRangeErrors Counter object was increasing,
then this would indicate that the label range may need to be
adjusted.
3.6.8. The LDP Peer Table
The LDP Peer Table is a read-only table which contains information
about LDP Peers known to LDP Entities. A row in this table is related
to one or more rows in the Hello Adjacency Table and related to a
single row in the Session Table. The values in the Peer table are
relevant to a Peer and may or may not be the same values used in the
session. For example, the Peer's PathLimit information is learned
from the session initialization phase. The actual value for the
PathVectorLimit is the Peer's value and may not be part of the
session. There could be a mismatch in this value between the Entity
and the Peer. In the event of a mismatch, then the session will use
the PathLimit set by the Entity (and not the Peer).
A separate table allows for a more comprehensive and coherent MIB
model.
3.6.9. The LDP Hello Adjacencies Table
This is a table of all adjacencies between all LDP Entities and all
LDP Peers. A Session may have one or more adjacencies.
3.6.10. The LDP Session Table
The LDP Session Table is a read-only table. Each entry in this table
represents a single session between an LDP Entity and a Peer. The
mplsLdpPeerEntry AUGMENTS entries in this table.
3.6.11. The LDP ATM Session Table
The MPLS LDP ATM Session Table is a read-only table which contains
session information specific to ATM.
3.6.12. The LDP Frame Relay Session Table
The MPLS LDP Frame Relay Session Table is a read-only table which
contains session information specific to Frame Relay.
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3.6.13. The LDP Session Statistics Table
The MPLS LDP Session Stats Table is a read-only table which contains
statistical information on sessions.
3.6.14. The LDP Session Peer Address Table
The MPLS LDP Session Peer Address Table is a table which extends the
mplsLdpSessionTable. This table is a read-only table which stores
Addresses learned after session initialization via Address Message
advertisement.
3.6.15. The Mapping Tables
The Label Information Base (LIB) contains information about labels
learned by the LSR. The LIB for LDP, CR-LDP and MPLS-RSVP (i.e. all
currently defined MPLS protocols) is represented in the LSR MIB [23].
The LIB is represented by the LSR MIB's mplsXCTable (mpls Cross
Connect Table), mplsInSegmentTable (mpls In Segment (ingress label)
Table) and the mplsOutSegmentTable (mpls Out Segment (egress label)
Table). The mplsXCTable models the cross-connection of the ingress
label with a specific egress-label. The mplsInSegmentTable stores
the ingress label's information, and the mplsOutSegmentTable stores
the egress label's information.
The LDP Session that created the LSP and the LSP's (ingress label,
egress label) pair along with other information is contained in the
LSR MIB's mplsXCTable, the mplsInSegmentTable and the
mplsOutSegmentTable.
In order to utilize the LSR MIB's mplsXCTable, mplsInSegmentTable and
mplsOutSegmentTable for LDP sessions, there needed to be a mechanism
to associate (or map) LDP sessions with LDP LSPs created as a result
of those LDP sessions. The mapping tables in this MIB
(mplsLdpSesInLabelMapTable, mplsLdpSesOutLabelMapTable and
mplsLdpSesXCMapTable) are used to associate LDP LSP information in
this MIB, with the relevant entries in the LSR MIB.
The mplsInSegmentTable, the mplsOutSegmentTable and the mplsXCTable
in the LSR MIB could contain rows which were created as a result of
an LDP LSPs. Three mapping tables were added to this MIB to map LDP
Sessions to these tables in the LSR MIB. These mapping tables are
described in the next few subsections. Please note, these mapping
tables are optional and need only to be implemented if the
mplsInSegmentTable, mplsOutSegmentTable and mplsXCTable from the LSR
MIB are implemented.
In order to expedite development, these mapping objects have been
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made optional in the conformance section of the MIB.
As discussed in the section, "Changing Values after Session
Establishment", if a session is torn down, then all the information
related to this session, must be removed from the both LDP MIB and,
if implemented, from the LSR MIB.
3.6.15.1. The LDP Session In Label Map Table
The mplsLdpSesInLabelMapTable provides a way to map LDP LSPs in the
LSR MIB's mplsInSegmentTable to the LDP session which created them in
this MIB's mplsLdpSessionTable. When a session is torn down, the
mapping table, mplsLdpSesInLabelMapTable, provides a way to clean up
the related LDP entries in the mplsInSegmentTable. If an LSP is
terminated on this LSR then there will be an entry in the mapping
table which maps the session and the entry in the mplsInSegmentTable.
Please note, there may be entries which are also effected by session
teardown in the mplsXCTable. (The relationship between the
mplsInSegmentTable and the mplsXCTable and cleanup scenarios will
need to be handled and are outside of the scope of this MIB.)
This table is optional and only needs to be implemented if the LSR
MIB's mplsInSegmentTable and/or mplsXCTable are implemented.
3.6.15.2. The LDP Session Out Label Map Table
The mplsLdpSesOutLabelMapTable provides a way to map a LDP LSPs in
the LSR MIB's mplsOutSegmentTable to the LDP session which created
them in this MIB's mplsLdpSessionTable. When a session is torn down,
the mapping table, mplsLdpSesOutLabelMapTable, provides a way to
clean up the related LDP entries in the mplsOutSegmentTable. If an
LSP is created by this LSR then there will be an entry in this table
which maps the session and the entry in the mplsOutSegmentTable.
Please note, there may be entries which are also effected by session
teardown in the mplsXCTable. (The relationship between the
mplsOutSegmentTable and the mplsXCTable and cleanup scenarios will
need to be handled and are outside the scope of this MIB.)
This table is optional and only needs to be implemented if the LSR
MIB's mplsOutSegmentTable and/or mplsXCTable are implemented.
3.6.15.3. The LDP Session XC Map Table
The mplsLdpSesXCMapTable provides a way to map LDP LSPs in the LSR
MIB's mplsXCTable to the LDP session which created them in this MIB's
mplsLdpSessionTable. When a session is torn down, the mapping table,
mplsLdpSesXCMapTable, provides a way to clean up the related LDP
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entries in the mplsXCTable. If an LSP is cross-connected on this
LSR, then there will be an entry in this mapping table which maps the
session and the entry in the mplsXCTable. Please note, only true
cross-connects are represented in the mplsLdpSesXCMapTable.
This table is optional and only needs to be implemented if the LSR
MIB's mplsXCTable is implemented.
3.6.16. The FEC Table
The FEC Table is a table which contains FEC (Forwarding Equivalence
Class) information. Each entry/row represents a single FEC Element.
There is also a FEC Mapping table which maps FECs associated with the
Cross-connects.
3.7. The LDP Notifications Group
3.7.1. LDP Notifications
Currently, there are several notifications which are specific for
LDP. These are described in this section.
The mplsLdpInitSesThresholdExceeded notification indicates to the
operator that there may be a misconfigured mplsLdpEntityEntry because
the session associated with this Entity is not being established, and
the Entity keeps trying to establish the session. A side effect of
this situation is that a row in the mplsLdpSessionTable may not be
reaching the operational state as indicated by the mplsLdpSesState
object. If the value of mplsLdpEntityInitSesThreshold is 0 (zero)
then this is equal to specifying the value of inifinity for the
threshold, and the mplsLdpInitSesThresholdExceeded Trap will never be
sent.
The object, mplsLdpEntityPVLMisTrapEnabled is used to enable or
disable the sending of the mplsLdpPVLMismatch trap. If enabled, then
this trap is sent when there is a mismatch in the Path Vector Limits
between the Entity and Peer during session initialization between
that Entity and that Peer. In this situation a session could still be
established between that entity and that peer. The session uses the
value which is configured as the Entity's Path Vector Limit.
However, a trap should be sent to indicate that a mismatch occurred.
For further details, please see Section 3.5.3 of the LDP
Specification [18].
The object, mplsLdpSesUpDownTrapEnable is used to enable or disable
the sending of the mplsLdpSessionUp and mplsLdpSessionDown traps. If
enabled, then these traps are sent when there is an appropriate
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change in the mplsLdpSesState object, e.g. when sessions change state
(Up to Down for the mplsLdpSessionDown trap, or Down to Up for the
mplsLdpSessionUp trap).
4. MPLS Label Distribution Protocol MIB Definitions
MPLS-LDP-MIB DEFINITIONS ::= BEGIN
IMPORTS
OBJECT-TYPE, MODULE-IDENTITY, NOTIFICATION-TYPE,
transmission,
Integer32, Counter32, Unsigned32
FROM SNMPv2-SMI
MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
FROM SNMPv2-CONF
RowStatus, TimeInterval, TruthValue,
TimeStamp, StorageType
FROM SNMPv2-TC
InterfaceIndex, InterfaceIndexOrZero
FROM IF-MIB
AtmVpIdentifier
FROM ATM-TC-MIB
AddressFamilyNumbers
FROM IANA-ADDRESS-FAMILY-NUMBERS-MIB
MplsAtmVcIdentifier, MplsLabel,
MplsLdpGenAddr, MplsLdpIdentifier,
MplsLdpLabelTypes, MplsLsrIdentifier
FROM MPLS-TC-MIB
;
mplsLdpMIB MODULE-IDENTITY
LAST-UPDATED "200108161200Z" -- August 16, 2001
ORGANIZATION "Multiprotocol Label Switching (mpls)
Working Group"
CONTACT-INFO
"Joan Cucchiara (jcucchiara@crescentnetworks.com)
Crescent Networks
Hans Sjostrand (hans@ipunplugged.com)
ipUnplugged
James V. Luciani (jluciani@crescentnetworks.com)
Crescent Networks
Working Group Chairs:
George Swallow, email: swallow@cisco.com
Vijay Srinivasan, email: vijay@cosinecom.com
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MPLS Working Group, email: mpls@uu.net
"
DESCRIPTION
"This MIB contains managed object definitions for the
'Multiprotocol Label Switching, Label Distribution
Protocol, LDP' document."
::= { mplsMIB XXXX} -- to be assigned
--****************************************************************
mplsMIB OBJECT IDENTIFIER ::= { transmission xxxx }
mplsLdpObjects OBJECT IDENTIFIER ::= { mplsLdpMIB 1 }
mplsLdpNotifications OBJECT IDENTIFIER ::= { mplsLdpMIB 2 }
mplsLdpConformance OBJECT IDENTIFIER ::= { mplsLdpMIB 3 }
--****************************************************************
-- MPLS LDP Objects
--****************************************************************
mplsLdpLsrObjects OBJECT IDENTIFIER ::= { mplsLdpObjects 1 }
mplsLdpEntityObjects OBJECT IDENTIFIER ::= { mplsLdpObjects 2 }
--
-- The MPLS Label Distribution Protocol's
-- Label Switch Router Objects
--
mplsLdpLsrId OBJECT-TYPE
SYNTAX MplsLsrIdentifier
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The LSR's Identifier."
::= { mplsLdpLsrObjects 1 }
mplsLdpLsrLoopDetectionCapable OBJECT-TYPE
SYNTAX INTEGER {
none(1),
other(2),
hopCount(3),
pathVector(4),
hopCountAndPathVector(5)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A indication of whether this
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Label Switch Router supports
loop detection.
none(1) -- Loop Detection is not supported
on this LSR.
other(2) -- Loop Detection is supported but
by a method other than those
listed below.
hopCount(3) -- Loop Detection is supported by
Hop Count only.
pathVector(4) -- Loop Detection is supported by
Path Vector only.
hopCountAndPathVector(5) -- Loop Detection is
supported by both Hop Count
And Path Vector.
Since Loop Detection is determined during
Session Initialization, an individual session
may not be running with loop detection. This
object simply gives an indication of whether or not the
LSR has the ability to support Loop Detection and
which types."
::= { mplsLdpLsrObjects 2 }
--
-- The MPLS Label Distribution Protocol Entity Objects
--
mplsLdpEntityIndexNext OBJECT-TYPE
SYNTAX Unsigned32 (0..4294967295)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains an appropriate value to
be used for mplsLdpEntityIndex when creating
entries in the mplsLdpEntityTable. The value
0 indicates that no unassigned entries are
available. To obtain the mplsLdpEntityIndex
value for a new entry, the manager issues a
management protocol retrieval operation to obtain
the current value of this object. After each
retrieval, the agent should modify the value to
the next unassigned index."
::= { mplsLdpEntityObjects 1 }
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mplsLdpEntityTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpEntityEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains information about the
MPLS Label Distribution Protocol Entities which
exist on this Label Switch Router (LSR)."
::= { mplsLdpEntityObjects 2 }
mplsLdpEntityEntry OBJECT-TYPE
SYNTAX MplsLdpEntityEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents an LDP entity.
An entry can be created by a network administrator
or by an SNMP agent as instructed by LDP."
INDEX { mplsLdpEntityLdpId, mplsLdpEntityIndex }
::= { mplsLdpEntityTable 1 }
MplsLdpEntityEntry ::= SEQUENCE {
mplsLdpEntityLdpId MplsLdpIdentifier,
mplsLdpEntityIndex Unsigned32,
mplsLdpEntityProtocolVersion Integer32,
mplsLdpEntityAdminStatus INTEGER,
mplsLdpEntityOperStatus INTEGER,
mplsLdpEntityTcpDscPort Unsigned32,
mplsLdpEntityUdpDscPort Unsigned32,
mplsLdpEntityMaxPduLength Unsigned32,
mplsLdpEntityKeepAliveHoldTimer Integer32,
mplsLdpEntityHelloHoldTimer Integer32,
mplsLdpEntityInitSesThreshold Integer32,
mplsLdpEntityLabelDistMethod INTEGER,
mplsLdpEntityLabelRetentionMode INTEGER,
mplsLdpEntityPVLMisTrapEnable INTEGER,
mplsLdpEntityPVL Integer32,
mplsLdpEntityHopCountLimit Integer32,
mplsLdpEntityTargPeer TruthValue,
mplsLdpEntityTargPeerAddrType AddressFamilyNumbers,
mplsLdpEntityTargPeerAddr MplsLdpGenAddr,
mplsLdpEntityOptionalParameters MplsLdpLabelTypes,
mplsLdpEntityDiscontinuityTime TimeStamp,
mplsLdpEntityStorType StorageType,
mplsLdpEntityRowStatus RowStatus
}
mplsLdpEntityLdpId OBJECT-TYPE
SYNTAX MplsLdpIdentifier
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MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The LDP identifier."
REFERENCE
"LDP Specification, Section on LDP Identifiers."
::= { mplsLdpEntityEntry 1 }
mplsLdpEntityIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This index is used as a secondary index to uniquely
identify this row. Before creating a row in this table,
the 'mplsLdpEntityIndexNext' object should be retrieved.
That value should be used for the value of this index
when creating a row in this table. (NOTE: if a value
of zero (0) is retrieved, that indicates that no rows
can be created in this table at this time.
A secondary index (this object) is meaningful to some
but not all, LDP implementations. For example
in an LDP implementation which uses PPP would
use this index to differentiate PPP sub-links."
::= { mplsLdpEntityEntry 2 }
mplsLdpEntityProtocolVersion OBJECT-TYPE
SYNTAX Integer32(1..65535)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The version number of the LDP protocol which will be
used in the session initialization message.
Section 3.5.3 in the LDP Specification specifies
that the version of the LDP protocol is negotiated during
session establishment. The value of this object
represents the value that is sent in the initialization
message."
REFERENCE
"See RFC 3036, LDP Specification, Section 3.5.3 Initialization
Message."
DEFVAL { 1 }
::= { mplsLdpEntityEntry 3 }
mplsLdpEntityAdminStatus OBJECT-TYPE
SYNTAX INTEGER {
enable(1),
disable(2)
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}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The administrative status of this LDP Entity.
If this object is changed from 'enable' to 'disable'
and this entity has already attempted to establish
contact with a Peer (which implies that the
'mplsLdpEntityRowStatus' object has been set to
'active'), then all contact with that
Peer is lost and all information from that Peer
needs to be removed from the MIB.
At this point the user is able to change values
which are related to this entity.
When the admin status is set back to 'up', then
this Entity will attempt to establish new sessions
with the Peer."
DEFVAL { enable }
::= { mplsLdpEntityEntry 4 }
mplsLdpEntityOperStatus OBJECT-TYPE
SYNTAX INTEGER {
unknown(0),
enabled(1),
disabled(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The operational status of this LDP Entity."
::= { mplsLdpEntityEntry 5 }
mplsLdpEntityTcpDscPort OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The TCP Discovery Port for
LDP. The default value is the well-known
value of this port."
DEFVAL { 646 }
::= { mplsLdpEntityEntry 6 }
mplsLdpEntityUdpDscPort OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
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DESCRIPTION
"The UDP Discovery Port for
LDP. The default value is the
well-known value for this port."
DEFVAL { 646 }
::= { mplsLdpEntityEntry 7 }
mplsLdpEntityMaxPduLength OBJECT-TYPE
SYNTAX Unsigned32 (0..65535)
UNITS "octets"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum PDU Length that is sent in
the Common Session Parameters of an Initialization
Message. A value of 255 or less specifies the
default maximum length of 4096 octets."
REFERENCE
"See Section on the 'Initialization Message' in the
LDP Specification."
DEFVAL { 4096 }
::= { mplsLdpEntityEntry 8 }
mplsLdpEntityKeepAliveHoldTimer OBJECT-TYPE
SYNTAX Integer32 (1..65535)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The two octet value which is the proposed keep alive hold
timer for this LDP Entity."
DEFVAL { 40 }
::= { mplsLdpEntityEntry 9 }
mplsLdpEntityHelloHoldTimer OBJECT-TYPE
SYNTAX Integer32 (0..65535)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The two octet value which is the proposed Hello hold
timer for this LDP Entity. A value of 0 means use the
default, which is 15 seconds for Link Hellos and 45
seconds for Targeted Hellos. A value of 65535 means
infinite."
DEFVAL { 0 }
::= { mplsLdpEntityEntry 10 }
mplsLdpEntityInitSesThreshold OBJECT-TYPE
SYNTAX Integer32
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MAX-ACCESS read-create
STATUS current
DESCRIPTION
"When attempting to establish a session with a
given Peer, the given LDP Entity should
send out the SNMP notification,
'mplsLdpInitSesThresholdExceeded', when
the number of Session Initialization messages sent
exceeds this threshold. The notification is
used to notify an operator when this Entity and
its Peer are possibily engaged in an endless
sequence of messages as each NAKs the other's
Initialization messages with Error Notification
messages. Setting this threshold which triggers
the notification is one way to
notify the operator.
A value of 0 (zero) for this object
indicates that the threshold is infinity, and
the SNMP notification will never be sent
when the value of this object is 0 (zero)."
REFERENCE
"RFC 3036, Section 2.5.3 Session Initialization."
DEFVAL { 8 }
::= { mplsLdpEntityEntry 11 }
mplsLdpEntityLabelDistMethod OBJECT-TYPE
SYNTAX INTEGER {
downstreamOnDemand(1),
downstreamUnsolicited(2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"For any given LDP session, the method of
label distribution must be specified."
::= { mplsLdpEntityEntry 12 }
mplsLdpEntityLabelRetentionMode OBJECT-TYPE
SYNTAX INTEGER {
conservative(1),
liberal(2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The LDP Entity can be configured to use either
conservative or liberal label retention mode.
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If the value of this object is conservative(1)
then advertized label mappings are retained
only if they will be used to forward packets,
i.e. if label came from a valid next hop.
If the value of this object is liberal(2)
then all advertized label mappings are retained
whether they are from a valid next hop or not."
::= { mplsLdpEntityEntry 13 }
mplsLdpEntityPVLMisTrapEnable OBJECT-TYPE
SYNTAX INTEGER {
enabled(1),
disabled(2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Indicates whether the 'mplsLdpPVLMismatch'
trap should be generated.
If the value of this object is 'enabled(1)'
then the trap will generated. If the value
of this object is 'disabled(2)' then the
trap will not be generated. The DEFVAL
is set to 'enabled(1)'."
DEFVAL { enabled }
::= { mplsLdpEntityEntry 14 }
mplsLdpEntityPVL OBJECT-TYPE
SYNTAX Integer32 (0..255)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If the value of this object is 0 (zero) then
Loop Dection for Path Vectors is disabled.
Otherwise, if this object has a value greater than
zero, then Loop Dection for Path Vectors is enabled,
and the Path Vector Limit is this value.
Also, the value of the object,
'mplsLdpLsrLoopDetectionCapable', must be set to
either 'pathVector(4)' or 'hopCountAndPathVector(5)',
if this object has a value greater than 0 (zero)."
::= { mplsLdpEntityEntry 15 }
mplsLdpEntityHopCountLimit OBJECT-TYPE
SYNTAX Integer32 (0..255)
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MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If the value of this object is 0 (zero),
then Loop Detection using Hop Counters is
disabled.
If the value of this object is greater than
0 (zero) then Loop Detection using Hop
Counters is enabled, and this object
specifies this Entity's maximum allowable
value for the Hop Count.
Also, the value of the object
mplsLdpLsrLoopDetectionCapable must be set
to either 'hopCount(3)' or
'hopCountAndPathVector(5)' if this object
has a value greater than 0 (zero)."
::= { mplsLdpEntityEntry 16 }
mplsLdpEntityTargPeer OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If this LDP entity uses targeted peer then set
this to true."
DEFVAL { false }
::= { mplsLdpEntityEntry 17 }
mplsLdpEntityTargPeerAddrType OBJECT-TYPE
SYNTAX AddressFamilyNumbers
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The type of the internetwork layer address used for
the Extended Discovery. This object indicates how
the value of mplsLdpEntityTargPeerAddr is to
be interpreted."
::= { mplsLdpEntityEntry 18 }
mplsLdpEntityTargPeerAddr OBJECT-TYPE
SYNTAX MplsLdpGenAddr
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The value of the internetwork layer address used for
the Extended Discovery."
::= { mplsLdpEntityEntry 19 }
mplsLdpEntityOptionalParameters OBJECT-TYPE
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SYNTAX MplsLdpLabelTypes
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the optional parameters for the LDP
Initialization Message. If the value is generic(1)
then no optional parameters will be sent in
the LDP Initialization message associated with
this Entity.
If the value is atmParameters(2) then
a row must be created in the mplsLdpEntityAtmParms
Table, which corresponds to this entry.
If the value is frameRelayParameters(3) then
a row must be created in the mplsLdpEntityFrameRelayParms
Table, which corresponds to this entry."
::= { mplsLdpEntityEntry 20 }
mplsLdpEntityDiscontinuityTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion
at which any one or more of this entity's counters
suffered a discontinuity. The relevant counters are the
specific instances associated with this entity of
any Counter32, or Counter64 object contained
in the 'mplsLdpEntityStatsTable'. If no such
discontinuities have occurred since the last
re-initialization of the local management
subsytem, then this object contains a zero
value."
::= { mplsLdpEntityEntry 21 }
mplsLdpEntityStorType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this entry."
::= { mplsLdpEntityEntry 22 }
mplsLdpEntityRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
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"An object that allows entries in this table to
be created and deleted using the
RowStatus convention.
Once the 'mplsLdpEntityAdminStatus' object has
the value of 'up' and this object has the value
of 'active' then the Entity will atttempt to
contact an LDP Peer. If the value of this object
is changed to 'notInService', then the Entity looses
contact with the LDP Peer and all information related
to that Peer must be removed from the MIB. This has
the same effect as changing 'mplsLdpEntityAdminStatus'
from 'enable' to 'disable'.
When this object is set to 'active' and the value of
the 'mplsLdpEntityAdminStatus' is 'enable' then
this Entity will attempt to contact the Peer and
establish new sessions."
::= { mplsLdpEntityEntry 23 }
--
-- Ldp Entity Objects for Generic Labels
--
mplsLdpEntityGenericObjects OBJECT IDENTIFIER ::=
{ mplsLdpEntityObjects 3 }
--
-- The MPLS LDP Entity Configurable Generic Label Range Table
--
mplsLdpEntityConfGenLRTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpEntityConfGenLREntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The MPLS LDP Entity Configurable Generic Label Range Table.
The purpose of this table is to provide a mechanism
for specifying a contiguous range of generic labels,
or a 'label range' for LDP Entities.
LDP Entities which use Generic Labels must have at least one
entry in this table."
::= { mplsLdpEntityGenericObjects 1 }
mplsLdpEntityConfGenLREntry OBJECT-TYPE
SYNTAX MplsLdpEntityConfGenLREntry
MAX-ACCESS not-accessible
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STATUS current
DESCRIPTION
"A row in the LDP Entity Configurable Generic Label
Range Table. One entry in this table contains
information on a single range of labels
represented by the configured Upper and Lower
Bounds pairs. NOTE: there is NO corresponding
LDP message which relates to the information
in this table, however, this table does provide
a way for a user to 'reserve' a generic label
range.
NOTE: The ranges for a specific LDP Entity
are UNIQUE and non-overlapping.
A row will not be created unless a unique and
non-overlapping range is specified."
INDEX { mplsLdpEntityLdpId,
mplsLdpEntityIndex,
mplsLdpEntityConfGenLRMin,
mplsLdpEntityConfGenLRMax
}
::= { mplsLdpEntityConfGenLRTable 1 }
MplsLdpEntityConfGenLREntry ::= SEQUENCE {
mplsLdpEntityConfGenLRMin Unsigned32,
mplsLdpEntityConfGenLRMax Unsigned32,
mplsLdpEntityConfGenIfIndxOrZero InterfaceIndexOrZero,
mplsLdpEntityConfGenLRStorType StorageType,
mplsLdpEntityConfGenLRRowStatus RowStatus
}
mplsLdpEntityConfGenLRMin OBJECT-TYPE
SYNTAX Unsigned32(0..1048575)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The minimum label configured for this range."
::= { mplsLdpEntityConfGenLREntry 1 }
mplsLdpEntityConfGenLRMax OBJECT-TYPE
SYNTAX Unsigned32(0..1048575)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The maximum label configured for this range."
::= { mplsLdpEntityConfGenLREntry 2 }
mplsLdpEntityConfGenIfIndxOrZero OBJECT-TYPE
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SYNTAX InterfaceIndexOrZero
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This value represents either the InterfaceIndex of
the 'ifLayer' where these Generic Label would be created, or
0 (zero). The value of zero means that the InterfaceIndex
is not known. For example, if the InterfaceIndex is
created subsequent to the Generic Label's creation, then
it would not be known. However, if the InterfaceIndex
is known, then it must be represented by this value.
If an InterfaceIndex becomes known, then the
network management entity (e.g. SNMP agent) responsible
for this object MUST change the value from 0 (zero) to the
value of the InterfaceIndex."
::= { mplsLdpEntityConfGenLREntry 3 }
mplsLdpEntityConfGenLRStorType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this entry."
::= { mplsLdpEntityConfGenLREntry 4 }
mplsLdpEntityConfGenLRRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An object that allows entries in this
table to be created and deleted using
the RowStatus convention.
There must exist at least one entry in this
table for every LDP Entity that has a
generic label configured.
NOTE: This RowStatus object should
have the same value of the 'mplsLdpEntityRowStatus'
related to this entry."
::= { mplsLdpEntityConfGenLREntry 5 }
--
-- Ldp Entity Objects for ATM
--
mplsLdpEntityAtmObjects OBJECT IDENTIFIER ::=
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{ mplsLdpEntityObjects 4 }
mplsLdpEntityAtmParmsTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpEntityAtmParmsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains information about the
ATM specific information which could be used
in the 'Optional Parameters' and other ATM specific
information."
::= { mplsLdpEntityAtmObjects 1 }
mplsLdpEntityAtmParmsEntry OBJECT-TYPE
SYNTAX MplsLdpEntityAtmParmsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents the ATM parameters
and ATM information for this LDP entity."
INDEX { mplsLdpEntityLdpId,
mplsLdpEntityIndex
}
::= { mplsLdpEntityAtmParmsTable 1 }
MplsLdpEntityAtmParmsEntry ::= SEQUENCE {
mplsLdpEntityAtmIfIndxOrZero InterfaceIndexOrZero,
mplsLdpEntityAtmMergeCap INTEGER,
mplsLdpEntityAtmLRComponents Unsigned32,
mplsLdpEntityAtmVcDirectionality INTEGER,
mplsLdpEntityAtmLsrConnectivity INTEGER,
mplsLdpEntityDefaultControlVpi AtmVpIdentifier,
mplsLdpEntityDefaultControlVci MplsAtmVcIdentifier,
mplsLdpEntityUnlabTrafVpi AtmVpIdentifier,
mplsLdpEntityUnlabTrafVci MplsAtmVcIdentifier,
mplsLdpEntityAtmStorType StorageType,
mplsLdpEntityAtmRowStatus RowStatus
}
mplsLdpEntityAtmIfIndxOrZero OBJECT-TYPE
SYNTAX InterfaceIndexOrZero
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This value represents either the InterfaceIndex of
the 'ifLayer' where the ATM Labels 'owned' by this
entry were created, or 0 (zero). The value of zero
means that the InterfaceIndex is not known. For example,
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if the InterfaceIndex is created subsequent to the
ATM Label's creation, then it would not be known.
However, if the InterfaceIndex is known, then it must
be represented by this value.
If an InterfaceIndex becomes known, then the
network management entity (e.g. SNMP agent) responsible
for this object MUST change the value from 0 (zero) to the
value of the InterfaceIndex. If an ATM Label is
being used in forwarding data, then the value of this
object MUST be the InterfaceIndex."
::= { mplsLdpEntityAtmParmsEntry 1 }
mplsLdpEntityAtmMergeCap OBJECT-TYPE
SYNTAX INTEGER {
notSupported(0),
vcMerge(2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Denotes the Merge Capability of this Entity."
::= { mplsLdpEntityAtmParmsEntry 2 }
mplsLdpEntityAtmLRComponents OBJECT-TYPE
SYNTAX Unsigned32 (1..65535)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Number of Label Range Components in the Initialization
message. This also represents the number of entries
in the mplsLdpEntityConfAtmLRTable which correspond
to this entry."
::= { mplsLdpEntityAtmParmsEntry 3 }
mplsLdpEntityAtmVcDirectionality OBJECT-TYPE
SYNTAX INTEGER {
bidirectional(0),
unidirectional(1)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If the value of this object is 'bidirectional(0)',
a given VCI, within a given VPI, is used as a
label for both directions independently.
If the value of this object is 'unidirectional(1)',
a given VCI within a VPI designates one direction."
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::= { mplsLdpEntityAtmParmsEntry 4 }
mplsLdpEntityAtmLsrConnectivity OBJECT-TYPE
SYNTAX INTEGER {
direct(1),
indirect(2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The peer LSR may be connected indirectly by means of an
ATM VP so that the VPI values may be different on either
endpoint so the label MUST be encoded entirely within the
VCI field."
DEFVAL { direct }
::= { mplsLdpEntityAtmParmsEntry 5 }
mplsLdpEntityDefaultControlVpi OBJECT-TYPE
SYNTAX AtmVpIdentifier
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The default VPI value for the non-MPLS connection. The
default value of this is 0 (zero) but other values may
be configured. This object allows a different value
to be configured."
DEFVAL
{ 0 }
::= { mplsLdpEntityAtmParmsEntry 6 }
mplsLdpEntityDefaultControlVci OBJECT-TYPE
SYNTAX MplsAtmVcIdentifier
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Default VCI value for a non-MPLS connection. The
default value of this is 32 but other values may be
configured. This object allows a different value to
be configured."
DEFVAL
{ 32 }
::= { mplsLdpEntityAtmParmsEntry 7 }
mplsLdpEntityUnlabTrafVpi OBJECT-TYPE
SYNTAX AtmVpIdentifier
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"VPI value of the VCC supporting unlabelled traffic. This
non-MPLS connection is used to carry unlabelled (IP)
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packets. The default value is the same as the default
value of the 'mplsLdpEntityDefaultControlVpi', however
another value may be configured."
DEFVAL { 0 }
::= { mplsLdpEntityAtmParmsEntry 8 }
mplsLdpEntityUnlabTrafVci OBJECT-TYPE
SYNTAX MplsAtmVcIdentifier
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"VCI value of the VCC supporting unlabelled traffic.
This non-MPLS connection is used to carry unlabelled (IP)
packets. The default value is the same as the default
value of the 'mplsLdpEntityDefaultControlVci', however
another value may be configured."
DEFVAL { 32 }
::= { mplsLdpEntityAtmParmsEntry 9 }
mplsLdpEntityAtmStorType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this entry."
::= { mplsLdpEntityAtmParmsEntry 10 }
mplsLdpEntityAtmRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An object that allows entries in this table to
be created and deleted using the
RowStatus convention.
NOTE: This RowStatus object should
have the same value of the 'mplsLdpEntityRowStatus'
related to this entry."
::= { mplsLdpEntityAtmParmsEntry 11 }
--
-- The MPLS LDP Entity Configurable ATM Label Range Table
--
mplsLdpEntityConfAtmLRTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpEntityConfAtmLREntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
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"The MPLS LDP Entity Configurable ATM Label Range Table.
The purpose of this table is to provide a mechanism
for specifying a contiguous range of vpi's
with a contiguous range of vci's, or a 'label range'
for LDP Entities.
LDP Entities which use ATM must have at least one
entry in this table."
::= { mplsLdpEntityAtmObjects 2 }
mplsLdpEntityConfAtmLREntry OBJECT-TYPE
SYNTAX MplsLdpEntityConfAtmLREntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row in the LDP Entity Configurable ATM Label
Range Table. One entry in this table contains
information on a single range of labels
represented by the configured Upper and Lower
Bounds VPI/VCI pairs. These are the same
data used in the Initialization Message.
NOTE: The ranges for a specific LDP Entity
are UNIQUE and non-overlapping. For example,
for a specific LDP Entity index, there could
be one entry having ConfLowerBound vpi/vci == 0/32, and
ConfUpperBound vpi/vci == 0/100, and a second entry
for this same interface with ConfLowerBound
vpi/vci == 0/101 and ConfUpperBound vpi/vci == 0/200.
However, there could not be a third entry with
ConfLowerBound vpi/vci == 0/200 and
ConfUpperBound vpi/vci == 0/300 because this label
range overlaps with the second entry (i.e. both
entries now have 0/200).
A row will not be created unless a unique and
non-overlapping range is specified. Thus, row
creation implies a one-shot row creation of
LDP EntityID and ConfLowerBound vpi/vci and
ConfUpperBound vpi/vci. At least one label
range entry for a specific LDP Entity MUST
include the default VPI/VCI values denoted
in the LDP Entity Table."
INDEX { mplsLdpEntityLdpId,
mplsLdpEntityIndex,
mplsLdpEntityConfAtmLRMinVpi,
mplsLdpEntityConfAtmLRMinVci
}
::= { mplsLdpEntityConfAtmLRTable 1 }
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MplsLdpEntityConfAtmLREntry ::= SEQUENCE {
mplsLdpEntityConfAtmLRMinVpi AtmVpIdentifier,
mplsLdpEntityConfAtmLRMinVci MplsAtmVcIdentifier,
mplsLdpEntityConfAtmLRMaxVpi AtmVpIdentifier,
mplsLdpEntityConfAtmLRMaxVci MplsAtmVcIdentifier,
mplsLdpEntityConfAtmLRStorType StorageType,
mplsLdpEntityConfAtmLRRowStatus RowStatus
}
mplsLdpEntityConfAtmLRMinVpi OBJECT-TYPE
SYNTAX AtmVpIdentifier
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The minimum VPI number configured for this range."
::= { mplsLdpEntityConfAtmLREntry 1 }
mplsLdpEntityConfAtmLRMinVci OBJECT-TYPE
SYNTAX MplsAtmVcIdentifier
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The minimum VCI number configured for this range."
::= { mplsLdpEntityConfAtmLREntry 2 }
mplsLdpEntityConfAtmLRMaxVpi OBJECT-TYPE
SYNTAX AtmVpIdentifier
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum VPI number configured for this range."
::= { mplsLdpEntityConfAtmLREntry 3 }
mplsLdpEntityConfAtmLRMaxVci OBJECT-TYPE
SYNTAX MplsAtmVcIdentifier
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum VCI number configured for this range."
::= { mplsLdpEntityConfAtmLREntry 4 }
mplsLdpEntityConfAtmLRStorType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this entry."
::= { mplsLdpEntityConfAtmLREntry 5 }
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mplsLdpEntityConfAtmLRRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An object that allows entries in this
table to be created and deleted using
the RowStatus convention.
There must exist at least one entry in this
table for every LDP Entity that has
'mplsLdpEntityOptionalParameters' object with
a value of 'atmSessionParameters'.
NOTE: This RowStatus object should
have the same value of the 'mplsLdpEntityRowStatus'
related to this entry."
::= { mplsLdpEntityConfAtmLREntry 6 }
--
-- Ldp Entity Objects for Frame Relay
--
mplsLdpEntityFrameRelayObjects OBJECT IDENTIFIER ::=
{ mplsLdpEntityObjects 5 }
mplsLdpEntityFrParmsTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpEntityFrParmsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains information about the
Optional Parameters to specify what this Entity is
going to specify for Frame Relay specific
LDP Intialization Messages."
::= { mplsLdpEntityFrameRelayObjects 1 }
mplsLdpEntityFrParmsEntry OBJECT-TYPE
SYNTAX MplsLdpEntityFrParmsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents the Frame Relay
optional parameters associated with the LDP entity."
INDEX { mplsLdpEntityLdpId,
mplsLdpEntityIndex
}
::= { mplsLdpEntityFrParmsTable 1 }
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MplsLdpEntityFrParmsEntry ::= SEQUENCE {
mplsLdpEntityFrIfIndxOrZero InterfaceIndexOrZero,
mplsLdpEntityFrMergeCap INTEGER,
mplsLdpEntityFrLRComponents Unsigned32,
mplsLdpEntityFrLen INTEGER,
mplsLdpEntityFrVcDirectionality INTEGER,
mplsLdpEntityFrParmsStorType StorageType,
mplsLdpEntityFrParmsRowStatus RowStatus
}
mplsLdpEntityFrIfIndxOrZero OBJECT-TYPE
SYNTAX InterfaceIndexOrZero
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This value represents either the InterfaceIndex of
the 'ifLayer' where the Frame Relay Labels 'owned' by this
entry were created, or 0 (zero). The value of zero
means that the InterfaceIndex is not known. For example,
if the InterfaceIndex is created subsequent to the
Frame Relay Label's creation, then it would not be known.
However, if the InterfaceIndex is known, then it must
be represented by this value.
If an InterfaceIndex becomes known, then the
network management entity (e.g. SNMP agent) responsible
for this object MUST change the value from 0 (zero) to the
value of the InterfaceIndex. If an Frame Relay Label is
being used in forwarding data, then the value of this
object MUST be the InterfaceIndex."
::= { mplsLdpEntityFrParmsEntry 1 }
mplsLdpEntityFrMergeCap OBJECT-TYPE
SYNTAX INTEGER {
notSupported(0),
supported(1)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This represents whether or not Frame Relay merge
capability is supported."
::= { mplsLdpEntityFrParmsEntry 2 }
mplsLdpEntityFrLRComponents OBJECT-TYPE
SYNTAX Unsigned32 (1..65535)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Number of LabelRange Components in the Initialization
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message. This also represents the number of entries
in the mplsLdpEntityConfFrLRTable which correspond
to this entry."
::= { mplsLdpEntityFrParmsEntry 3 }
mplsLdpEntityFrLen OBJECT-TYPE
SYNTAX INTEGER {
tenDlciBits(0),
twentyThreeDlciBits(2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object specifies the DLCI bits."
::= { mplsLdpEntityFrParmsEntry 4 }
mplsLdpEntityFrVcDirectionality OBJECT-TYPE
SYNTAX INTEGER {
bidirectional(0),
unidirection(1)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If the value of this object is 'bidirectional(0)', then
the LSR supports the use of a given DLCI as a label for
both directions independently. If the value of
this object is 'unidirectional(1)', then the LSR
uses the given DLCI as a label in only one direction."
::= { mplsLdpEntityFrParmsEntry 5 }
mplsLdpEntityFrParmsStorType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this entry."
::= { mplsLdpEntityFrParmsEntry 6 }
mplsLdpEntityFrParmsRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An object that allows entries in this table to
be created and deleted using the
RowStatus convention.
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NOTE: This RowStatus object should
have the same value of the 'mplsLdpEntityRowStatus'
related to this entry."
::= { mplsLdpEntityFrParmsEntry 7 }
--
-- Frame Relay Label Range Components
--
mplsLdpEntityConfFrLRTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpEntityConfFrLREntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains information about the
Optional Parameters to specify what this Entity is
going to specify for Frame Relay specific
LDP Intialization Messages."
::= { mplsLdpEntityFrameRelayObjects 2 }
mplsLdpEntityConfFrLREntry OBJECT-TYPE
SYNTAX MplsLdpEntityConfFrLREntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents the Frame Relay
optional parameters associated with the LDP entity."
INDEX { mplsLdpEntityLdpId,
mplsLdpEntityIndex,
mplsLdpConfFrMinDlci
}
::= { mplsLdpEntityConfFrLRTable 1 }
MplsLdpEntityConfFrLREntry ::= SEQUENCE {
mplsLdpConfFrMinDlci Integer32,
mplsLdpConfFrMaxDlci Integer32,
mplsLdpConfFrStorType StorageType,
mplsLdpConfFrRowStatus RowStatus
}
mplsLdpConfFrMinDlci OBJECT-TYPE
SYNTAX Integer32(0..4194303)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The lower bound which is supported. This value should
be the same as that in the Frame Relay Label Range
Component's Minimum DLCI field."
::= { mplsLdpEntityConfFrLREntry 1 }
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mplsLdpConfFrMaxDlci OBJECT-TYPE
SYNTAX Integer32 (0..4194303)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The upper bound which is supported. This value should
be the same as that in the Frame Relay Label Range
Component's Maximum DLCI field."
::= { mplsLdpEntityConfFrLREntry 2 }
mplsLdpConfFrStorType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this entry."
::= { mplsLdpEntityConfFrLREntry 3 }
mplsLdpConfFrRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An object that allows entries in this table to
be created and deleted using the
RowStatus convention.
If the value of the object
'mplsLdpEntityOptionalParameters' contains the
value of 'frameRelaySessionParameters(3)' then
there must be at least one corresponding entry
in this table.
NOTE: This RowStatus object should
have the same value of the 'mplsLdpEntityRowStatus'
related to this entry."
::= { mplsLdpEntityConfFrLREntry 4 }
--
-- The MPLS LDP Entity Statistics Table
--
mplsLdpEntityStatsTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpEntityStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
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"This table is a read-only table which augments
the mplsLdpEntityTable. The purpose of this
table is to keep statistical information about
the LDP Entities on the LSR."
::= { mplsLdpEntityObjects 6 }
mplsLdpEntityStatsEntry OBJECT-TYPE
SYNTAX MplsLdpEntityStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A row in this table contains statistical information
about an LDP Entity. Some counters contained in a
row are for fatal errors received during a former
LDP Session associated with this entry. For example,
an Ldp Pdu received on a TCP connection during an
LDP Session contains a fatal error. That
error is counted here, because the
session is terminated.
If the error is NOT fatal (i.e. and the Session
remains), then the error is counted in the
mplsLdpSesStatsEntry."
AUGMENTS { mplsLdpEntityEntry }
::= { mplsLdpEntityStatsTable 1 }
MplsLdpEntityStatsEntry ::= SEQUENCE {
mplsLdpAttemptedSessions Counter32,
mplsLdpSesRejectedNoHelloErrors Counter32,
mplsLdpSesRejectedAdErrors Counter32,
mplsLdpSesRejectedMaxPduErrors Counter32,
mplsLdpSesRejectedLRErrors Counter32,
mplsLdpBadLdpIdentifierErrors Counter32,
mplsLdpBadPduLengthErrors Counter32,
mplsLdpBadMessageLengthErrors Counter32,
mplsLdpBadTlvLengthErrors Counter32,
mplsLdpMalformedTlvValueErrors Counter32,
mplsLdpKeepAliveTimerExpErrors Counter32,
mplsLdpShutdownNotifReceived Counter32,
mplsLdpShutdownNotifSent Counter32
}
mplsLdpAttemptedSessions OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the total attempted sessions for
this LDP Entity."
::= { mplsLdpEntityStatsEntry 1 }
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mplsLdpSesRejectedNoHelloErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the Session Rejected/No Hello Error
Notification Messages sent or received by
this LDP Entity."
::= { mplsLdpEntityStatsEntry 2 }
mplsLdpSesRejectedAdErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the Session Rejected/Parameters
Advertisement Mode Error Notification Messages sent
or received by this LDP Entity."
::= { mplsLdpEntityStatsEntry 3 }
mplsLdpSesRejectedMaxPduErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the Session Rejected/Parameters
Max Pdu Length Error Notification Messages sent
or received by this LDP Entity."
::= { mplsLdpEntityStatsEntry 4 }
mplsLdpSesRejectedLRErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A count of the Session Rejected/Parameters
Label Range Notification Messages sent
or received by this LDP Entity."
::= { mplsLdpEntityStatsEntry 5 }
mplsLdpBadLdpIdentifierErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of Bad LDP Identifier
Fatal Errors detected by the session(s)
(past and present) associated with this LDP Entity."
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REFERENCE
"LDP Specification, Section 3.5.1.2."
::= { mplsLdpEntityStatsEntry 6 }
mplsLdpBadPduLengthErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of Bad Pdu Length
Fatal Errors detected by the session(s)
(past and present) associated with this LDP Entity."
REFERENCE
"LDP Specification, Section 3.5.1.2."
::= { mplsLdpEntityStatsEntry 7 }
mplsLdpBadMessageLengthErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of Bad Message
Length Fatal Errors detected by the session(s)
(past and present) associated with this LDP Entity."
REFERENCE
"LDP Specification, Section 3.5.1.2."
::= { mplsLdpEntityStatsEntry 8 }
mplsLdpBadTlvLengthErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of Bad TLV
Length Fatal Errors detected by the session(s)
(past and present) associated with this LDP Entity."
REFERENCE
"LDP Specification, Section 3.5.1.2."
::= { mplsLdpEntityStatsEntry 9 }
mplsLdpMalformedTlvValueErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of Malformed TLV
Value Fatal Errors detected by the session(s)
(past and present) associated with this
LDP Entity."
REFERENCE
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"LDP Specification, Section 3.5.1.2."
::= { mplsLdpEntityStatsEntry 10 }
mplsLdpKeepAliveTimerExpErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of Session Keep Alive
Timer Expired Errors detected by the session(s)
(past and present) associated with this LDP Entity."
REFERENCE
"LDP Specification, Section 3.5.1.2."
::= { mplsLdpEntityStatsEntry 11 }
mplsLdpShutdownNotifReceived OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of Shutdown Notfications
received related to session(s) (past and present)
associated with this LDP Entity."
::= { mplsLdpEntityStatsEntry 12 }
mplsLdpShutdownNotifSent OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of Shutdown Notfications
sent related to session(s) (past and present) associated
with this LDP Entity."
::= { mplsLdpEntityStatsEntry 13 }
--
-- The MPLS LDP Peer Table
--
mplsLdpSessionObjects OBJECT IDENTIFIER ::=
{ mplsLdpObjects 3 }
mplsLdpPeerTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpPeerEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Information about LDP peers known by Entities in
the mplsLdpEntityTable. The information in this table
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is based on information from the Entity-Peer interaction
during session initialization but is not appropriate
for the mplsLdpSessionTable, because objects in this
table may or may not be used in session establishment."
::= { mplsLdpSessionObjects 1 }
mplsLdpPeerEntry OBJECT-TYPE
SYNTAX MplsLdpPeerEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Information about a single Peer which is related
to a Session. NOTE: this table is augmented by
the mplsLdpSessionTable."
INDEX { mplsLdpEntityLdpId,
mplsLdpEntityIndex,
mplsLdpPeerLdpId }
::= { mplsLdpPeerTable 1 }
MplsLdpPeerEntry ::= SEQUENCE {
mplsLdpPeerLdpId MplsLdpIdentifier,
mplsLdpPeerLabelDistMethod INTEGER,
mplsLdpPeerLoopDetectionForPV INTEGER,
mplsLdpPeerPVL Integer32
}
mplsLdpPeerLdpId OBJECT-TYPE
SYNTAX MplsLdpIdentifier
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The LDP identifier of this LDP Peer."
::= { mplsLdpPeerEntry 1 }
mplsLdpPeerLabelDistMethod OBJECT-TYPE
SYNTAX INTEGER {
downstreamOnDemand(1),
downstreamUnsolicited(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"For any given LDP session, the method of
label distribution must be specified."
::= { mplsLdpPeerEntry 2 }
mplsLdpPeerLoopDetectionForPV OBJECT-TYPE
SYNTAX INTEGER {
disabled(0),
enabled(1)
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}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An indication of whether loop detection based
on path vectors is disabled or enabled for this Peer.
If this object has a value of disabled(0),
then loop detection is disabled. Otherwise, if this
object has a value of enabled(1), then loop detection
based on path vectors is enabled."
::= { mplsLdpPeerEntry 3 }
mplsLdpPeerPVL OBJECT-TYPE
SYNTAX Integer32 (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"If the value of 'mplsLdpPeerLoopDetectionForPV' for
this entry is 'enabled(1)', the this object represents
that Path Vector Limit for this peer.
If the value of 'mplsLdpPeerLoopDetectionForPV' for
this entry is 'disabled(0)', then this value should
be 0 (zero)."
::= { mplsLdpPeerEntry 4 }
--
-- The MPLS LDP Hello Adjacency Table
--
mplsLdpHelloAdjacencyObjects OBJECT IDENTIFIER ::=
{ mplsLdpSessionObjects 2 }
mplsLdpHelloAdjacencyTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpHelloAdjacencyEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of Hello Adjacencies for Sessions."
::= { mplsLdpHelloAdjacencyObjects 1 }
mplsLdpHelloAdjacencyEntry OBJECT-TYPE
SYNTAX MplsLdpHelloAdjacencyEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
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"Each row represents a single LDP Hello Adjacency.
An LDP Session can have one or more Hello adjacencies."
INDEX { mplsLdpEntityLdpId,
mplsLdpEntityIndex,
mplsLdpPeerLdpId,
mplsLdpHelloAdjIndex }
::= { mplsLdpHelloAdjacencyTable 1 }
MplsLdpHelloAdjacencyEntry ::= SEQUENCE {
mplsLdpHelloAdjIndex Unsigned32,
mplsLdpHelloAdjHoldTimeRem TimeInterval,
mplsLdpHelloAdjType INTEGER
}
mplsLdpHelloAdjIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An identifier for this specific adjacency."
::= { mplsLdpHelloAdjacencyEntry 1 }
mplsLdpHelloAdjHoldTimeRem OBJECT-TYPE
SYNTAX TimeInterval
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time remaining for this Hello Adjacency.
This interval will change when the 'next'
Hello message which corresponds to this
Hello Adjacency is received."
::= { mplsLdpHelloAdjacencyEntry 2 }
mplsLdpHelloAdjType OBJECT-TYPE
SYNTAX INTEGER {
link(1),
targeted(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This adjacency is the result of a 'link'
hello if the value of this object is link(1).
Otherwise, it is a result of a 'targeted'
hello, targeted(2)."
::= { mplsLdpHelloAdjacencyEntry 3 }
--
-- The MPLS LDP Sessions Table
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--
mplsLdpSesUpDownTrapEnable OBJECT-TYPE
SYNTAX INTEGER {
enabled(1),
disabled(2)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Indicates whether the traps, 'mplsLdpSesUp' and
'mplsLdpSesDown' will be generated or not.
If the value of this object is 'enabled(1)'
then the traps will generated. If the value
of this object is 'disabled(2)' then the
traps will not be generated. The DEFVAL
is set to 'disabled(2)'."
DEFVAL { disabled }
::= { mplsLdpSessionObjects 3 }
mplsLdpSessionTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpSessionEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of Sessions between the LDP Entities and
LDP Peers. Each row represents a single session."
::= { mplsLdpSessionObjects 4 }
mplsLdpSessionEntry OBJECT-TYPE
SYNTAX MplsLdpSessionEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents information on a
single session between an LDP Entity and LDP Peer.
The information contained in a row is read-only.
Please note: the Path Vector Limit for the
Session is the value which is configured in
the corresponding mplsLdpEntityEntry. The
Peer's Path Vector Limit is in noted in the
mplsLdpPeerTable.
Values which may differ from those configured are
noted in the objects of this table, the
mplsLdpAtmSessionTable and the
mplsLdpFrameRelaySessionTable. A value will
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differ if it was negotiated between the
Entity and the Peer. Values may or may not
be negotiated. For example, if the values
are the same then no negotiation takes place.
If they are negotiated, then they may differ."
AUGMENTS { mplsLdpPeerEntry }
::= { mplsLdpSessionTable 1 }
MplsLdpSessionEntry ::= SEQUENCE {
mplsLdpSesState INTEGER,
mplsLdpSesProtocolVersion Integer32,
mplsLdpSesKeepAliveHoldTimeRem TimeInterval,
mplsLdpSesMaxPduLen Unsigned32,
mplsLdpSesDiscontinuityTime TimeStamp
}
mplsLdpSesState OBJECT-TYPE
SYNTAX INTEGER {
nonexistent(1),
initialized(2),
openrec(3),
opensent(4),
operational(5)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current state of the session, all of the
states 1 - 5 are based on the state machine for
session negotiation behavior."
::= { mplsLdpSessionEntry 1 }
mplsLdpSesProtocolVersion OBJECT-TYPE
SYNTAX Integer32(1..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The version of the LDP Protocol which
this session is using. This is the version of
the LDP protocol which has been negotiated during
session initialization."
REFERENCE
"RFC 3036, LDP Specification, Section 3.5.3 Initialization
Message."
::= { mplsLdpSessionEntry 2 }
mplsLdpSesKeepAliveHoldTimeRem OBJECT-TYPE
SYNTAX TimeInterval
MAX-ACCESS read-only
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STATUS current
DESCRIPTION
"The keep alive hold time remaining for this session."
::= { mplsLdpSessionEntry 3 }
mplsLdpSesMaxPduLen OBJECT-TYPE
SYNTAX Unsigned32 (1..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of maximum allowable length for LDP PDUs for
this session. This value may have been negotiated during
the Session Initialization."
::= { mplsLdpSessionEntry 4 }
mplsLdpSesDiscontinuityTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion at
which any one or more of this session's counters
suffered a discontinuity. The relevant counters are
the specific instances associated with this session
of any Counter32 or Counter64 object contained in the
mplsLdpSessionStatsTable.
The initial value of this object is the value of
sysUpTime when the entry was created in this table.
Also, an NMS can distinguish when a session
between a given Entity and Peer goes away and then is
're-established'. This value would change and
thus indicate to the NMS that this is a
different session."
::= { mplsLdpSessionEntry 5 }
--
-- MPLS LDP ATM Session Information
--
mplsLdpAtmSesTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpAtmSesEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table which relates Sessions in the
'mplsLdpSessionTable' and their label
range intersections. There could be one
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or more label range intersections between an
LDP Entity and LDP Peer using ATM as the underlying
media. Each row represents a single label range
intersection.
NOTE: this table cannot use the 'AUGMENTS'
clause because there is not necessarily a one-to-one
mapping between this table and the mplsLdpSessionTable."
::= { mplsLdpSessionObjects 5 }
mplsLdpAtmSesEntry OBJECT-TYPE
SYNTAX MplsLdpAtmSesEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents information on a
single label range intersection between an LDP Entity
and LDP Peer.
The information contained in a row is read-only."
INDEX { mplsLdpEntityLdpId,
mplsLdpEntityIndex,
mplsLdpPeerLdpId,
mplsLdpSesAtmLRLowerBoundVpi,
mplsLdpSesAtmLRLowerBoundVci
}
::= { mplsLdpAtmSesTable 1 }
MplsLdpAtmSesEntry ::= SEQUENCE {
mplsLdpSesAtmLRLowerBoundVpi AtmVpIdentifier,
mplsLdpSesAtmLRLowerBoundVci MplsAtmVcIdentifier,
mplsLdpSesAtmLRUpperBoundVpi AtmVpIdentifier,
mplsLdpSesAtmLRUpperBoundVci MplsAtmVcIdentifier
}
mplsLdpSesAtmLRLowerBoundVpi OBJECT-TYPE
SYNTAX AtmVpIdentifier
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The minimum VPI number for this range."
::= { mplsLdpAtmSesEntry 1 }
mplsLdpSesAtmLRLowerBoundVci OBJECT-TYPE
SYNTAX MplsAtmVcIdentifier
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The minimum VCI number for this range."
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::= { mplsLdpAtmSesEntry 2 }
mplsLdpSesAtmLRUpperBoundVpi OBJECT-TYPE
SYNTAX AtmVpIdentifier
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum VPI number for this range."
::= { mplsLdpAtmSesEntry 3 }
mplsLdpSesAtmLRUpperBoundVci OBJECT-TYPE
SYNTAX MplsAtmVcIdentifier
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum VCI number for this range."
::= { mplsLdpAtmSesEntry 4 }
--
-- MPLS LDP Frame Relay Session Information
--
mplsLdpFrameRelaySesTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpFrameRelaySesEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of Frame Relay label range intersections
between the LDP Entities and LDP Peers.
Each row represents a single label range intersection.
NOTE: this table cannot use the 'AUGMENTS'
clause because there is not necessarily a one-to-one
mapping between this table and the mplsLdpSessionTable."
::= { mplsLdpSessionObjects 6 }
mplsLdpFrameRelaySesEntry OBJECT-TYPE
SYNTAX MplsLdpFrameRelaySesEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents information on a
single label range intersection between an
LDP Entity and LDP Peer.
The information contained in a row is read-only."
INDEX { mplsLdpEntityLdpId,
mplsLdpEntityIndex,
mplsLdpPeerLdpId,
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mplsLdpFrSesMinDlci
}
::= { mplsLdpFrameRelaySesTable 1 }
MplsLdpFrameRelaySesEntry ::= SEQUENCE {
mplsLdpFrSesMinDlci Integer32,
mplsLdpFrSesMaxDlci Integer32,
mplsLdpFrSesLen INTEGER
}
mplsLdpFrSesMinDlci OBJECT-TYPE
SYNTAX Integer32(0..4194303)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The lower bound of DLCIs which are supported."
::= { mplsLdpFrameRelaySesEntry 1 }
mplsLdpFrSesMaxDlci OBJECT-TYPE
SYNTAX Integer32 (0..4194303)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The upper bound of DLCIs which are supported."
::= { mplsLdpFrameRelaySesEntry 2 }
mplsLdpFrSesLen OBJECT-TYPE
SYNTAX INTEGER {
tenDlciBits(0),
twentyThreeDlciBits(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object specifies the DLCI bits."
::= { mplsLdpFrameRelaySesEntry 3 }
--
-- The MPLS LDP Session Statistics Table
--
mplsLdpSesStatsTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpSesStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of statistics for Sessions between
Expires February 2002 [Page 50]
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LDP Entities and LDP Peers."
::= { mplsLdpSessionObjects 7 }
mplsLdpSesStatsEntry OBJECT-TYPE
SYNTAX MplsLdpSesStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents statistical
information on a single session between an LDP
Entity and LDP Peer."
AUGMENTS { mplsLdpPeerEntry }
::= { mplsLdpSesStatsTable 1 }
MplsLdpSesStatsEntry ::= SEQUENCE {
mplsLdpSesStatsUnkMesTypeErrors Counter32,
mplsLdpSesStatsUnkTlvErrors Counter32
}
mplsLdpSesStatsUnkMesTypeErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of Unknown Message Type
Errors detected during this session.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
mplsLdpSesDiscontinuityTime."
::= { mplsLdpSesStatsEntry 1 }
mplsLdpSesStatsUnkTlvErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the number of Unknown TLV Errors
detected during this session.
Discontinuities in the value of this counter can occur
at re-initialization of the management system, and at
other times as indicated by the value of
mplsLdpSessionDiscontinuityTime."
::= { mplsLdpSesStatsEntry 2 }
Expires February 2002 [Page 51]
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--
-- Mpls FEC Table
--
mplsFecObjects OBJECT IDENTIFIER ::=
{ mplsLdpSessionObjects 8 }
mplsFecIndexNext OBJECT-TYPE
SYNTAX Unsigned32 (0..4294967295)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains an appropriate value to
be used for mplsFecIndex when creating
entries in the mplsFecTable. The value
0 indicates that no unassigned entries are
available. To obtain the mplsFecIndex
value for a new entry, the manager issues a
management protocol retrieval operation to obtain
the current value of this object. After each
retrieval, the agent should modify the value to
the next unassigned index."
::= { mplsFecObjects 1 }
mplsFecTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsFecEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table represents the FEC
(Forwarding Equivalence Class)
Information associated with an LSP."
::= { mplsFecObjects 2 }
mplsFecEntry OBJECT-TYPE
SYNTAX MplsFecEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Each row represents a single FEC Element."
INDEX { mplsFecIndex }
::= { mplsFecTable 1 }
MplsFecEntry ::= SEQUENCE {
mplsFecIndex Unsigned32,
mplsFecType INTEGER,
mplsFecAddrLength Integer32,
mplsFecAddrFamily AddressFamilyNumbers,
mplsFecAddr MplsLdpGenAddr,
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mplsFecStorType StorageType,
mplsFecRowStatus RowStatus
}
mplsFecIndex OBJECT-TYPE
SYNTAX Unsigned32(1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The index which uniquely identifies this entry."
::= { mplsFecEntry 1 }
mplsFecType OBJECT-TYPE
SYNTAX INTEGER {
prefix(1),
hostAddress(2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The type of the FEC. If the value of this object
is 'prefix(1)' then the FEC type described by this
row is for address prefixes.
If the value of this object is 'hostAddress(2)' then
the FEC type described by this row is a host address."
::= { mplsFecEntry 2 }
mplsFecAddrLength OBJECT-TYPE
SYNTAX Integer32(0..255)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If the value of 'mplsFecType' is 'prefix(1)'
then the value of this object is the length in
bits of the address prefix represented by
'mplsFecAddr', or if the length is zero then
this is a special value which indicates that the
prefix matches all addresses. In this case the
prefix is also zero (i.e. 'mplsFecAddr' will
have the value of zero.)"
::= { mplsFecEntry 3 }
mplsFecAddrFamily OBJECT-TYPE
SYNTAX AddressFamilyNumbers
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The value of this object is from the Address Family
Numbers."
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::= { mplsFecEntry 4 }
mplsFecAddr OBJECT-TYPE
SYNTAX MplsLdpGenAddr
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If the value of 'mplsFecType' is 'prefix(1)'
then the value of this object is the address prefix.
If the value of the 'mplsFecAddrLength'
is object is zero, then this object should also be
zero.
If the value of the 'mplsFecType' is 'host(2)'
then this is the host address."
::= { mplsFecEntry 5 }
mplsFecStorType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this entry."
::= { mplsFecEntry 6 }
mplsFecRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An object that allows entries in this table to
be created and deleted using the
RowStatus convention."
::= { mplsFecEntry 7 }
--
-- Mapping Tables between Sessions and the LSR MIB.
--
--
-- SessionInLabels and InSegment
--
mplsLdpSesInLabelMapTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpSesInLabelMapEntry
MAX-ACCESS not-accessible
STATUS current
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DESCRIPTION
"A table of Session's Ingress Labels which
are Mapped to the LSR MIB's mplsInSegmentTable.
Each row represents a single Ingress Label."
::= { mplsLdpSessionObjects 9 }
mplsLdpSesInLabelMapEntry OBJECT-TYPE
SYNTAX MplsLdpSesInLabelMapEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents information on a
single LDP LSP which is represented by
a session's index triple (mplsLdpEntityLdpId,
mplsLdpEntityIndex, mplsLdpPeerLdpId) AND the
index tuple (mplsLdpSessionInLabel, mplsInSegmentIfIndex)
from the LSR MIB's mplsInSegmentTable.
The information contained in a row is read-only."
INDEX { mplsLdpEntityLdpId,
mplsLdpEntityIndex,
mplsLdpPeerLdpId,
mplsLdpSesInLabelIfIndex,
mplsLdpSesInLabel
}
::= { mplsLdpSesInLabelMapTable 1 }
MplsLdpSesInLabelMapEntry ::= SEQUENCE {
mplsLdpSesInLabelIfIndex InterfaceIndex,
mplsLdpSesInLabel MplsLabel,
mplsLdpSesInLabelType MplsLdpLabelTypes,
mplsLdpSesInLabelConnType INTEGER
}
mplsLdpSesInLabelIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The ifIndex of the 'mplsLdpSesInLabel' which should
have the same value as the 'mplsInSegmentIfIndex' in
the LSR MIB."
::= { mplsLdpSesInLabelMapEntry 1 }
mplsLdpSesInLabel OBJECT-TYPE
SYNTAX MplsLabel
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The incoming label of this LSP. This has the same value
as the 'mplsInSegmentLabel' in the LSR MIB."
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::= { mplsLdpSesInLabelMapEntry 2 }
mplsLdpSesInLabelType OBJECT-TYPE
SYNTAX MplsLdpLabelTypes
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Layer 2 Label Type for 'mplsLdpInLabel'."
::= { mplsLdpSesInLabelMapEntry 3 }
mplsLdpSesInLabelConnType OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
xconnect(2),
terminates(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of LSP connection.
The possible values are:
unknown(1) -- this may be the value if the LSP
is in a state of flux. It is
considered to be a temporary
situation.
xconnect(2) -- if the mapping between the
session and the insegment
is associated with an LSP which
is a true cross-connection.
terminates(3) -- if the mapping between the
session and the insegment
is associated with an LSP which
terminates on this LSR and is
not a cross-connection."
::= { mplsLdpSesInLabelMapEntry 4 }
--
-- SessionOutLabels and OutSegment
--
mplsLdpSesOutLabelMapTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpSesOutLabelMapEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of Session's Egress Labels which
are Mapped to the LSR MIB.
Each row represents a single Egress Label."
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::= { mplsLdpSessionObjects 10 }
mplsLdpSesOutLabelMapEntry OBJECT-TYPE
SYNTAX MplsLdpSesOutLabelMapEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents information on a
single session between an LDP Entity and LDP Peer.
The information contained in a row is read-only."
INDEX { mplsLdpEntityLdpId,
mplsLdpEntityIndex,
mplsLdpPeerLdpId,
mplsLdpSesOutLabelIfIndex,
mplsLdpSesOutLabel
}
::= { mplsLdpSesOutLabelMapTable 1 }
MplsLdpSesOutLabelMapEntry ::= SEQUENCE {
mplsLdpSesOutLabelIfIndex InterfaceIndex,
mplsLdpSesOutLabel MplsLabel,
mplsLdpSesOutLabelType MplsLdpLabelTypes,
mplsLdpSesOutLabelConnType INTEGER,
mplsLdpSesOutSegmentIndex Integer32
}
mplsLdpSesOutLabelIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The ifIndex of the 'mplsLdpSesOutLabel'."
::= { mplsLdpSesOutLabelMapEntry 1 }
mplsLdpSesOutLabel OBJECT-TYPE
SYNTAX MplsLabel
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The outgoing label of this LSP."
::= { mplsLdpSesOutLabelMapEntry 2 }
mplsLdpSesOutLabelType OBJECT-TYPE
SYNTAX MplsLdpLabelTypes
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Layer 2 Label Type for 'mplsLdpOutLabel'."
::= { mplsLdpSesOutLabelMapEntry 3 }
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mplsLdpSesOutLabelConnType OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
xconnect(2),
starts(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of LSP connection.
The possible values are:
unknown(1) -- this may be the value if the LSP
is in a state of flux. It is
considered to be a temporary
situation.
xconnect(2) -- if the mapping between the
session and the outsegment
is associated with an LSP which
is a true cross-connection.
starts(3) -- if the mapping between the
session and the insegment
is associated with an LSP which
starts on this LSR and is
considered an ingress to the LSP."
::= { mplsLdpSesOutLabelMapEntry 4 }
mplsLdpSesOutSegmentIndex OBJECT-TYPE
SYNTAX Integer32(1..2147483647)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This value should contain the same value as
the 'mplsOutSegmentIndex' in the LSR MIB.
NOTE: this value will never be zero, because
this table only maps from Sessions to true
outsegments."
::= { mplsLdpSesOutLabelMapEntry 5 }
--
-- Sessions and XConnects (LIB Information)
--
mplsLdpSesXCMapTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpSesXCMapEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
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"A table of Session's Labels which
are Mapped to the LSR MIB 's XConnect table.
Each row represents a single cross connect."
::= { mplsLdpSessionObjects 11 }
mplsLdpSesXCMapEntry OBJECT-TYPE
SYNTAX MplsLdpSesXCMapEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents information on a
single session between an LDP Entity and LDP Peer.
The information contained in a row is read-only."
INDEX { mplsLdpEntityLdpId,
mplsLdpEntityIndex,
mplsLdpPeerLdpId,
mplsLdpSesInLabelIfIndex,
mplsLdpSesInLabel,
mplsLdpSesOutLabelIfIndex,
mplsLdpSesOutLabel
}
::= { mplsLdpSesXCMapTable 1 }
MplsLdpSesXCMapEntry ::= SEQUENCE {
mplsLdpSesXCIndex Integer32
}
mplsLdpSesXCIndex OBJECT-TYPE
SYNTAX Integer32(1..2147483647)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This value should contain the same value as
the 'mplsXCIndex' in the LSR MIB.
NOTE: this value will never be zero, because
this table only maps from Sessions to true
cross connects."
::= { mplsLdpSesXCMapEntry 1 }
--
-- XcrossConnectsFECs Table
--
mplsXCsFecsTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsXCsFecsEntry
MAX-ACCESS not-accessible
STATUS current
Expires February 2002 [Page 59]
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DESCRIPTION
"A table which shows the relationship between
cross-connects and FECs. Each row represents
a single cross connect to FEC association.
This table is read-only."
::= { mplsLdpSessionObjects 13 }
mplsXCsFecsEntry OBJECT-TYPE
SYNTAX MplsXCsFecsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry represents a single cross connect
to FEC association."
INDEX { mplsLdpEntityLdpId,
mplsLdpEntityIndex,
mplsLdpPeerLdpId,
mplsLdpSesInLabelIfIndex,
mplsLdpSesInLabel,
mplsLdpSesOutLabelIfIndex,
mplsLdpSesOutLabel,
mplsFecIndex
}
::= { mplsXCsFecsTable 1 }
MplsXCsFecsEntry ::= SEQUENCE {
mplsXCFecOperStatus INTEGER,
mplsXCFecOperStatusLastChange TimeStamp
}
mplsXCFecOperStatus OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
inUse(2),
notInUse(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An indication of the operational status of
the FEC associated with this cross connect.
unknown(1) - this is a temporary state which
may indicate the LSP-FEC association
is in a state of transition.
inUse(2) - the FEC associated with the XC is
currently being applied.
Expires February 2002 [Page 60]
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notInUse(3) - the FEC associated with the XC is
not being applied. Eventually, this
entry may be aged out."
::= { mplsXCsFecsEntry 1 }
mplsXCFecOperStatusLastChange OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This value of sysUpTime when the
mplsXCFecOperStatus last changed state."
::= { mplsXCsFecsEntry 2 }
--
-- Address Message/Address Withdraw Message Information
--
-- This information is associated with a specific Session
-- because Label Address Messages are sent after session
-- initialization has taken place.
--
mplsLdpSesPeerAddrTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsLdpSesPeerAddrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table 'extends' the mplsLdpSessionTable.
This table is used to store Label Address Information
from Label Address Messages received by this LSR from
Peers. This table is read-only and should be updated
when Label Withdraw Address Messages are received, i.e.
Rows should be deleted as apropriate.
NOTE: since more than one address may be contained
in a Label Address Message, this table 'extends',
rather than 'AUGMENTS' the mplsLdpSessionTable's
information."
::= { mplsLdpSessionObjects 12 }
mplsLdpSesPeerAddrEntry OBJECT-TYPE
SYNTAX MplsLdpSesPeerAddrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents information on
session's for a single next hop address which was
advertised in an Address Message from the LDP peer.
The information contained in a row is read-only."
Expires February 2002 [Page 61]
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INDEX { mplsLdpEntityLdpId,
mplsLdpEntityIndex,
mplsLdpPeerLdpId,
mplsLdpSesPeerAddrIndex
}
::= { mplsLdpSesPeerAddrTable 1 }
MplsLdpSesPeerAddrEntry ::= SEQUENCE {
mplsLdpSesPeerAddrIndex Unsigned32,
mplsLdpSesPeerNextHopAddrType AddressFamilyNumbers,
mplsLdpSesPeerNextHopAddr MplsLdpGenAddr
}
mplsLdpSesPeerAddrIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An index which uniquely identifies this entry within
a given session."
::= { mplsLdpSesPeerAddrEntry 1 }
mplsLdpSesPeerNextHopAddrType OBJECT-TYPE
SYNTAX AddressFamilyNumbers
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The internetwork layer address type of this Next Hop
Address as specified in the Label Address Message
associated with this Session. The value of this
object indicates how to interpret the value of
mplsLdpSessionPeerNextHopAddress."
::= { mplsLdpSesPeerAddrEntry 2 }
mplsLdpSesPeerNextHopAddr OBJECT-TYPE
SYNTAX MplsLdpGenAddr
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of the next hop address."
REFERENCE
"LDP Specification [18] defines only IPv4 for LDP Protocol
Version 1, see section 3.4.3."
::= { mplsLdpSesPeerAddrEntry 3 }
---
--- Notifications
---
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mplsLdpNotificationPrefix OBJECT IDENTIFIER ::=
{ mplsLdpNotifications 0 }
mplsLdpInitSesThresholdExceeded NOTIFICATION-TYPE
OBJECTS {
mplsLdpEntityInitSesThreshold
}
STATUS current
DESCRIPTION
"This notification is generated when the value of
the 'mplsLdpEntityInitSesThreshold' object
is not zero, and the number of Session
Initialization messages exceeds the value
of the 'mplsLdpEntityInitSesThreshold' object."
::= { mplsLdpNotificationPrefix 1 }
mplsLdpPVLMismatch NOTIFICATION-TYPE
OBJECTS {
mplsLdpEntityPVL,
mplsLdpPeerPVL
}
STATUS current
DESCRIPTION
"This notification is generated when the value
of the value of the
'mplsLdpEntityPVLMisTrapEnable'
object is 'enabled(1)' and the
'mplsLdpEntityPVL' does NOT match
the value of the 'mplsLdpPeerPVL' for
a specific Entity."
REFERENCE
"LDP Specification, Section 3.5.3."
::= { mplsLdpNotificationPrefix 2 }
mplsLdpSessionUp NOTIFICATION-TYPE
OBJECTS {
mplsLdpSesState,
mplsLdpSesDiscontinuityTime,
mplsLdpSesStatsUnkMesTypeErrors,
mplsLdpSesStatsUnkTlvErrors
}
STATUS current
DESCRIPTION
"Generation of this trap occurs when the
'mplsLdpSesUpDownTrapEnable' object is 'enabled(1)'
and the value of 'mplsLdpSesState' enters
the 'operational(5)' state."
::= { mplsLdpNotificationPrefix 3 }
mplsLdpSessionDown NOTIFICATION-TYPE
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OBJECTS {
mplsLdpSesState,
mplsLdpSesDiscontinuityTime,
mplsLdpSesStatsUnkMesTypeErrors,
mplsLdpSesStatsUnkTlvErrors
}
STATUS current
DESCRIPTION
"Generation of this trap occurs when the
'mplsLdpSesUpDownTrapEnable' object is
'enabled(1)' and the value of
'mplsLdpSesState' leaves the 'operational(5)'
state."
::= { mplsLdpNotificationPrefix 4 }
--****************************************************************
-- Module Conformance Statement
--****************************************************************
mplsLdpGroups
OBJECT IDENTIFIER ::= { mplsLdpConformance 1 }
mplsLdpCompliances
OBJECT IDENTIFIER ::= { mplsLdpConformance 2 }
--
-- Compliance Statements
--
mplsLdpModuleCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The basic implementation requirements for agents that
support the MPLS LDP MIB."
MODULE -- this module
MANDATORY-GROUPS { mplsLdpGeneralGroup,
mplsLdpNotificationsGroup
}
GROUP mplsLdpGenericGroup
DESCRIPTION
"This group must be supported if Generic Labels
are used in the MPLS LDP implementation."
GROUP mplsLdpAtmGroup
DESCRIPTION
"This group must be supported if ATM is used in the
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MPLS LDP implementation."
GROUP mplsLdpFrameRelayGroup
DESCRIPTION
"This group must be supported if Frame Relay is used
in the MPLS LDP implementation."
GROUP mplsLdpMappingGroup
DESCRIPTION
"This group must be supported if the LSR MIB is
implemented, specifically the mplsInSegmentTable,
the mplsOutSegmentTable or the mplsXCTable."
::= { mplsLdpCompliances 1 }
-- units of conformance
mplsLdpGeneralGroup OBJECT-GROUP
OBJECTS {
mplsLdpLsrId,
mplsLdpLsrLoopDetectionCapable,
mplsLdpEntityIndexNext,
mplsLdpEntityProtocolVersion,
mplsLdpEntityAdminStatus,
mplsLdpEntityOperStatus,
mplsLdpEntityTcpDscPort,
mplsLdpEntityUdpDscPort,
mplsLdpEntityMaxPduLength,
mplsLdpEntityKeepAliveHoldTimer,
mplsLdpEntityHelloHoldTimer,
mplsLdpEntityInitSesThreshold,
mplsLdpEntityLabelDistMethod,
mplsLdpEntityLabelRetentionMode,
mplsLdpEntityPVLMisTrapEnable,
mplsLdpEntityPVL,
mplsLdpEntityHopCountLimit,
mplsLdpEntityTargPeer,
mplsLdpEntityTargPeerAddrType,
mplsLdpEntityTargPeerAddr,
mplsLdpEntityOptionalParameters,
mplsLdpEntityDiscontinuityTime,
mplsLdpEntityStorType,
mplsLdpEntityRowStatus,
mplsLdpAttemptedSessions,
mplsLdpSesRejectedNoHelloErrors,
mplsLdpSesRejectedAdErrors,
mplsLdpSesRejectedMaxPduErrors,
mplsLdpSesRejectedLRErrors,
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mplsLdpBadLdpIdentifierErrors,
mplsLdpBadPduLengthErrors,
mplsLdpBadMessageLengthErrors,
mplsLdpBadTlvLengthErrors,
mplsLdpMalformedTlvValueErrors,
mplsLdpKeepAliveTimerExpErrors,
mplsLdpShutdownNotifReceived,
mplsLdpShutdownNotifSent,
mplsLdpPeerLabelDistMethod,
mplsLdpPeerLoopDetectionForPV,
mplsLdpPeerPVL,
mplsLdpHelloAdjHoldTimeRem,
mplsLdpHelloAdjType,
mplsLdpSesUpDownTrapEnable,
mplsLdpSesState,
mplsLdpSesProtocolVersion,
mplsLdpSesKeepAliveHoldTimeRem,
mplsLdpSesMaxPduLen,
mplsLdpSesDiscontinuityTime,
mplsLdpSesStatsUnkMesTypeErrors,
mplsLdpSesStatsUnkTlvErrors,
mplsLdpSesPeerNextHopAddrType,
mplsLdpSesPeerNextHopAddr,
mplsFecIndexNext,
mplsFecType,
mplsFecAddrFamily,
mplsFecAddrLength,
mplsFecAddr,
mplsFecStorType,
mplsFecRowStatus
}
STATUS current
DESCRIPTION
"Objects that apply to all MPLS LDP implementations."
::= { mplsLdpGroups 1 }
mplsLdpGenericGroup OBJECT-GROUP
OBJECTS {
mplsLdpEntityConfGenIfIndxOrZero,
mplsLdpEntityConfGenLRStorType,
mplsLdpEntityConfGenLRRowStatus
}
STATUS current
DESCRIPTION
"Objects that apply to all MPLS LDP implementations
using Generic Lables."
::= { mplsLdpGroups 2 }
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mplsLdpAtmGroup OBJECT-GROUP
OBJECTS {
mplsLdpEntityAtmIfIndxOrZero,
mplsLdpEntityAtmMergeCap,
mplsLdpEntityAtmLRComponents,
mplsLdpEntityAtmVcDirectionality,
mplsLdpEntityAtmLsrConnectivity,
mplsLdpEntityDefaultControlVpi,
mplsLdpEntityDefaultControlVci,
mplsLdpEntityUnlabTrafVpi,
mplsLdpEntityUnlabTrafVci,
mplsLdpEntityAtmStorType,
mplsLdpEntityAtmRowStatus,
mplsLdpEntityConfAtmLRMaxVpi,
mplsLdpEntityConfAtmLRMaxVci,
mplsLdpEntityConfAtmLRStorType,
mplsLdpEntityConfAtmLRRowStatus,
mplsLdpSesAtmLRUpperBoundVpi,
mplsLdpSesAtmLRUpperBoundVci
}
STATUS current
DESCRIPTION
"Objects that apply to all MPLS LDP implementations
over ATM."
::= { mplsLdpGroups 3 }
mplsLdpFrameRelayGroup OBJECT-GROUP
OBJECTS {
mplsLdpEntityFrIfIndxOrZero,
mplsLdpEntityFrMergeCap,
mplsLdpEntityFrLRComponents,
mplsLdpEntityFrLen,
mplsLdpEntityFrVcDirectionality,
mplsLdpEntityFrParmsStorType,
mplsLdpEntityFrParmsRowStatus,
mplsLdpConfFrMaxDlci,
mplsLdpConfFrStorType,
mplsLdpConfFrRowStatus,
mplsLdpFrSesMaxDlci,
mplsLdpFrSesLen
}
STATUS current
DESCRIPTION
"Objects that apply to all MPLS LDP implementations over
Frame Relay."
::= { mplsLdpGroups 4 }
mplsLdpMappingGroup OBJECT-GROUP
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OBJECTS {
mplsLdpSesInLabelType,
mplsLdpSesInLabelConnType,
mplsLdpSesOutLabelType,
mplsLdpSesOutLabelConnType,
mplsLdpSesOutSegmentIndex,
mplsLdpSesXCIndex,
mplsXCFecOperStatus,
mplsXCFecOperStatusLastChange
}
STATUS current
DESCRIPTION
"These objects are optional and only need to be supported
for LDP implementations which support the
tables, mplsInSegmentTable, mplsOutSegmentTable
and mplsXCTable, in the LSR MIB."
::= { mplsLdpGroups 5 }
mplsLdpNotificationsGroup NOTIFICATION-GROUP
NOTIFICATIONS { mplsLdpInitSesThresholdExceeded,
mplsLdpPVLMismatch,
mplsLdpSessionUp,
mplsLdpSessionDown
}
STATUS current
DESCRIPTION
"The notification(s) which an MPLS LDP implemention
is required to implement."
::= { mplsLdpGroups 6 }
END
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5. Revision History
This section should be removed when this document is published as an
RFC.
5.1. Changes from <draft-ietf-mpls-ldp-mib-07.txt>
There were three types of changes: the first change was that all the
MPLS Textual Conventions from this MIB, the LSR and MPLS-TE MIBs were
moved into a new document [36], "draft-ietf-mpls-tc-mib-00.txt". The
Textual Conventions are now IMPORTED from [36]. The second type of
change was updates based on comments from the IESG. These changes
will be discussed below. The third type of changes were based on
minor editorial changes from the co-authors.
The "Introduction" and "Structure of the MIB" sections were reworded
since they were repetitive.
The "Overview" was rearranged.
References were added to "The LDP Entity ATM Objects" and "The LDP
Entity Frame Relay Objects" Sections.
The Working Group mailing list and Chairs were added to the CONTACT-
INFO.
Updated the DESCRIPTION clause for the "mplsLdpEntityLdpId" object.
Updated the mplsLdpEntityProtocolVersion to include a range
(1..65535).
Updated the "References" Section.
Running the MIB through the smilint MIB compiler showed that some
object names were longer than 32 characters, these were shortened to
32 characters or fewer.
The following changes were from the co-authors.
Other minor editorial changes such as fixing typographical errors,
and removing MIB comments which are no longer meaningful.
Page 17 (also page 46) the description was enhanced to describe the
version field in the LDP header from RFC3036.
Removed WellKnown from the tcp and upd port names. It's the ports
that get set, and the default value is the well known (actually the
registered) port number.
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mplsLdpEntityInitSesTrapEnable object is useless and was removed
since setting mplsLdpEntityInitSesThreshold=0 acheives the same
thing. Also removed it from the descriptive text in section 3.
Page 47, mplsLdpSessionDiscontinuityTime The initial value of this
was changed to be sysUpTime instead of zero. sysUpTime for when the
session starts is more meaningful and was added to the Session
Up/Down Traps also. Also, added the Session specific stats to the
up/down traps.
5.2. Changes from <draft-ietf-mpls-ldp-mib-06.txt>
All changes were from the second last call which took place Thursday,
July 20th, until Thursday, July 27th, 2000 and are described in the
remainder of this section.
Remove the reference to the MPLS framework document.
Add an mplsFecIndexNext type of object.
Change the conformance of the FEC table objects to be part of the
mplsLdpGeneralGroup.
The mplsLdpEntityConfGenericTable is no longer needed because the
functionality has been absorbed by the
mplsLdpEntityConfGenericLabelRangeTable. The
mplsLdpEntityConfGenericTable has been removed and the front section
was updated accordingly.
Other editorial issues, updating references, typos and so forth.
5.3. Changes from <draft-ietf-mpls-ldp-mib-05.txt>
The majority of changes in this revision are based on Last Call
comments which were received during the last call from Thursday,
March 9, 2000 to Friday, March 17, 2000, or slightly thereafter.
Also, changes were made to agree with the latest specifications.
These changes are described in this section.
Changes due to draft-ietf-mpls-ldp-07.txt and draft-ietf-mpls-ldp-
08.txt. Specifically, removing references to IPv4/IP and using router
id, as appropriate.
Removed vpMerge and vpAndVcMerge choices from the object,
mplsLdpEntityAtmMergeCap. VP Merge is not described in [30].
The LIB Table was removed and replaced by mapping tables to map LDP
LSPs created by LDP sessions to the mplsInSegment, mplsOutSegment and
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mplsXC tables in the LSR MIB. The conformance section was updated
to include a Mapping Group which is to be implemented iff these LSR
MIB tables (mplsInSegmentTable, mplsOutSegmentTable and mplsXCTable)
are implemented.
The front section was updated to include information on the Generic
label table.
Added more in the front section on on Row
Creation/adminStatus/OperStatus in the LDP Entity and related tables.
Added a generic label range table. NOTE: there is NO corresponding
LDP message which relates to the information in this table, however,
this table does provide a way for a user to 'reserve' a generic label
range.
A new TEXTUAL-CONVENTION, MplsAtmVcIdentifier was added. This TC has
the same upper bounds as AtmVcIdentifier (from rfc2514) except that
the lower bound is 32 (and not 0). The lower bound is 32 since this
value is specified by [30].
Removed the scalar object mplsLsrLabelRetentionMode and added
mplsLdpEntityLabelRetentionMode. The change was made to allow
configuring the retention mode on a per LDP Entity basis, as opposed
for the entire LSR.
Typo in section 3.5.2 was fixed.
Typo in the mplsLdpSessionUp notification description was fixed.
Section 'LDP Notifications' was expanded to cover both the
'mplsLdpSessionUp' and 'mplsLdpSessionDown' traps. Also, the objects
which enable and disable these traps have been described in this
Section:
The 'mplsLdpEntityHopCountLoopDetection' object and the
'mplsLdpEntityHopCount' object have been combined into the new
object, 'mplsLdpEntityHopCountLimit'.
MplsLabel has been updated to reflect the VPI value of 12 bits and
not 8.
Added DEFVAL clause to the 'mplsLdpEntityWellKnownDiscoveryPort'
object. The default value is 646.
Added UNITS and DEFVAL clauses to the 'mplsLdpEntityMaxPduLength'
object. The default value is 4096 and the units is octets.
Added DEFVAL clause to 'mplsLdpEntityProtocolVersion' object. The
default value is 1.
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Added DEFVAL clause to 'mplsLdpEntityKeepAliveHoldTimer' of 40
seconds.
Added DEFVAL clause to 'mplsLdpEntityInitSesThreshold' object. The
default value is 8.
The mplsLdpEntityWellKnownDiscoveryPort was changed into two objects,
one for TCP and one for UDP. The names are
Typo in the description for the
The mplsLdpEntityPeerTable was (re-)named mplsLdpPeerTable. The
mplsLdpSessionTable now AUGMENTs the mplsLdpPeerTable in order to
show that these two tables are related. There has been wording added
to the mplsLdpSessionEntry description and to the description for the
mplsLdpPeerTable.
5.4. Changes from <draft-ietf-mpls-ldp-mib-04.txt>
Editorial changes, fixing typo's, fixing wrapping lines, etc.
Updated references for latest drafts, and added [31] and [32] to
Reference Section.
Added to the Acknowledgements Section.
Changed the SYNTAX and DESCRIPTION of the
'mplsLdpLsrLoopDetectionCapable' object, so that it will also support
the loop detection by hop count.
Combined the 'mplsLdpEntityLoopDetectionForPV' and 'mplsLdpEntityPVL'
objects. The functionality of the 'mplsLdpEntityLoopDectionForPV' is
now denoted by the value of 0 (zero) in the 'mplsLdpEntityPVL'
object. This results in one less object
'mplsLdpEntityLoopDectionForPV' but does not sacrifice functionality.
Changed 'mplsLdpLibLabelType' into two objects:
'mplsLdpLibInLabelType' and differ from the egress label type. The
MIB now reflects this.
The following items were changed as a result of the Frame Relay Forum
dropping support for 17-bit DLCIs: the MplsLabel TC description has
been modified, and other Frame Relay Object descriptions were also
modified (as specified in this section).
The MplsLabel TC was also modified and reference 3. was added to the
REFERENCE Clause.
MplsLdpLabelTypes TC was modified to use an enum.
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InterfaceIndex support was added to the Entity information. This was
specifically requested by several members of the working group. An
additional table, mplsLdpEntityConfGenericTable as a way to configure
Generic Labels, and an object, 'mplsLdpConfGenericIfIndexOrZero was
added to map the InterfaceIndex used by Generic Labels. Objects were
also added to the 'mplsLdpEntityAtmParmsTable' and the and
'mplsLdpEntityFrIfIndex', respectively.
Changed the name of the 'mplsLdpEntityMtu' object to be
'mplsLdpEntityMaxPduLength' which is more consistent with the LDP
Specification. Also, the description and SYNTAX were changed.
Changed the SYNTAX of the 'mplsLdpSessionMaxPduLength' to unsigned32
and changed the Range from (0..65535) to (1..65535).
Added and improved the front section discussion on SNMP
Notifications.
Also, modified the DESCRIPTION clause of the
Added objects to enable/disable the sending of traps:
Added an object to enable/disable sending traps for Sessions changing
from Up to Down, or Down to Up.
Added notifications to generate traps from session changing from Up
to Down, or Down to up.
Added a StorageType object to the Entity and associated tables which
are configurable.
Added a Discontinuity Time object to the Entity Table,
Added discussion on row creation in the Entity and other associated
Entity tables. This is a new Section in the Front part of the
document called:
Removed the 'mplsLdpEntityControlMethod'.
Made 'mplsLdpFecLspId' as part of the INDEX for the FEC table. This
is to allow FECs to map to multiple LSPs. Also add a RowPointer to a
row in the Session Table.
Added an operation status object, 'mplsLdpLspOperStatus' and a last
Change object, 'mplsLdpLspLastChangeto the LIB Table. This will be
used to detect whether an LSP has changed its status.
Changed the name of the mplsLdpPeerTable to the
mplsLdpEntityPeerTable. This table contains information relevant to
Peers which are known to specific Entities. The indexing of this
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table has also changed to include the Row in the Entity Table that
this Peer is known by. The mplsLdpHelloAdjacencyTable and the
mplsLdpSessionTable have been moved under this table. Since Hello
Adjacencies are related to Entity-Peer information and Sessions are
related to Entity-Peer information this was seen as a comprehensive
and coherent modelling. Associated descriptions in the front section
and in the tables have been changed to reflect this change.
Moved the 'mplsLdpConfFrLen' object from the
'mplsLdpEntityConfFrLabelRangeTable' to the
'mplsLdpEntityFrameRelayParmsTable' since the Frame Relay
interface/port can only use one header length at a time, i.e. a
specific FR interface supports one address length for all VCs on that
interface. Also, changed the object so that it only supports 10 and
23 bit DLCI lengths. (The 17 bit length was dropped by the Frame
Relay Forum and thus, is no longer required.) The name of this
object was changed from 'mplsLdpConfFrLen' to 'mplsLdpEntityFrLen' to
fit in with the 'mplsLdpEntityFrameRelayParmsTable'.
Removed the seventeenDlciBits(1) value from the mplsLdpFrSessionLen
object. (The 17 bit length was dropped by the Frame Relay Forum and
thus, is no longer required.)
Corrected the range of the 'mplsLdpEntityIndexNext' object to include
0 (zero).
5.5. Changes from <draft-ietf-mpls-ldp-mib-03.txt>
Reworded the description of the mplsLdpAtmSessionTable to clarify
that one or MORE label range intersection(s) is/are represented in
this table.
Reworded the description of the mplsLdpFrameRelaySessionTable to
clarify that one or MORE label range intersection(s) is/are
represented in this table.
Added a new index, mplsLdpSessionPeerIndex, to the
mplsLdpSessionPeerAddressTable. This new index uniquely identifies
the entry within a given session. (Since adding
mplsLdpSessionPeerNextHopAddressType,
mplsLdpSessionPeerNextHopAddress to the INDEX clause of the
mplsLdpSessionPeerAddressTable leaves a table with only indices and
no objects, the work around was to add a new index which uniquely
differentiates an entry within a given session.)
Quite a few changes to the mplsLdpPeerTable. First, removed the
mplsLdpPeerIndex from the mplsLdpPeerTable and other tables. This
index served no purpose, so was removed. Second, removed the
objects: mplsLdpPeerInternetworkAddrType, and
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mplsLdpPeerInternetworkAddr. Third, reworded the description of this
table to include information which is known during Session
Intialization attempts, the specific information has to do with Loop
Dection based on Path Vectors. Since Section 3.5.3 of the LDP Spec
when describing the PVLim says: "Although knowledge of a peer's path
vector limit will not change an LSR's behavior, it does enable the
LSR to alert an operator to a possible misconfiguration." and the
object mplsLdpPeerPVL is sent as a varbind in the mplsLdpPVLMismatch
notification.
Removed the mplsLdpPeerIndex from the mplsLdpHelloAdjacencyTable.
Removed the "IANA Address Family Numbers" MIB section.
Updated the boiler.me from the ops web page dated Weds., Dec 22,
1999.
Updated the Security Section from the ops web page.
Added the following objects to the mplsLdpEntityTable:
mplsLdpEntityControlMethod, mplsLdpEntityLoopDectionForPV, and
mplsLdpEntityPathVectorLimit.
Removed mplsLdpSessionLabelAdvertisement,
mplsLdpSessionLoopDetectionForPV, and mplsLdpSessionPathVectorLimit
from the mplsLdpSessionTable.
Changed the mplsLdpPathVectorLimitMismatch Notification to send
mplsLdpEntityPathVectorLimit (instead of
mplsLdpSessionPathVectorLimit).
Copied the MplsLabel TC from draft-ietf-mpls-lsr-mib-00.txt and
replaced the MplsLdpGenAddr for mplsLdpLibInLabel and
mpslLdpLibOutLabel with MplsLabel.
The mplsLdpSessionIndex was removed throughout the MIB. This was
replaced by the object mplsLdpSessionDiscontinuityTime. The
motivation was to reduce the number of indices.
The descriptions for the objects in the mplsLdpSessionStatsTable,
mplsLdpSessionStatsUnknownMessageTypeErrors and
mplsLdpSessionStatsUnknownTlvErrors, have been updated to include a
reference to the mplsLdpSessionDiscontinuityTime object.
5.6. Changes from <draft-ietf-mpls-ldp-mib-02.txt>
Added Scalar Objects: mplsLdpLsrLoopDetectionPresent, and
mplsLdpEntityIndexNext.
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Added the following objects to the mplsLdpEntityTable:
mplsLdpEntityProtocolVersion, mplsLdpEntityAdminStatus,
mplsLdpEntityOperStatus, mplsLdpEntityTargetedPeer,
mplsLdpEntityTargetedPeerAddrType, mplsLdpEntityTargetedPeerAddr, and
mplsLdpEntityHelloHoldTimer.
Changed the description of the mplsLdpEntityAtmParmsTable and added
the following objects to this table:
mplsLdpEntityAtmLsrConnectivity, mplsLdpEntityDefaultControlVpi,
mplsLdpEntityDefaultControlVci, mplsLdpEntityUnlabTrafVpi, and
mplsLdpEntityUnlabTrafVci. NOTE: the last four objects were in
Version 01 of the MIB but were mistakenly omitted from Version 02.
Now, they are back.
Changed the indexing of the mplsLdpEntityConfAtmLabelRangeTable to
include the minimum VPI/VCI. This is to ensure that indices in this
table are unique.
Changed the indexing of the mplsLdpEntityConfFrLabelRangeTable, to
include the minimum DLCI value. This is to ensure that indices in
this table are unique.
Added [30] to Reference Section.
5.7. Changes from <draft-ietf-mpls-ldp-mib-01.txt>
The MIB was updated to correspond to draft-ietf-mpls-ldp-06.txt of
the LDP Specification [18].
The front section was updated.
The MIB was made to be less ATM-centric. Essentially, the ATM
specific objects where removed from the tables and placed in ATM
specific Tables. A type was added to the base tables and a row is to
be created in the ATM/FR/etc. type table. Apropos compliance
statements were added to reflect the separation of ATM and Frame
Relay objects into their respective tables.
Objects for Loop Detection were removed from describing the LDP
implementation (i.e. the scalars were removed) and Loop Dection
objects were added to the Session Table. (Although as the LDP
Specification indicates loop detection should be for an LSR within a
domain.)
The following tables were added: mplsLdpEntityAtmParmsTable,
mplsLdpEntityConfAtmLabelRangeTable, mplsLdpFrameRelayParmsTable,
mplsLdpConfFrLabelRangeTable, mplsLdpAtmSessionTable,
mpslLdpFrameRelaySessionTable, mplsLdpSessionPeerAddressTable,
mplsLdpLibTable, and the mplsLdpFecTable.
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The following notifications were added: notification for Session
removal.
The following objects were removed from the Session Table:
mplsLdpSessionRole was removed (this can be determined by comparing
LSR Ids and does not need to be explicitely in the MIB.) ATM
specific objects (mplsLdpSessionAtmLabelRangeLowerBoundVpi
mplsLdpSessionAtmLabelRangeLowerBoundVci,
mplsLdpSessionAtmLabelRangeUpperBoundVpi
mplsLdpSessionAtmLabelRangeUpperBoundVci) were removed and put into a
separate table. Frame Relay objects were added in a separate table.
Hello Adjacency Table was updated.
The objects, mplsLdpSessionRejectedParamErrors,
mplsLdpSessionRejectedNoHelloErrors, mplsLdpBadLdpIdentifierErrors,
mplsLdpBadPduLengthErrors, mplsLdpBadMessageLengthErrors,
mplsLdpBadTlvLengthErrors, mplsLdpMalformedTlvValueErrors,
mplsLdpKeepAliveTimerExpiredErrors, mplsLdpShutdownNotifReceived, and
mplsLdpShutdownNotifSent were added to the mplsLdpEntityStatsTable.
The mplsLdpSessionStatsTable was added to count statics based on a
per Session basis.
The mplLdpPeerConfAtmLabelRangeTable has been removed. There is no
need to configure information for a Peer. All information for a peer
is learned, thus peer information is read-only.
(Editorial) References were updated to reflect the documents which
this version was based on.
5.8. Changes from <draft-ietf-mpls-ldp-mib-00.txt>
Textual conventions were added for the LSR Identifier and the LDP
Identifier.
Top-level mib structure was added. The LDP MIB falls under a proposed
hierarchy of mpls.mplsProtocols.
The mib hierarchy within the LDP MIB was also changed. A new branch,
under mpls.mplsProtocols.mplsLdpMIB.mplsLdpObjects was added. This
branch is mplsLdpLsrObjects. Currently, this contains several new
scalar objects: mplsLdpLsrID, mplsLdpLsrLoopDetectionPresent,
mplsLdpLsrLoopDetectinAdminStatus, mplsLdpLsrPathVectorLimit,
mplsLdpLsrHopCountLimit, mplsLdpLsrLoopPreventionPresent,
mplsLdpLsrLoopPreventionAdminStatus, and
mplsLdpLsrLabelRetentionMode.
mplsLdpEntityTable is now indexed by mplsLdpEntityIdentifier, which
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is the LDP Identifier used in Session establishment.
mplsLdpEntityLoopDetection and mplsLdpEntityLoopPrevention objects
were removed from this table.
The following objects were added to the mplsLdpEntityTable:
mplsLdpEntityLabelSpaceType, mplsLdpEntityUnlabTrafVpi,
mplsLdpEntityUnlabTrafVci, mplsLdpEntityMergeCapability,
mplsLdpEntityVcDirectionality, and
mplsLdpEntityLabelDistributionMethod.
The following objects were added to the mplsLdpPeerEntityTable:
mplsLdpPeerLabelDistributionMethod.
The following object was removed from the mplsLdpEntityStatsTable:
mplsLdpEntityEstablishedSessions.
References were added and revised.
6. Acknowledgments
The authors would like to thank the following people: Leigh
McLellan, Geetha Brown, Geping Chen and Charlan Zhou from Nortel
Networks, and Zoltan Takacs and Bo Augustsson from Ericsson. Also,
some members of the working group were very helpful with comments and
corrections to the MIB; the authors would like to thank Adrian Farrel
of Movaz Networks, and Alan Kullberg from NetPlane Systems.
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7. References
[RFC2571] Harrington, D., Presuhn, R., and B. Wijnen, "An Architecture
for Describing SNMP Management Frameworks", RFC 2571, April
1999.
[RFC1155] Rose, M., and K. McCloghrie, "Structure and Identification
of Management Information for TCP/IP-based Internets", STD
16, RFC 1155, May 1990.
[RFC1212] Rose, M., and K. McCloghrie, "Concise MIB Definitions", STD
16, RFC 1212, March 1991.
[RFC1215] M. Rose, "A Convention for Defining Traps for use with the
SNMP", RFC 1215, March 1991.
[RFC2578] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
Rose, M., and S. Waldbusser, "Structure of Management
Information Version 2 (SMIv2)", STD 58, RFC 2578, April
1999.
[RFC2579] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
Rose, M., and S. Waldbusser, "Textual Conventions for
SMIv2", STD 58, RFC 2579, April 1999.
[RFC2580] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
Rose, M., and S. Waldbusser, "Conformance Statements for
SMIv2", STD 58, RFC 2580, April 1999.
[RFC1157] Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple
Network Management Protocol", STD 15, RFC 1157, May 1990.
[RFC1901] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
"Introduction to Community-based SNMPv2", RFC 1901, January
1996.
[RFC1906] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
"Transport Mappings for Version 2 of the Simple Network
Management Protocol (SNMPv2)", RFC 1906, January 1996.
[RFC2572] Case, J., Harrington D., Presuhn R., and B. Wijnen, "Message
Processing and Dispatching for the Simple Network Management
Protocol (SNMP)", RFC 2572, April 1999.
[RFC2574] Blumenthal, U., and B. Wijnen, "User-based Security Model
(USM) for version 3 of the Simple Network Management
Protocol (SNMPv3)", RFC 2574, April 1999.
[RFC1905] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
"Protocol Operations for Version 2 of the Simple Network
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Management Protocol (SNMPv2)", RFC 1905, January 1996.
[RFC2573] Levi, D., Meyer, P., and B. Stewart, "SNMPv3 Applications",
RFC 2573, April 1999.
[RFC2575] Wijnen, B., Presuhn, R., and K. McCloghrie, "View-based
Access Control Model (VACM) for the Simple Network
Management Protocol (SNMP)", RFC 2575, April 1999.
[RFC2570] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction to Version 3 of the Internet-standard Network
Management Framework", RFC 2570, April 1999.
[17] Narten, T., and H. Alvestrand, "Guidelines for Writing an IANA
Considerations Section in RFCs.", RFC 2434, IBM, Maxware, October
1998
[18] Andersson, L., Doolan, P., Feldman, N., Fredette, A., and B.
Thomas, "LDP Specification", RFC 3036, January 2001.
[19] Rosen, E., Viswananthan, A., and R. Callon, "Multiprotocol Label
Switching Architecture", RFC 3031, January 2001.
[20] Jamoussi, B., editor, "Constraint-Based LSP Setup using LDP",
draft-ietf-mpls-cr-ldp-05.txt, February 2001.
[21] Bradner, S., "Key words for use in RFCs to Indicate Requirement
Levels", BCP 14, RFC 2119, Harvard University, March 1997
[22] Bradner, S., "The Internet Standards Process -- Revision 3", BCP 9,
RFC 2026, Harvard University, October 1996
[23] Srinivansan, C., Viswanathan, A., and T. Nadeau "MPLS Label Switch
Router Management Information Base Using SMIv2", draft-ietf-mpls-
lsr-mib-07.txt, January 2001.
[24] Greene, M., Cucchiara, J., and J. Luciani, "Definition of Managed
Objects for the NBMA Next Hop Resolution Protocol (NHRP)", RFC
2677, August 1999.
[25] Internet Assigned Numbers Authority (IANA), ADDRESS FAMILY NUMBERS,
(http://www.isi.edu/in-notes/iana/assignments/address-family-
numbers), for MIB
(ftp://ftp.isi.edu/mib/ianaaddressfamilynumbers.mib).
[26] Noto, M., E. Spiegel, K. Tesink, editors, "Definition of Textual
Conventions and OBJECT-IDENTITIES for ATM Management", RFC 2514,
February 1999.
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[27] McCloghrie, K., F. Kastenholz, "The Interfaces Group MIB using
SMIv2", RFC 2863, June 2000.
[28] Tesink, K. (ed.) "Definitions of Managed Objects for ATM
Management", RFC 2515, February 1999.
[29] Grossman, D., and J. Heinanen, "Multiprotocol Encapsulation over
ATM Adaptation Layer 5", RFC 2684, September 1999.
[30] Davie, B., Lawrence, J., McCloghrie, K., Rosen, E., Swallow, G.,
Rekhter, Y. and P. Doolan, "MPLS using LDP and ATM VC Switching",
RFC 3035, January 2001.
[31] Rosen, E., Tappan, D., Fedorkow, G., Rekhter, Y., Farinacci, D.,
Li, T. and A. Conta, "MPLS Label Stack Encoding", RFC 3032, January
2001.
[32] Conta, A., Doolan, P., and A. Malis, "Use of Label Switching on
Frame Relay Networks Specification", RFC 3034, January 2001.
[33] Boscher, C., Cheval, P., Wu L. and E. Gray, "LDP State Machine",
draft-ietf-mpls-ldp-state-04.txt, March 2000.
[34] Thomas, B. and E. Gray, "LDP Applicability", RFC 3037, January
2001.
[35] Daniele, M., Haberman, B., Routhier, S. and J. Schoenwaelder,
"Textual Coventions for Internet Network Addresses", RFC 2851, June
2000.
[36] Nadeau, T., Cucchiara, J., Srinivasan, C., Viswanathan, A. and H.
Sjostrand, "Definitions of Textual Conventions and OBJECT-
IDENTITIES for Multi-Protocol Label Switching Management", April
2001.
8. Security Considerations
There are a number of management objects defined in this MIB that have 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.
There are a number of managed objects in this MIB that may contain
sensitive information. These are contained in the mplsLdpEntityTable.
The objects contained in this table are responsible for setting up or
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tearing down LSPs.
It is thus important to control even GET access to these objects and
possibly to even encrypt the values of these object when sending them
over the network via SNMP. Not all versions of SNMP provide features
for such a secure environment.
SNMPv1 by itself is not a secure environment. 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.
It is recommended that the implementers consider the security
features as provided by the SNMPv3 framework. Specifically, the use
of the User-based Security Model RFC 2574 [RFC2574] and the View-
based Access Control Model RFC 2575 [RFC2575] is recommended.
It is then a customer/user responsibility to ensure that the SNMP
entity giving access to an instance of this MIB, 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.
9. Authors' Addresses
James V. Luciani
Crescent Networks
900 Chelmsford Street
Lowell, MA 01851
USA
Email: jluciani@crescentnetworks.com
Hans Sjostrand
ipUnplugged
P.O. Box 101 60
S-121 28 Stockholm, Sweden
Phone: +46 8 725 5930
Email: hans@ipunplugged.com
Joan Cucchiara
Crescent Networks
900 Chelmsford Street
Lowell, MA 01851
USA
Phone: (978) 275-3183
Email: jcucchiara@crescentnetworks.com
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10. Full Copyright Statement
Copyright (C) The Internet Society (2001). All Rights Reserved.
This document and translations of it may be copied and furnished to
others, and derivative works that comment on or otherwise explain it
or assist in its implementation may be prepared, copied, published
and distributed, in whole or in part, without restriction of any
kind, provided that the above copyright notice and this paragraph are
included on all such copies and derivative works. However, this
document itself may not be modified in any way, such as by removing
the copyright notice or references to the Internet Society or other
Internet organizations, except as needed for the purpose of
developing Internet standards in which case the procedures for
copyrights defined in the Internet Standards process must be
followed, or as required to translate it into languages other than
English.
The limited permissions granted above are perpetual and will not be
revoked by the Internet Society or its successors or assigns.
This document and the information contained herein is provided on an
"AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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