RFC3812: Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) Management Information Base (MIB)
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Related keywords:
(management information base)
(MIB)
(mpls)
(multiprotocol label switching)
(te)
(traffic engineering)
Network Working Group C. Srinivasan
Request for Comments: 3812 Bloomberg L.P.
Category: Standards Track A. Viswanathan
Force10 Networks, Inc.
T. Nadeau
Cisco Systems, Inc.
June 2004
Multiprotocol Label Switching (MPLS) Traffic Engineering (TE)
Management Information Base (MIB)
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2004).
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 Multiprotocol Label
Switching (MPLS) based traffic engineering (TE).
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology. . . . . . . . . . . . . . . . . . . . . . . . . . 2
3. The Internet-Standard Management Framework . . . . . . . . . . 3
4. Feature List . . . . . . . . . . . . . . . . . . . . . . . . . 3
5. Outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5.1. Summary of Traffic Engineering MIB Module. . . . . . . . 4
6. Brief Description of MIB Objects . . . . . . . . . . . . . . . 4
6.1. mplsTunnelTable. . . . . . . . . . . . . . . . . . . . . 4
6.2. mplsTunnelResourceTable. . . . . . . . . . . . . . . . . 5
6.3. mplsTunnelHopTable . . . . . . . . . . . . . . . . . . . 5
6.4. mplsTunnelARHopTable . . . . . . . . . . . . . . . . . . 5
6.5. mplsTunnelCHoptable. . . . . . . . . . . . . . . . . . . 5
6.6. mplsTunnelPerfTable. . . . . . . . . . . . . . . . . . . 6
6.7. mplsTunnelCRLDPResTable. . . . . . . . . . . . . . . . . 6
7. Use of 32-bit and 64-bit Counters. . . . . . . . . . . . . . . 6
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8. Application of the Interface Group to MPLS Tunnels . . . . . . 6
8.1. Support of the MPLS Tunnel Interface by ifTable. . . . . 7
9. Example of Tunnel Setup. . . . . . . . . . . . . . . . . . . . 8
10. The Use of RowPointer. . . . . . . . . . . . . . . . . . . . . 11
11. MPLS Traffic Engineering MIB Definitions . . . . . . . . . . . 11
12. Security Considerations. . . . . . . . . . . . . . . . . . . . 63
13. Acknowledgments. . . . . . . . . . . . . . . . . . . . . . . . 64
14. IANA Considerations. . . . . . . . . . . . . . . . . . . . . . 64
14.1. IANA Considerations for MPLS-TE-STD-MIB. . . . . . . . . 65
15. References . . . . . . . . . . . . . . . . . . . . . . . . . . 65
15.1. Normative References . . . . . . . . . . . . . . . . . . 65
15.2. Informative References . . . . . . . . . . . . . . . . . 66
16. Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . 67
17. Full Copyright Statement . . . . . . . . . . . . . . . . . . . 68
1. Introduction
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in the Internet community.
In particular, it describes managed objects for modeling a
Multiprotocol Label Switching (MPLS) [RFC3031] based traffic
engineering. This MIB module should be used in conjunction with the
companion document [RFC3813] for MPLS based traffic engineering
configuration and management.
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 BCP 14, RFC 2119,
reference [RFC2119].
2. Terminology
This document uses terminology from the MPLS architecture document
[RFC3031] and MPLS Label Switch Router MIB [RFC3813]. Some
frequently used terms are described next.
An explicitly routed LSP (ERLSP) is referred to as an MPLS tunnel.
It consists of in-segment(s) and/or out-segment(s) at the
egress/ingress LSRs, each segment being associated with one MPLS
interface. These are also referred to as tunnel segments.
Additionally, at an intermediate LSR, we model a connection as
consisting of one or more in-segments and/or one or more out-
segments. The binding or interconnection between in-segments and
out-segments is performed using a cross-connect. These objects are
defined in the MPLS Label Switch Router MIB [RFC3813].
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3. The Internet-Standard Management Framework
For a detailed overview of the documents that describe the current
Internet-Standard Management Framework, please refer to section 7 of
RFC 3410 [RFC3410].
Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. MIB objects are generally
accessed through the Simple Network Management Protocol (SNMP).
Objects in the MIB are defined using the mechanisms defined in the
Structure of Management Information (SMI). This memo specifies a MIB
module that is compliant to the SMIv2, which is described in STD 58,
RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
[RFC2580].
4. Feature List
The MPLS traffic engineering MIB module is designed to satisfy the
following requirements and constraints:
- The MIB module supports configuration of point-to-point
unidirectional tunnels.
- MPLS tunnels need not be interfaces, but it is possible to
configure a tunnel as an interface.
- The MIB module supports tunnel establishment via an MPLS
signalling protocol wherein the tunnel parameters are specified
using this MIB module at the head end of the LSP, and end-to-end
tunnel LSP establishment is accomplished via signalling. The MIB
module also supports manually configured tunnels, i.e., those for
which label associations at each hop of the tunnel LSP are
provisioned by the administrator via the LSR MIB [RFC3813].
- The MIB module supports persistent, as well as non-persistent
tunnels.
5. Outline
Traffic engineering support for MPLS tunnels requires the following
configuration:
- Setting up MPLS tunnels along with appropriate configuration
parameters.
- Configuring tunnel for loose and strict source routed hops.
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These actions may need to be accompanied by corresponding actions
using [RFC3813] to establish and configure tunnel segments, if this
is done manually. Also, the in-segment and out-segment performance
tables, mplsInSegmentPerfTable, and mplsOutSegmentPerfTable
[RFC3813], should be used to determine performance of the tunnels and
tunnel segments, in addition to mplsTunnelPerfTable in this MIB
module.
5.1. Summary of Traffic Engineering MIB Module
The MIB module objects for performing these actions consist of the
following tables:
- Tunnel table (mplsTunnelTable) for setting up MPLS tunnels.
- Resource table (mplsTunnelResourceTable) for setting up the tunnel
resources.
- Tunnel specified, actual, and computed hop tables
(mplsTunnelHopTable, mplsTunnelARHopTable, and
mplsTunnelCHopTable) for strict and loose source routed MPLS
tunnel hops.
- Tunnel performance table (mplsTunnelPerfTable) for measuring
tunnel performance.
- CRLDP resource table (mplsTunnelCRLDPResTable) for specifying
resource objects applicable to tunnels signaled using CRLDP.
These tables are described in the subsequent sections.
6. Brief Description of MIB Objects
The objects described in this section support the functionality
described in documents [RFC3209] and [RFC3212]. The tables support
both manually configured and signaled tunnels.
6.1. mplsTunnelTable
The mplsTunnelTable allows new MPLS tunnels to be created between an
MPLS LSR and a remote endpoint, and existing tunnels to be
reconfigured or removed. Note that we only support point-to-point
tunnels, although multipoint-to-point and point-to-multipoint
connections are supported by an LSR acting as a cross-connect. Each
MPLS tunnel can thus have one out-segment originating at an LSR
and/or one in-segment terminating at that LSR.
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mplsTunnelTable does not define the in and out segments forming the
tunnel. Instead, these are defined by creating rows in the in-
segment and out-segment tables, defining relationships in the cross-
connect table, and referring to these rows in the mplsTunnelTable
using a cross-connect index, mplsTunnelXCIndex. These segment and
cross-connect related objects are defined in [RFC3813].
6.2. mplsTunnelResourceTable
mplsTunnelResourceTable is used to indicate the resources required
for a tunnel. Multiple tunnels may share the same resources by
pointing to the same entry in this table. Tunnels that do not share
resources must point to separate entries in this table.
6.3. mplsTunnelHopTable
mplsTunnelHopTable is used to indicate the hops, strict or loose, for
an MPLS tunnel defined in mplsTunnelTable, when it is established via
signalling. Multiple tunnels may share the same hops by pointing to
the same entry in this table. Each row also has a secondary index,
mplsTunnelHopIndex, corresponding to the next hop of this tunnel.
The scalar mplsTunnelMaxHops indicates the maximum number of hops
that can be specified on each tunnel supported by this LSR.
At transit LSRs, this table contains the hops, strict or loose, that
apply to the downstream part of this tunnel only. This corresponds
to the requested path received through the signaling protocol.
6.4. mplsTunnelARHopTable
mplsTunnelARHopTable is used to indicate the actual hops traversed by
a tunnel as reported by the MPLS signalling protocol after the tunnel
is setup. The support of this table is optional since not all MPLS
signalling protocols may support this feature.
At transit LSRs, this table contains the actual hops traversed by the
tunnel along its entire length if that information is available.
This corresponds to the recorded path reported by the MPLS signalling
protocol, possibly derived from multiple signaling messages.
6.5. mplsTunnelCHoptable
mplsTunnelCHopTable lists the actual hops computed by a constraint-
based routing algorithm based on the mplsTunnelHopTable for the MPLS
signalling protocol in use. The support of this table is optional
since not all implementations may support computation of hop lists
using a constraint-based routing protocol.
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At transit LSRs, this table contains the hops computed to apply to
the downstream part of this tunnel. This corresponds to the
requested path signaled from this LSR through the signaling protocol.
6.6. mplsTunnelPerfTable
mplsTunnelPerfTable provides several counters to measure the
performance of the MPLS tunnels. This table augments
mplsTunnelTable.
6.7. mplsTunnelCRLDPResTable
mplsTunnelCRLDPResTable contains resource information for those
tunnels that are signaled using CRLDP [RFC3212]. This is a sparse
extension to mplsTunnelResourceTable and is also indexed by
mplsTunnelResourceIndex. As with mplsTunnelResourceTable, multiple
tunnels may share the same resources by pointing to the same entry in
this table. Tunnels that do not share resources must point to
separate entries in this table. The mplsTunnelCRLDPResTable may be
supported only by implementations that support the CR-LDP signaling
protocol.
7. Use of 32-bit and 64-bit Counters
64-bit counters are provided in this MIB module for high-speed
interfaces where the use of 32-bit counters might be impractical.
The requirements on the use of 32-bit and 64-bit counters (copied
verbatim from [RFC2863]) are as follows:
For interfaces that operate at 20,000,000 (20 million) bits per
second or less, 32-bit byte and packet counters MUST be supported.
For interfaces that operate faster than 20,000,000 bits/second, and
slower than 650,000,000 bits/second, 32-bit packet counters MUST be
supported and 64-bit octet counters MUST be supported. For
interfaces that operate at 650,000,000 bits/second or faster, 64-bit
packet counters AND 64-bit octet counters MUST be supported.
8. Application of the Interface Group to MPLS Tunnels
The Interfaces Group of MIB II defines generic managed objects for
managing interfaces. This memo contains the media-specific
extensions to the Interfaces Group for managing MPLS Tunnels as
logical interfaces.
This memo assumes the interpretation of the Interfaces Group to be in
accordance with [RFC2863] which states that the interfaces table
(ifTable) contains information on the managed resource's interfaces
and that each sub-layer below the internetwork layer of a network
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interface is considered an interface. Thus, the MPLS interface is
represented as an entry in the ifTable. The inter-relation of
entries in the ifTable is defined by the Interfaces Stack Group
defined in [RFC2863].
When using MPLS Tunnels as interfaces, the interface stack table
might appear as follows:
+------------------------------------------------+
| MPLS tunnel interface ifType = mplsTunnel(150) |
+------------------------------------------------+
| MPLS interface ifType = mpls(166) |
+------------------------------------------------+
| Underlying layer |
+------------------------------------------------+
In the above diagram, "Underlying Layer" refers to the ifIndex of any
interface type for which MPLS internetworking has been defined.
Examples include ATM, Frame Relay, and Ethernet.
8.1. Support of the MPLS Tunnel Interface by ifTable
Some specific interpretations of the ifTable for those MPLS tunnels
represented as interfaces follow:
Object Use for the MPLS tunnel.
ifIndex Each MPLS tunnel is represented by an
ifEntry.
ifDescr Description of the MPLS tunnel.
ifType The value that is allocated for the MPLS
tunnel is 150.
ifSpeed The total bandwidth in bits per second
for use by the MPLS tunnel.
ifPhysAddress Unused.
ifAdminStatus See [RFC2863].
ifOperStatus This value reflects the actual
operational status of the MPLS tunnel.
Assumes the value down(2) if the MPLS
tunnel is down.
ifLastChange See [RFC2863].
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ifInOctets The number of octets received over the
MPLS tunnel.
ifOutOctets The number of octets transmitted over
the MPLS tunnel.
ifInErrors The number of labeled packets dropped
due to uncorrectable errors.
ifInUnknownProtos The number of received packets
discarded during packet header
validation, including packets with
unrecognized label values.
ifOutErrors See [RFC2863].
ifName Textual name (unique on this system) of
the MPLS tunnel or an octet string of
zero length.
ifLinkUpDownTrapEnable
Default is disabled (2).
ifConnectorPresent Set to false (2).
ifHighSpeed See [RFC2863].
ifHCInOctets The 64-bit version of ifInOctets;
supported if required by the compliance
statements in [RFC2863].
ifHCOutOctets The 64-bit version of ifOutOctets;
supported if required by the compliance
statements in [RFC2863].
ifAlias The non-volatile 'alias' name for the
MPLS tunnel as specified by a network
manager.
9. Example of Tunnel Setup
This section contains an example of which MIB objects should be
modified if one would like to create a best effort, loosely routed,
unidirectional traffic engineered tunnel, which spans two hops of a
simple network. Note that these objects should be created on the
"head-end" LSR. Those objects relevant to illustrating the
relationships amongst different tables are shown here. Other objects
may be needed before conceptual row activation can happen.
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The RowStatus values shown in this section are those to be used in
the set request, typically createAndGo(4) which is used to create the
conceptual row and have its status immediately set to active. A
subsequent retrieval operation on the conceptual row will return a
different value, such as active(1). Please see [RFC2579] for a
detailed discussion on the use of RowStatus.
In mplsTunnelResourceTable:
{
mplsTunnelResourceIndex = 5,
mplsTunnelResourceMaxRate = 0,
mplsTunnelResourceMeanRate = 0,
mplsTunnelResourceMaxBurstSize = 0,
mplsTunnelResourceMeanBurstSize = 0,
mplsTunnelResourceExBurstSize = 0,
mplsTunnelResourceExBurstSize = unspecified (1),
mplsTunnelResourceWeight = 0,
-- Mandatory parameters needed to activate the row go here
mplsTunnelResourceRowStatus = createAndGo (4)
}
The next two instances of mplsTunnelHopEntry are used to denote the
hops this tunnel will take across the network.
The following denotes the beginning of the tunnel, or the first hop.
We have used the fictitious LSR identified by "192.168.100.1" as our
example head-end router.
In mplsTunnelHopTable:
{
mplsTunnelHopListIndex = 1,
mplsTunnelPathOptionIndex = 1,
mplsTunnelHopIndex = 1,
mplsTunnelHopAddrType = ipv4 (1),
mplsTunnelHopIpAddr = "192.168.100.1",
mplsTunnelHopIpPrefixLen = 32,
mplsTunnelHopType = strict (2),
mplsTunnelHopInclude = true (1),
mplsTunnelHopPathOptionName = "Here to there",
mplsTunnelHopEntryPathComp = explicit (2),
-- Mandatory parameters needed to activate the row go here
mplsTunnelHopRowStatus = createAndGo (4)
}
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The following denotes the end of the tunnel, or the last hop in our
example. We have used the fictitious LSR identified by
"192.168.101.1" as our end router.
In mplsTunnelHopTable:
{
mplsTunnelHopListIndex = 1,
mplsTunnelPathOptionIndex = 1,
mplsTunnelHopIndex = 2,
mplsTunnelHopAddrType = ipv4 (1),
mplsTunnelHopIpAddr = "192.168.101.1",
mplsTunnelHopIpPrefixLen = 32,
mplsTunnelHopType = loose (2),
mplsTunnelHopInclude = true (1),
mplsTunnelHopPathOptionName = "Here to there",
mplsTunnelHopEntryPathComp = explicit (2),
-- Mandatory parameters needed to activate the row go here
mplsTunnelHopRowStatus = createAndGo (4)
}
The following denotes the configured tunnel "head" entry:
In mplsTunnelTable:
{
mplsTunnelIndex = 1,
mplsTunnelInstance = 0,
mplsTunnelIngressLSRId = 192.168.100.1,
mplsTunnelEgressLSRId = 192.168.101.1,
mplsTunnelName = "My first tunnel",
mplsTunnelDescr = "Here to there",
mplsTunnelIsIf = true (1),
-- RowPointer MUST point to the first accessible column
mplsTunnelXCPointer = 0.0,
mplsTunnelSignallingProto = none (1),
mplsTunnelSetupPrio = 0,
mplsTunnelHoldingPrio = 0,
mplsTunnelSessionAttributes = 0,
mplsTunnelLocalProtectInUse = false (0),
-- RowPointer MUST point to the first accessible column
mplsTunnelResourcePointer = mplsTunnelResourceMaxRate.5,
mplsTunnelInstancePriority = 1,
mplsTunnelHopTableIndex = 1,
mplsTunnelIncludeAnyAffinity = 0,
mplsTunnelIncludeAllAffinity = 0,
mplsTunnelExcludeAnyAffinity = 0,
mplsTunnelPathInUse = 1,
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mplsTunnelRole = head (1),
-- Mandatory parameters needed to activate the row go here
mplsTunnelRowStatus = createAndGo (4)
}
Note that any active or signaled instances of the above tunnel would
appear with the same primary mplsTunnelIndex, but would have values
greater than 0 for mplsTunnelInstance. They would also have other
objects such as the mplsTunnelXCPointer set accordingly.
10. The Use of RowPointer
RowPointer is a textual convention used to identify a conceptual row
in a conceptual table in a MIB by pointing to the first accessible
object. In this MIB module, in mplsTunnelTable, the objects
mplsTunnelXCPointer and mplsTunnelResourcePointer are of type
RowPointer. The object mplsTunnelXCPointer points to a specific
entry in the mplsXCTable [RFC3813]. This entry in the mplsXCTable is
the associated LSP for the given MPLS tunnel entry. The object
mplsTunnelResourcePointer points to a specific entry in a traffic
parameter table. An example of such a traffic parameter table is
mplsTunnelResourceTable. It indicates a specific instance of a
traffic parameter entry that is associated with a given MPLS tunnel
entry. These RowPointer objects MUST point to the first instance of
the first accessible columnar object in the appropriate conceptual
row in order to allow the manager to find the appropriate
corresponding entry in either MPLS-LSR-STD-MIB [RFC3813] or MPLS-TE-
STD-MIB. If object mplsTunnelXCPointer returns zeroDotZero, it
implies that there is no LSP associated with that particular instance
of tunnel entry. If object mplsTunnelResourcePointer returns
zeroDotZero, it implies that there is no QoS resource associated with
that particular instance of tunnel entry.
11. MPLS Traffic Engineering MIB Definitions
MPLS-TE-STD-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
Integer32, Unsigned32, Counter32, Counter64, TimeTicks,
zeroDotZero
FROM SNMPv2-SMI -- [RFC2578]
MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
FROM SNMPv2-CONF -- [RFC2580]
TruthValue, RowStatus, RowPointer, StorageType,
TimeStamp
FROM SNMPv2-TC -- [RFC2579]
InterfaceIndexOrZero, ifGeneralInformationGroup,
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ifCounterDiscontinuityGroup
FROM IF-MIB -- [RFC2863]
mplsStdMIB, MplsBitRate, MplsBurstSize, MplsLSPID,
MplsTunnelIndex, MplsTunnelInstanceIndex,
MplsTunnelAffinity, MplsExtendedTunnelId, MplsPathIndex,
MplsPathIndexOrZero, MplsOwner, TeHopAddressType,
TeHopAddress, TeHopAddressAS, TeHopAddressUnnum
FROM MPLS-TC-STD-MIB -- [RFC3811]
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB -- [RFC3411]
IndexIntegerNextFree
FROM DIFFSERV-MIB -- [RFC3289]
InetAddressPrefixLength
FROM INET-ADDRESS-MIB -- [RFC3291]
;
mplsTeStdMIB MODULE-IDENTITY
LAST-UPDATED
"200406030000Z" -- June 3, 2004
ORGANIZATION
"Multiprotocol Label Switching (MPLS) Working Group"
CONTACT-INFO
" Cheenu Srinivasan
Bloomberg L.P.
Email: cheenu@bloomberg.net
Arun Viswanathan
Force10 Networks, Inc.
Email: arunv@force10networks.com
Thomas D. Nadeau
Cisco Systems, Inc.
Email: tnadeau@cisco.com
Comments about this document should be emailed
directly to the MPLS working group mailing list at
mpls@uu.net."
DESCRIPTION
"Copyright (C) The Internet Society (2004). The
initial version of this MIB module was published
in RFC 3812. For full legal notices see the RFC
itself or see: http://www.ietf.org/copyrights/ianamib.html
This MIB module contains managed object definitions
for MPLS Traffic Engineering (TE) as defined in:
1. Extensions to RSVP for LSP Tunnels, Awduche et
al, RFC 3209, December 2001
2. Constraint-Based LSP Setup using LDP, Jamoussi
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(Editor), RFC 3212, January 2002
3. Requirements for Traffic Engineering Over MPLS,
Awduche, D., Malcolm, J., Agogbua, J., O'Dell, M.,
and J. McManus, [RFC2702], September 1999"
-- Revision history.
REVISION
"200406030000Z" -- June 3, 2004
DESCRIPTION
"Initial version issued as part of RFC 3812."
::= { mplsStdMIB 3 }
-- Top level components of this MIB module.
-- traps
mplsTeNotifications OBJECT IDENTIFIER ::= { mplsTeStdMIB 0 }
-- tables, scalars
mplsTeScalars OBJECT IDENTIFIER ::= { mplsTeStdMIB 1 }
mplsTeObjects OBJECT IDENTIFIER ::= { mplsTeStdMIB 2 }
-- conformance
mplsTeConformance OBJECT IDENTIFIER ::= { mplsTeStdMIB 3 }
-- MPLS Tunnel scalars.
mplsTunnelConfigured OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of tunnels configured on this device. A
tunnel is considered configured if the
mplsTunnelRowStatus is active(1)."
::= { mplsTeScalars 1 }
mplsTunnelActive OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of tunnels active on this device. A
tunnel is considered active if the
mplsTunnelOperStatus is up(1)."
::= { mplsTeScalars 2 }
mplsTunnelTEDistProto OBJECT-TYPE
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SYNTAX BITS {
other (0),
ospf (1),
isis (2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The traffic engineering distribution protocol(s)
used by this LSR. Note that an LSR may support more
than one distribution protocol simultaneously."
::= { mplsTeScalars 3 }
mplsTunnelMaxHops OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum number of hops that can be specified for
a tunnel on this device."
::= { mplsTeScalars 4 }
mplsTunnelNotificationMaxRate OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This variable indicates the maximum number of
notifications issued per second. If events occur
more rapidly, the implementation may simply fail to
emit these notifications during that period, or may
queue them until an appropriate time. A value of 0
means no throttling is applied and events may be
notified at the rate at which they occur."
DEFVAL { 0 }
::= { mplsTeScalars 5 }
-- End of MPLS Tunnel scalars.
-- MPLS tunnel table.
mplsTunnelIndexNext OBJECT-TYPE
SYNTAX IndexIntegerNextFree (0..65535)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains an unused value for
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mplsTunnelIndex, or a zero to indicate
that none exist. Negative values are not allowed,
as they do not correspond to valid values of
mplsTunnelIndex.
Note that this object offers an unused value
for an mplsTunnelIndex value at the ingress
side of a tunnel. At other LSRs the value
of mplsTunnelIndex SHOULD be taken from the
value signaled by the MPLS signaling protocol.
"
::= { mplsTeObjects 1 }
mplsTunnelTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsTunnelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The mplsTunnelTable allows new MPLS tunnels to be
created between an LSR and a remote endpoint, and
existing tunnels to be reconfigured or removed.
Note that only point-to-point tunnel segments are
supported, although multipoint-to-point and point-
to-multipoint connections are supported by an LSR
acting as a cross-connect. Each MPLS tunnel can
thus have one out-segment originating at this LSR
and/or one in-segment terminating at this LSR."
::= { mplsTeObjects 2 }
mplsTunnelEntry OBJECT-TYPE
SYNTAX MplsTunnelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents an MPLS tunnel.
An entry can be created by a network administrator
or by an SNMP agent as instructed by an MPLS
signalling protocol. Whenever a new entry is
created with mplsTunnelIsIf set to true(1), then a
corresponding entry is created in ifTable as well
(see RFC 2863). The ifType of this entry is
mplsTunnel(150).
A tunnel entry needs to be uniquely identified across
a MPLS network. Indices mplsTunnelIndex and
mplsTunnelInstance uniquely identify a tunnel on
the LSR originating the tunnel. To uniquely
identify a tunnel across an MPLS network requires
Srinivasan, et al. Standards Track [Page 15]
RFC 3812 MPLS-TE-STD-MIB June 2004
index mplsTunnelIngressLSRId. The last index
mplsTunnelEgressLSRId is useful in identifying all
instances of a tunnel that terminate on the same
egress LSR."
REFERENCE
"1. RFC 2863 - The Interfaces Group MIB, McCloghrie,
K., and F. Kastenholtz, June 2000 "
INDEX { mplsTunnelIndex,
mplsTunnelInstance,
mplsTunnelIngressLSRId,
mplsTunnelEgressLSRId
}
::= { mplsTunnelTable 1 }
MplsTunnelEntry ::= SEQUENCE {
mplsTunnelIndex MplsTunnelIndex,
mplsTunnelInstance MplsTunnelInstanceIndex,
mplsTunnelIngressLSRId MplsExtendedTunnelId,
mplsTunnelEgressLSRId MplsExtendedTunnelId,
mplsTunnelName SnmpAdminString,
mplsTunnelDescr SnmpAdminString,
mplsTunnelIsIf TruthValue,
mplsTunnelIfIndex InterfaceIndexOrZero,
mplsTunnelOwner MplsOwner,
mplsTunnelRole INTEGER,
mplsTunnelXCPointer RowPointer,
mplsTunnelSignallingProto INTEGER,
mplsTunnelSetupPrio Integer32,
mplsTunnelHoldingPrio Integer32,
mplsTunnelSessionAttributes BITS,
mplsTunnelLocalProtectInUse TruthValue,
mplsTunnelResourcePointer RowPointer,
mplsTunnelPrimaryInstance MplsTunnelInstanceIndex,
mplsTunnelInstancePriority Unsigned32,
mplsTunnelHopTableIndex MplsPathIndexOrZero,
mplsTunnelPathInUse MplsPathIndexOrZero,
mplsTunnelARHopTableIndex MplsPathIndexOrZero,
mplsTunnelCHopTableIndex MplsPathIndexOrZero,
mplsTunnelIncludeAnyAffinity MplsTunnelAffinity,
mplsTunnelIncludeAllAffinity MplsTunnelAffinity,
mplsTunnelExcludeAnyAffinity MplsTunnelAffinity,
mplsTunnelTotalUpTime TimeTicks,
mplsTunnelInstanceUpTime TimeTicks,
mplsTunnelPrimaryUpTime TimeTicks,
mplsTunnelPathChanges Counter32,
mplsTunnelLastPathChange TimeTicks,
mplsTunnelCreationTime TimeStamp,
mplsTunnelStateTransitions Counter32,
Srinivasan, et al. Standards Track [Page 16]
RFC 3812 MPLS-TE-STD-MIB June 2004
mplsTunnelAdminStatus INTEGER,
mplsTunnelOperStatus INTEGER,
mplsTunnelRowStatus RowStatus,
mplsTunnelStorageType StorageType
}
mplsTunnelIndex OBJECT-TYPE
SYNTAX MplsTunnelIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Uniquely identifies a set of tunnel instances
between a pair of ingress and egress LSRs.
Managers should obtain new values for row
creation in this table by reading
mplsTunnelIndexNext. When
the MPLS signalling protocol is rsvp(2) this value
SHOULD be equal to the value signaled in the
Tunnel Id of the Session object. When the MPLS
signalling protocol is crldp(3) this value
SHOULD be equal to the value signaled in the
LSP ID."
::= { mplsTunnelEntry 1 }
mplsTunnelInstance OBJECT-TYPE
SYNTAX MplsTunnelInstanceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Uniquely identifies a particular instance of a
tunnel between a pair of ingress and egress LSRs.
It is useful to identify multiple instances of
tunnels for the purposes of backup and parallel
tunnels. When the MPLS signaling protocol is
rsvp(2) this value SHOULD be equal to the LSP Id
of the Sender Template object. When the signaling
protocol is crldp(3) there is no equivalent
signaling object."
::= { mplsTunnelEntry 2 }
mplsTunnelIngressLSRId OBJECT-TYPE
SYNTAX MplsExtendedTunnelId
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Identity of the ingress LSR associated with this
tunnel instance. When the MPLS signalling protocol
is rsvp(2) this value SHOULD be equal to the Tunnel
Srinivasan, et al. Standards Track [Page 17]
RFC 3812 MPLS-TE-STD-MIB June 2004
Sender Address in the Sender Template object and MAY
be equal to the Extended Tunnel Id field in the
SESSION object. When the MPLS signalling protocol is
crldp(3) this value SHOULD be equal to the Ingress
LSR Router ID field in the LSPID TLV object."
REFERENCE
"1. RSVP-TE: Extensions to RSVP for LSP Tunnels,
Awduche et al, RFC 3209, December 2001
2. Constraint-Based LSP Setup using LDP, Jamoussi
(Editor), RFC 3212, January 2002"
::= { mplsTunnelEntry 3 }
mplsTunnelEgressLSRId OBJECT-TYPE
SYNTAX MplsExtendedTunnelId
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Identity of the egress LSR associated with this
tunnel instance."
::= { mplsTunnelEntry 4 }
mplsTunnelName OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The canonical name assigned to the tunnel. This name
can be used to refer to the tunnel on the LSR's
console port. If mplsTunnelIsIf is set to true
then the ifName of the interface corresponding to
this tunnel should have a value equal to
mplsTunnelName. Also see the description of ifName
in RFC 2863."
REFERENCE
"RFC 2863 - The Interfaces Group MIB, McCloghrie, K.,
and F. Kastenholtz, June 2000"
DEFVAL {""}
::= { mplsTunnelEntry 5 }
mplsTunnelDescr OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A textual string containing information about the
tunnel. If there is no description this object
contains a zero length string. This object is may
not be signaled by MPLS signaling protocols,
Srinivasan, et al. Standards Track [Page 18]
RFC 3812 MPLS-TE-STD-MIB June 2004
consequentally the value of this object at transit
and egress LSRs MAY be automatically generated or
absent."
DEFVAL {""}
::= { mplsTunnelEntry 6 }
mplsTunnelIsIf OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Denotes whether or not this tunnel corresponds to an
interface represented in the interfaces group
table. Note that if this variable is set to true
then the ifName of the interface corresponding to
this tunnel should have a value equal to
mplsTunnelName. Also see the description of ifName
in RFC 2863. This object is meaningful only at the
ingress and egress LSRs."
REFERENCE
"RFC 2863 - The Interfaces Group MIB, McCloghrie, K.,
and F. Kastenholtz, June 2000"
DEFVAL { false }
::= { mplsTunnelEntry 7 }
mplsTunnelIfIndex OBJECT-TYPE
SYNTAX InterfaceIndexOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"If mplsTunnelIsIf is set to true, then this value
contains the LSR-assigned ifIndex which corresponds
to an entry in the interfaces table. Otherwise
this variable should contain the value of zero
indicating that a valid ifIndex was not assigned to
this tunnel interface."
REFERENCE
"RFC 2863 - The Interfaces Group MIB, McCloghrie, K.,
and F. Kastenholtz, June 2000"
DEFVAL { 0 }
::= { mplsTunnelEntry 8 }
mplsTunnelOwner OBJECT-TYPE
SYNTAX MplsOwner
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Denotes the entity that created and is responsible
Srinivasan, et al. Standards Track [Page 19]
RFC 3812 MPLS-TE-STD-MIB June 2004
for managing this tunnel. This column is
automatically filled by the agent on creation of a
row."
::= { mplsTunnelEntry 9 }
mplsTunnelRole OBJECT-TYPE
SYNTAX INTEGER { head(1),
transit(2),
tail(3),
headTail(4) }
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This value signifies the role that this tunnel
entry/instance represents. This value MUST be set
to head(1) at the originating point of the tunnel.
This value MUST be set to transit(2) at transit
points along the tunnel, if transit points are
supported. This value MUST be set to tail(3) at the
terminating point of the tunnel if tunnel tails are
supported.
The value headTail(4) is provided for tunnels that
begin and end on the same LSR."
DEFVAL { head }
::= { mplsTunnelEntry 10 }
mplsTunnelXCPointer OBJECT-TYPE
SYNTAX RowPointer
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This variable points to a row in the mplsXCTable.
This table identifies the segments that compose
this tunnel, their characteristics, and
relationships to each other. A value of zeroDotZero
indicates that no LSP has been associated with this
tunnel yet."
REFERENCE
"Srinivasan, C., Viswanathan, A., and T. Nadeau,
Multiprotocol Label Switching (MPLS) Label Switching
Router (LSR) Management Information Base (MIB), RFC 3813,
June 2004"
DEFVAL { zeroDotZero }
::= { mplsTunnelEntry 11 }
mplsTunnelSignallingProto OBJECT-TYPE
SYNTAX INTEGER {
Srinivasan, et al. Standards Track [Page 20]
RFC 3812 MPLS-TE-STD-MIB June 2004
none(1),
rsvp(2),
crldp(3),
other(4)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The signalling protocol, if any, used to setup this
tunnel."
DEFVAL { none }
::= { mplsTunnelEntry 12 }
mplsTunnelSetupPrio OBJECT-TYPE
SYNTAX Integer32 (0..7)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Indicates the setup priority of this tunnel."
REFERENCE
"1. RSVP-TE: Extensions to RSVP for LSP Tunnels,
Awduche et al, RFC 3209, December 2001
2. Constraint-Based LSP Setup using LDP, Jamoussi
(Editor), RFC 3212, January 2002"
DEFVAL { 0 }
::= { mplsTunnelEntry 13 }
mplsTunnelHoldingPrio OBJECT-TYPE
SYNTAX Integer32 (0..7)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Indicates the holding priority for this tunnel."
REFERENCE
"1. RSVP-TE: Extensions to RSVP for LSP Tunnels,
Awduche et al, RFC 3209, December 2001
2. Constraint-Based LSP Setup using LDP, Jamoussi
(Editor), RFC 3212, January 2002"
DEFVAL { 0 }
::= { mplsTunnelEntry 14 }
mplsTunnelSessionAttributes OBJECT-TYPE
SYNTAX BITS {
fastReroute (0),
mergingPermitted (1),
isPersistent (2),
isPinned (3),
Srinivasan, et al. Standards Track [Page 21]
RFC 3812 MPLS-TE-STD-MIB June 2004
recordRoute(4)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This bit mask indicates optional session values for
this tunnel. The following describes these bit
fields:
fastRerouteThis flag indicates that the any tunnel
hop may choose to reroute this tunnel without
tearing it down. This flag permits transit routers
to use a local repair mechanism which may result in
violation of the explicit routing of this tunnel.
When a fault is detected on an adjacent downstream
link or node, a transit router can re-route traffic
for fast service restoration.
mergingPermitted This flag permits transit routers
to merge this session with other RSVP sessions for
the purpose of reducing resource overhead on
downstream transit routers, thereby providing
better network scaling.
isPersistent Indicates whether this tunnel should
be restored automatically after a failure occurs.
isPinned This flag indicates whether the loose-
routed hops of this tunnel are to be pinned.
recordRouteThis flag indicates whether or not the
signalling protocol should remember the tunnel path
after it has been signaled."
REFERENCE
"1. RSVP-TE: Extensions to RSVP for LSP Tunnels,
Awduche et al, RFC 3209, December 2001."
::= { mplsTunnelEntry 15 }
mplsTunnelLocalProtectInUse OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Indicates that the local repair mechanism is in use
to maintain this tunnel (usually in the face of an
outage of the link it was previously routed over)."
DEFVAL { false }
::= { mplsTunnelEntry 16 }
Srinivasan, et al. Standards Track [Page 22]
RFC 3812 MPLS-TE-STD-MIB June 2004
mplsTunnelResourcePointer OBJECT-TYPE
SYNTAX RowPointer
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This variable represents a pointer to the traffic
parameter specification for this tunnel. This
value may point at an entry in the
mplsTunnelResourceEntry to indicate which
mplsTunnelResourceEntry is to be assigned to this
LSP instance. This value may optionally point at
an externally defined traffic parameter
specification table. A value of zeroDotZero
indicates best-effort treatment. By having the
same value of this object, two or more LSPs can
indicate resource sharing."
DEFVAL { zeroDotZero }
::= { mplsTunnelEntry 17 }
mplsTunnelPrimaryInstance OBJECT-TYPE
SYNTAX MplsTunnelInstanceIndex
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the instance index of the primary instance
of this tunnel. More details of the definition of
tunnel instances and the primary tunnel instance
can be found in the description of the TEXTUAL-CONVENTION
MplsTunnelInstanceIndex."
DEFVAL { 0 }
::= { mplsTunnelEntry 18 }
mplsTunnelInstancePriority OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This value indicates which priority, in descending
order, with 0 indicating the lowest priority,
within a group of tunnel instances. A group of
tunnel instances is defined as a set of LSPs with
the same mplsTunnelIndex in this table, but with a
different mplsTunnelInstance. Tunnel instance
priorities are used to denote the priority at which
a particular tunnel instance will supercede
another. Instances of tunnels containing the same
mplsTunnelInstancePriority will be used for load
sharing."
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RFC 3812 MPLS-TE-STD-MIB June 2004
DEFVAL { 0 }
::= { mplsTunnelEntry 19 }
mplsTunnelHopTableIndex OBJECT-TYPE
SYNTAX MplsPathIndexOrZero
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Index into the mplsTunnelHopTable entry that
specifies the explicit route hops for this tunnel.
This object is meaningful only at the head-end of
the tunnel."
DEFVAL { 0 }
::= { mplsTunnelEntry 20 }
mplsTunnelPathInUse OBJECT-TYPE
SYNTAX MplsPathIndexOrZero
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This value denotes the configured path that was
chosen for this tunnel. This value reflects the
secondary index into mplsTunnelHopTable. This path
may not exactly match the one in
mplsTunnelARHopTable due to the fact that some CSPF
modification may have taken place. See
mplsTunnelARHopTable for the actual path being
taken by the tunnel. A value of zero denotes that
no path is currently in use or available."
DEFVAL { 0 }
::= { mplsTunnelEntry 21 }
mplsTunnelARHopTableIndex OBJECT-TYPE
SYNTAX MplsPathIndexOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Index into the mplsTunnelARHopTable entry that
specifies the actual hops traversed by the tunnel.
This is automatically updated by the agent when the
actual hops becomes available."
DEFVAL { 0 }
::= { mplsTunnelEntry 22 }
mplsTunnelCHopTableIndex OBJECT-TYPE
SYNTAX MplsPathIndexOrZero
MAX-ACCESS read-only
STATUS current
Srinivasan, et al. Standards Track [Page 24]
RFC 3812 MPLS-TE-STD-MIB June 2004
DESCRIPTION
"Index into the mplsTunnelCHopTable entry that
specifies the computed hops traversed by the
tunnel. This is automatically updated by the agent
when computed hops become available or when
computed hops get modified."
DEFVAL { 0 }
::= { mplsTunnelEntry 23 }
mplsTunnelIncludeAnyAffinity OBJECT-TYPE
SYNTAX MplsTunnelAffinity
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A link satisfies the include-any constraint if and
only if the constraint is zero, or the link and the
constraint have a resource class in common."
REFERENCE
"1. RSVP-TE: Extensions to RSVP for LSP Tunnels,
Awduche et al, RFC 3209, December 2001."
::= { mplsTunnelEntry 24 }
mplsTunnelIncludeAllAffinity OBJECT-TYPE
SYNTAX MplsTunnelAffinity
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A link satisfies the include-all constraint if and
only if the link contains all of the administrative
groups specified in the constraint."
REFERENCE
"1. RSVP-TE: Extensions to RSVP for LSP Tunnels,
Awduche et al, RFC 3209, December 2001."
::= { mplsTunnelEntry 25 }
mplsTunnelExcludeAnyAffinity OBJECT-TYPE
SYNTAX MplsTunnelAffinity
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A link satisfies the exclude-any constraint if and
only if the link contains none of the
administrative groups specified in the constraint."
REFERENCE
"1. RSVP-TE: Extensions to RSVP for LSP Tunnels,
Awduche et al, RFC 3209, December 2001."
DEFVAL { 0 }
::= { mplsTunnelEntry 26 }
Srinivasan, et al. Standards Track [Page 25]
RFC 3812 MPLS-TE-STD-MIB June 2004
mplsTunnelTotalUpTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This value represents the aggregate up time for all
instances of this tunnel, if available. If this
value is unavailable, it MUST return a value of 0."
::= { mplsTunnelEntry 27 }
mplsTunnelInstanceUpTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This value identifies the total time that this
tunnel instance's operStatus has been Up(1)."
::= { mplsTunnelEntry 28 }
mplsTunnelPrimaryUpTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the total time the primary instance of
this tunnel has been active. The primary instance
of this tunnel is defined in
mplsTunnelPrimaryInstance."
::= { mplsTunnelEntry 29 }
mplsTunnelPathChanges OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the number of times the actual path for
this tunnel instance has changed."
::= { mplsTunnelEntry 30 }
mplsTunnelLastPathChange OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the time since the last change to the
actual path for this tunnel instance."
::= { mplsTunnelEntry 31 }
Srinivasan, et al. Standards Track [Page 26]
RFC 3812 MPLS-TE-STD-MIB June 2004
mplsTunnelCreationTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the value of SysUpTime when the first
instance of this tunnel came into existence.
That is, when the value of mplsTunnelOperStatus
was first set to up(1)."
::= { mplsTunnelEntry 32 }
mplsTunnelStateTransitions OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the number of times the state
(mplsTunnelOperStatus) of this tunnel instance has
changed."
::= { mplsTunnelEntry 33 }
mplsTunnelAdminStatus OBJECT-TYPE
SYNTAX INTEGER {
-- ready to pass packets
up(1),
down(2),
-- in some test mode
testing(3)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Indicates the desired operational status of this
tunnel."
::= { mplsTunnelEntry 34 }
mplsTunnelOperStatus OBJECT-TYPE
SYNTAX INTEGER {
-- ready to pass packets
up(1),
down(2),
-- in some test mode
testing(3),
-- status cannot be determined
unknown(4),
dormant(5),
-- some component is missing
notPresent(6),
Srinivasan, et al. Standards Track [Page 27]
RFC 3812 MPLS-TE-STD-MIB June 2004
-- down due to the state of
-- lower layer interfaces
lowerLayerDown(7)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates the actual operational status of this
tunnel, which is typically but not limited to, a
function of the state of individual segments of
this tunnel."
::= { mplsTunnelEntry 35 }
mplsTunnelRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This variable is used to create, modify, and/or
delete a row in this table. When a row in this
table is in active(1) state, no objects in that row
can be modified by the agent except
mplsTunnelAdminStatus, mplsTunnelRowStatus and
mplsTunnelStorageType."
::= { mplsTunnelEntry 36 }
mplsTunnelStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION "The storage type for this tunnel entry.
Conceptual rows having the value 'permanent'
need not allow write-access to any columnar
objects in the row."
DEFVAL { volatile }
::= { mplsTunnelEntry 37 }
-- End of mplsTunnelTable
mplsTunnelHopListIndexNext OBJECT-TYPE
SYNTAX MplsPathIndexOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains an appropriate value to be used
for mplsTunnelHopListIndex when creating entries in
the mplsTunnelHopTable. If the number of
unassigned entries is exhausted, a retrieval
Srinivasan, et al. Standards Track [Page 28]
RFC 3812 MPLS-TE-STD-MIB June 2004
operation will return a value of 0. This object
may also return a value of 0 when the LSR is unable
to accept conceptual row creation, for example, if
the mplsTunnelHopTable is implemented as read-only.
To obtain the value of mplsTunnelHopListIndex for a
new entry in the mplsTunnelHopTable, the manager
issues a management protocol retrieval operation to
obtain the current value of mplsTunnelHopIndex.
When the SET is performed to create a row in the
mplsTunnelHopTable, the Command Responder (agent)
must determine whether the value is indeed still
unused; Two Network Management Applications may
attempt to create a row (configuration entry)
simultaneously and use the same value. If it is
currently unused, the SET succeeds and the Command
Responder (agent) changes the value of this object,
according to an implementation-specific algorithm.
If the value is in use, however, the SET fails. The
Network Management Application must then re-read
this variable to obtain a new usable value."
::= { mplsTeObjects 3 }
mplsTunnelHopTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsTunnelHopEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The mplsTunnelHopTable is used to indicate the hops,
strict or loose, for an instance of an MPLS tunnel
defined in mplsTunnelTable, when it is established
via signalling, for the outgoing direction of the
tunnel. Thus at a transit LSR, this table contains
the desired path of the tunnel from this LSR
onwards. Each row in this table is indexed by
mplsTunnelHopListIndex which corresponds to a group
of hop lists or path options. Each row also has a
secondary index mplsTunnelHopIndex, which indicates
a group of hops (also known as a path option).
Finally, the third index, mplsTunnelHopIndex
indicates the specific hop information for a path
option. In case we want to specify a particular
interface on the originating LSR of an outgoing
tunnel by which we want packets to exit the LSR,
we specify this as the first hop for this tunnel in
mplsTunnelHopTable."
::= { mplsTeObjects 4 }
Srinivasan, et al. Standards Track [Page 29]
RFC 3812 MPLS-TE-STD-MIB June 2004
mplsTunnelHopEntry OBJECT-TYPE
SYNTAX MplsTunnelHopEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents a tunnel hop. An
entry is created by a network administrator for
signaled ERLSP set up by an MPLS signalling
protocol."
INDEX {
mplsTunnelHopListIndex,
mplsTunnelHopPathOptionIndex,
mplsTunnelHopIndex
}
::= { mplsTunnelHopTable 1 }
MplsTunnelHopEntry ::= SEQUENCE {
mplsTunnelHopListIndex MplsPathIndex,
mplsTunnelHopPathOptionIndex MplsPathIndex,
mplsTunnelHopIndex MplsPathIndex,
mplsTunnelHopAddrType TeHopAddressType,
mplsTunnelHopIpAddr TeHopAddress,
mplsTunnelHopIpPrefixLen InetAddressPrefixLength,
mplsTunnelHopAsNumber TeHopAddressAS,
mplsTunnelHopAddrUnnum TeHopAddressUnnum,
mplsTunnelHopLspId MplsLSPID,
mplsTunnelHopType INTEGER,
mplsTunnelHopInclude TruthValue,
mplsTunnelHopPathOptionName SnmpAdminString,
mplsTunnelHopEntryPathComp INTEGER,
mplsTunnelHopRowStatus RowStatus,
mplsTunnelHopStorageType StorageType
}
mplsTunnelHopListIndex OBJECT-TYPE
SYNTAX MplsPathIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Primary index into this table identifying a
particular explicit route object."
::= { mplsTunnelHopEntry 1 }
mplsTunnelHopPathOptionIndex OBJECT-TYPE
SYNTAX MplsPathIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
Srinivasan, et al. Standards Track [Page 30]
RFC 3812 MPLS-TE-STD-MIB June 2004
"Secondary index into this table identifying a
particular group of hops representing a particular
configured path. This is otherwise known as a path
option."
::= { mplsTunnelHopEntry 2 }
mplsTunnelHopIndex OBJECT-TYPE
SYNTAX MplsPathIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Tertiary index into this table identifying a
particular hop."
::= { mplsTunnelHopEntry 3 }
mplsTunnelHopAddrType OBJECT-TYPE
SYNTAX TeHopAddressType
MAX-ACCESS read-create
STATUS current
DESCRIPTION "The Hop Address Type of this tunnel hop.
The value of this object cannot be changed
if the value of the corresponding
mplsTunnelHopRowStatus object is 'active'.
Note that lspid(5) is a valid option only
for tunnels signaled via CRLDP.
"
DEFVAL { ipv4 }
::= { mplsTunnelHopEntry 4 }
mplsTunnelHopIpAddr OBJECT-TYPE
SYNTAX TeHopAddress
MAX-ACCESS read-create
STATUS current
DESCRIPTION "The Tunnel Hop Address for this tunnel hop.
The type of this address is determined by the
value of the corresponding mplsTunnelHopAddrType.
The value of this object cannot be changed
if the value of the corresponding
mplsTunnelHopRowStatus object is 'active'.
"
DEFVAL { '00000000'h } -- IPv4 address 0.0.0.0
::= { mplsTunnelHopEntry 5 }
mplsTunnelHopIpPrefixLen OBJECT-TYPE
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RFC 3812 MPLS-TE-STD-MIB June 2004
SYNTAX InetAddressPrefixLength
MAX-ACCESS read-create
STATUS current
DESCRIPTION "If mplsTunnelHopAddrType is set to ipv4(1) or
ipv6(2), then this value will contain an
appropriate prefix length for the IP address in
object mplsTunnelHopIpAddr. Otherwise this value
is irrelevant and should be ignored.
"
DEFVAL { 32 }
::= { mplsTunnelHopEntry 6 }
mplsTunnelHopAsNumber OBJECT-TYPE
SYNTAX TeHopAddressAS
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If mplsTunnelHopAddrType is set to asnumber(3), then
this value will contain the AS number of this hop.
Otherwise the agent should set this object to zero-
length string and the manager should ignore this."
::= { mplsTunnelHopEntry 7 }
mplsTunnelHopAddrUnnum OBJECT-TYPE
SYNTAX TeHopAddressUnnum
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If mplsTunnelHopAddrType is set to unnum(4), then
this value will contain the interface identifier of
the unnumbered interface for this hop. This object
should be used in conjunction with
mplsTunnelHopIpAddress which would contain the LSR
Router ID in this case. Otherwise the agent should
set this object to zero-length string and the
manager should ignore this."
::= { mplsTunnelHopEntry 8 }
mplsTunnelHopLspId OBJECT-TYPE
SYNTAX MplsLSPID
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If mplsTunnelHopAddrType is set to lspid(5), then
this value will contain the LSPID of a tunnel of
this hop. The present tunnel being configured is
tunneled through this hop (using label stacking).
This object is otherwise insignificant and should
Srinivasan, et al. Standards Track [Page 32]
RFC 3812 MPLS-TE-STD-MIB June 2004
contain a value of 0 to indicate this fact."
::= { mplsTunnelHopEntry 9 }
mplsTunnelHopType OBJECT-TYPE
SYNTAX INTEGER {
strict(1),
loose(2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Denotes whether this tunnel hop is routed in a
strict or loose fashion. The value of this object
has no meaning if the mplsTunnelHopInclude object
is set to 'false'."
::= { mplsTunnelHopEntry 10 }
mplsTunnelHopInclude OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If this value is set to true, then this indicates
that this hop must be included in the tunnel's
path. If this value is set to 'false', then this hop
must be avoided when calculating the path for this
tunnel. The default value of this object is 'true',
so that by default all indicated hops are included
in the CSPF path computation. If this object is set
to 'false' the value of mplsTunnelHopType should be
ignored."
DEFVAL { true }
::= { mplsTunnelHopEntry 11 }
mplsTunnelHopPathOptionName OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The description of this series of hops as they
relate to the specified path option. The
value of this object SHOULD be the same for
each hop in the series that comprises a
path option."
::= { mplsTunnelHopEntry 12 }
mplsTunnelHopEntryPathComp OBJECT-TYPE
SYNTAX INTEGER {
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RFC 3812 MPLS-TE-STD-MIB June 2004
dynamic(1), -- CSPF computed
explicit(2) -- strict hop
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"If this value is set to dynamic, then the user
should only specify the source and destination of
the path and expect that the CSPF will calculate
the remainder of the path. If this value is set to
explicit, the user should specify the entire path
for the tunnel to take. This path may contain
strict or loose hops. Each hop along a specific
path SHOULD have this object set to the same value"
::= { mplsTunnelHopEntry 13 }
mplsTunnelHopRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This variable is used to create, modify, and/or
delete a row in this table. When a row in this
table is in active(1) state, no objects in that row
can be modified by the agent except
mplsTunnelHopRowStatus and
mplsTunnelHopStorageType."
::= { mplsTunnelHopEntry 14 }
mplsTunnelHopStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this Hop entry. Conceptual
rows having the value 'permanent' need not
allow write-access to any columnar objects
in the row."
DEFVAL { volatile }
::= { mplsTunnelHopEntry 15 }
-- End of mplsTunnelHopTable
-- Begin of mplsTunnelResourceTable
mplsTunnelResourceIndexNext OBJECT-TYPE
SYNTAX Unsigned32 (0.. 2147483647)
MAX-ACCESS read-only
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RFC 3812 MPLS-TE-STD-MIB June 2004
STATUS current
DESCRIPTION
"This object contains the next appropriate value to
be used for mplsTunnelResourceIndex when creating
entries in the mplsTunnelResourceTable. If the
number of unassigned entries is exhausted, a
retrieval operation will return a value of 0. This
object may also return a value of 0 when the LSR is
unable to accept conceptual row creation, for
example, if the mplsTunnelTable is implemented as
read-only. To obtain the mplsTunnelResourceIndex
value for a new entry, the manager must first issue
a management protocol retrieval operation to obtain
the current value of this object.
When the SET is performed to create a row in the
mplsTunnelResourceTable, the Command Responder
(agent) must determine whether the value is indeed
still unused; Two Network Management Applications
may attempt to create a row (configuration entry)
simultaneously and use the same value. If it is
currently unused, the SET succeeds and the Command
Responder (agent) changes the value of this object,
according to an implementation-specific algorithm.
If the value is in use, however, the SET fails. The
Network Management Application must then re-read
this variable to obtain a new usable value."
::= { mplsTeObjects 5 }
mplsTunnelResourceTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsTunnelResourceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The mplsTunnelResourceTable allows a manager to
specify which resources are desired for an MPLS
tunnel. This table also allows several tunnels to
point to a single entry in this table, implying
that these tunnels should share resources."
::= { mplsTeObjects 6 }
mplsTunnelResourceEntry OBJECT-TYPE
SYNTAX MplsTunnelResourceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents a set of resources
for an MPLS tunnel. An entry can be created by a
Srinivasan, et al. Standards Track [Page 35]
RFC 3812 MPLS-TE-STD-MIB June 2004
network administrator or by an SNMP agent as
instructed by any MPLS signalling protocol.
An entry in this table referenced by a tunnel instance
with zero mplsTunnelInstance value indicates a
configured set of resource parameter. An entry
referenced by a tunnel instance with a non-zero
mplsTunnelInstance reflects the in-use resource
parameters for the tunnel instance which may have
been negotiated or modified by the MPLS signaling
protocols."
INDEX { mplsTunnelResourceIndex }
::= { mplsTunnelResourceTable 1 }
MplsTunnelResourceEntry ::= SEQUENCE {
mplsTunnelResourceIndex Unsigned32,
mplsTunnelResourceMaxRate MplsBitRate,
mplsTunnelResourceMeanRate MplsBitRate,
mplsTunnelResourceMaxBurstSize MplsBurstSize,
mplsTunnelResourceMeanBurstSize MplsBurstSize,
mplsTunnelResourceExBurstSize MplsBurstSize,
mplsTunnelResourceFrequency INTEGER,
mplsTunnelResourceWeight Unsigned32,
mplsTunnelResourceRowStatus RowStatus,
mplsTunnelResourceStorageType StorageType
}
mplsTunnelResourceIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..2147483647)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Uniquely identifies this row."
::= { mplsTunnelResourceEntry 1 }
mplsTunnelResourceMaxRate OBJECT-TYPE
SYNTAX MplsBitRate
UNITS "kilobits per second"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum rate in bits/second. Note that setting
mplsTunnelResourceMaxRate,
mplsTunnelResourceMeanRate, and
mplsTunnelResourceMaxBurstSize to 0 indicates best-
effort treatment."
::= { mplsTunnelResourceEntry 2 }
mplsTunnelResourceMeanRate OBJECT-TYPE
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RFC 3812 MPLS-TE-STD-MIB June 2004
SYNTAX MplsBitRate
UNITS "kilobits per second"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object is copied into an instance of
mplsTrafficParamMeanRate in the
mplsTrafficParamTable. The OID of this table entry
is then copied into the corresponding
mplsInSegmentTrafficParamPtr."
::= { mplsTunnelResourceEntry 3 }
mplsTunnelResourceMaxBurstSize OBJECT-TYPE
SYNTAX MplsBurstSize
UNITS "bytes"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum burst size in bytes."
::= { mplsTunnelResourceEntry 4 }
mplsTunnelResourceMeanBurstSize OBJECT-TYPE
SYNTAX MplsBurstSize
UNITS "bytes"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The mean burst size in bytes. The implementations
which do not implement this variable must return
a noSuchObject exception for this object and must
not allow a user to set this object."
::= { mplsTunnelResourceEntry 5 }
mplsTunnelResourceExBurstSize OBJECT-TYPE
SYNTAX MplsBurstSize
UNITS "bytes"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Excess burst size in bytes. The implementations
which do not implement this variable must return
noSuchObject exception for this object and must
not allow a user to set this value."
REFERENCE
"CR-LDP Specification, Section 4.3."
::= { mplsTunnelResourceEntry 6 }
mplsTunnelResourceFrequency OBJECT-TYPE
Srinivasan, et al. Standards Track [Page 37]
RFC 3812 MPLS-TE-STD-MIB June 2004
SYNTAX INTEGER { unspecified(1),
frequent(2),
veryFrequent(3)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The granularity of the availability of committed
rate. The implementations which do not implement
this variable must return unspecified(1) for this
value and must not allow a user to set this value."
REFERENCE
"CR-LDP Specification, Section 4.3."
::= { mplsTunnelResourceEntry 7 }
mplsTunnelResourceWeight OBJECT-TYPE
SYNTAX Unsigned32(0..255)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The relative weight for using excess bandwidth above
its committed rate. The value of 0 means that
weight is not applicable for the CR-LSP."
REFERENCE
"CR-LDP Specification, Section 4.3."
::= { mplsTunnelResourceEntry 8 }
mplsTunnelResourceRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This variable is used to create, modify, and/or
delete a row in this table. When a row in this
table is in active(1) state, no objects in that row
can be modified by the agent except
mplsTunnelResourceRowStatus and
mplsTunnelResourceStorageType."
::= { mplsTunnelResourceEntry 9 }
mplsTunnelResourceStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this Hop entry. Conceptual
rows having the value 'permanent' need not
allow write-access to any columnar objects
Srinivasan, et al. Standards Track [Page 38]
RFC 3812 MPLS-TE-STD-MIB June 2004
in the row."
DEFVAL { volatile }
::= { mplsTunnelResourceEntry 10 }
-- End mplsTunnelResourceTable
-- Tunnel Actual Route Hop table.
mplsTunnelARHopTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsTunnelARHopEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The mplsTunnelARHopTable is used to indicate the
hops for an MPLS tunnel defined in mplsTunnelTable,
as reported by the MPLS signalling protocol. Thus at
a transit LSR, this table (if the table is supported
and if the signaling protocol is recording actual
route information) contains the actual route of the
whole tunnel. If the signaling protocol is not
recording the actual route, this table MAY report
the information from the mplsTunnelHopTable or the
mplsTunnelCHopTable.
Each row in this table is indexed by
mplsTunnelARHopListIndex. Each row also has a
secondary index mplsTunnelARHopIndex, corresponding
to the next hop that this row corresponds to.
Please note that since the information necessary to
build entries within this table is not provided by
some MPLS signalling protocols, implementation of
this table is optional. Furthermore, since the
information in this table is actually provided by
the MPLS signalling protocol after the path has
been set-up, the entries in this table are provided
only for observation, and hence, all variables in
this table are accessible exclusively as read-
only.
Note also that the contents of this table may change
while it is being read because of re-routing
activities. A network administrator may verify that
the actual route read is consistent by reference to
the mplsTunnelLastPathChange object."
::= { mplsTeObjects 7 }
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RFC 3812 MPLS-TE-STD-MIB June 2004
mplsTunnelARHopEntry OBJECT-TYPE
SYNTAX MplsTunnelARHopEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents a tunnel hop. An
entry is created by the agent for signaled ERLSP
set up by an MPLS signalling protocol."
INDEX { mplsTunnelARHopListIndex, mplsTunnelARHopIndex }
::= { mplsTunnelARHopTable 1 }
MplsTunnelARHopEntry ::= SEQUENCE {
mplsTunnelARHopListIndex MplsPathIndex,
mplsTunnelARHopIndex MplsPathIndex,
mplsTunnelARHopAddrType TeHopAddressType,
mplsTunnelARHopIpAddr TeHopAddress,
mplsTunnelARHopAddrUnnum TeHopAddressUnnum,
mplsTunnelARHopLspId MplsLSPID
}
mplsTunnelARHopListIndex OBJECT-TYPE
SYNTAX MplsPathIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Primary index into this table identifying a
particular recorded hop list."
::= { mplsTunnelARHopEntry 1 }
mplsTunnelARHopIndex OBJECT-TYPE
SYNTAX MplsPathIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Secondary index into this table identifying the
particular hop."
::= { mplsTunnelARHopEntry 2 }
mplsTunnelARHopAddrType OBJECT-TYPE
SYNTAX TeHopAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Hop Address Type of this tunnel hop.
Note that lspid(5) is a valid option only
for tunnels signaled via CRLDP."
DEFVAL { ipv4 }
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RFC 3812 MPLS-TE-STD-MIB June 2004
::= { mplsTunnelARHopEntry 3 }
mplsTunnelARHopIpAddr OBJECT-TYPE
SYNTAX TeHopAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Tunnel Hop Address for this tunnel hop.
The type of this address is determined by the
value of the corresponding mplsTunnelARHopAddrType.
If mplsTunnelARHopAddrType is set to unnum(4),
then this value contains the LSR Router ID of the
unnumbered interface. Otherwise the agent SHOULD
set this object to the zero-length string and the
manager should ignore this object."
DEFVAL { '00000000'h } -- IPv4 address 0.0.0.0
::= { mplsTunnelARHopEntry 4 }
mplsTunnelARHopAddrUnnum OBJECT-TYPE
SYNTAX TeHopAddressUnnum
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"If mplsTunnelARHopAddrType is set to unnum(4), then
this value will contain the interface identifier of
the unnumbered interface for this hop. This object
should be used in conjunction with
mplsTunnelARHopIpAddr which would contain the LSR
Router ID in this case. Otherwise the agent should
set this object to zero-length string and the
manager should ignore this."
::= { mplsTunnelARHopEntry 5 }
mplsTunnelARHopLspId OBJECT-TYPE
SYNTAX MplsLSPID
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"If mplsTunnelARHopAddrType is set to lspid(5), then
this value will contain the LSP ID of this hop.
This object is otherwise insignificant and should
contain a value of 0 to indicate this fact."
::= { mplsTunnelARHopEntry 6 }
-- End of mplsTunnelARHopTable
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RFC 3812 MPLS-TE-STD-MIB June 2004
-- Tunnel Computed Hop table.
mplsTunnelCHopTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsTunnelCHopEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The mplsTunnelCHopTable is used to indicate the
hops, strict or loose, for an MPLS tunnel defined
in mplsTunnelTable, as computed by a constraint-
based routing protocol, based on the
mplsTunnelHopTable for the outgoing direction of
the tunnel. Thus at a transit LSR, this table (if
the table is supported) MAY contain the path
computed by the CSPF engine on (or on behalf of)
this LSR. Each row in this table is indexed by
mplsTunnelCHopListIndex. Each row also has a
secondary index mplsTunnelCHopIndex, corresponding
to the next hop that this row corresponds to. In
case we want to specify a particular interface on
the originating LSR of an outgoing tunnel by which
we want packets to exit the LSR, we specify this as
the first hop for this tunnel in
mplsTunnelCHopTable.
Please note that since the information necessary to
build entries within this table may not be
supported by some LSRs, implementation of this
table is optional. Furthermore, since the
information in this table describes the path
computed by the CSPF engine the entries in this
table are read-only."
::= { mplsTeObjects 8 }
mplsTunnelCHopEntry OBJECT-TYPE
SYNTAX MplsTunnelCHopEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents a tunnel hop. An
entry in this table is created by a path
computation engine using CSPF techniques applied to
the information collected by routing protocols and
the hops specified in the corresponding
mplsTunnelHopTable."
INDEX { mplsTunnelCHopListIndex, mplsTunnelCHopIndex }
::= { mplsTunnelCHopTable 1 }
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RFC 3812 MPLS-TE-STD-MIB June 2004
MplsTunnelCHopEntry ::= SEQUENCE {
mplsTunnelCHopListIndex MplsPathIndex,
mplsTunnelCHopIndex MplsPathIndex,
mplsTunnelCHopAddrType TeHopAddressType,
mplsTunnelCHopIpAddr TeHopAddress,
mplsTunnelCHopIpPrefixLen InetAddressPrefixLength,
mplsTunnelCHopAsNumber TeHopAddressAS,
mplsTunnelCHopAddrUnnum TeHopAddressUnnum,
mplsTunnelCHopLspId MplsLSPID,
mplsTunnelCHopType INTEGER
}
mplsTunnelCHopListIndex OBJECT-TYPE
SYNTAX MplsPathIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Primary index into this table identifying a
particular computed hop list."
::= { mplsTunnelCHopEntry 1 }
mplsTunnelCHopIndex OBJECT-TYPE
SYNTAX MplsPathIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Secondary index into this table identifying the
particular hop."
::= { mplsTunnelCHopEntry 2 }
mplsTunnelCHopAddrType OBJECT-TYPE
SYNTAX TeHopAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Hop Address Type of this tunnel hop.
Note that lspid(5) is a valid option only
for tunnels signaled via CRLDP."
DEFVAL { ipv4 }
::= { mplsTunnelCHopEntry 3 }
mplsTunnelCHopIpAddr OBJECT-TYPE
SYNTAX TeHopAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Tunnel Hop Address for this tunnel hop.
Srinivasan, et al. Standards Track [Page 43]
RFC 3812 MPLS-TE-STD-MIB June 2004
The type of this address is determined by the
value of the corresponding mplsTunnelCHopAddrType.
If mplsTunnelCHopAddrType is set to unnum(4), then
this value will contain the LSR Router ID of the
unnumbered interface. Otherwise the agent should
set this object to the zero-length string and the
manager SHOULD ignore this object."
DEFVAL { '00000000'h } -- IPv4 address 0.0.0.0
::= { mplsTunnelCHopEntry 4 }
mplsTunnelCHopIpPrefixLen OBJECT-TYPE
SYNTAX InetAddressPrefixLength
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"If mplsTunnelCHopAddrType is set to ipv4(1) or
ipv6(2), then this value will contain an
appropriate prefix length for the IP address in
object mplsTunnelCHopIpAddr. Otherwise this value
is irrelevant and should be ignored.
"
DEFVAL { 32 }
::= { mplsTunnelCHopEntry 5 }
mplsTunnelCHopAsNumber OBJECT-TYPE
SYNTAX TeHopAddressAS
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"If mplsTunnelCHopAddrType is set to asnumber(3),
then this value will contain the AS number of this
hop. Otherwise the agent should set this object to
zero-length string and the manager should ignore
this."
::= { mplsTunnelCHopEntry 6 }
mplsTunnelCHopAddrUnnum OBJECT-TYPE
SYNTAX TeHopAddressUnnum
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"If mplsTunnelCHopAddrType is set to unnum(4), then
this value will contain the unnumbered interface
identifier of this hop. This object should be used
in conjunction with mplsTunnelCHopIpAddr which
would contain the LSR Router ID in this case.
Srinivasan, et al. Standards Track [Page 44]
RFC 3812 MPLS-TE-STD-MIB June 2004
Otherwise the agent should set this object to zero-
length string and the manager should ignore this."
::= { mplsTunnelCHopEntry 7 }
mplsTunnelCHopLspId OBJECT-TYPE
SYNTAX MplsLSPID
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"If mplsTunnelCHopAddrType is set to lspid(5), then
this value will contain the LSP ID of this hop.
This object is otherwise insignificant and should
contain a value of 0 to indicate this fact."
::= { mplsTunnelCHopEntry 8 }
mplsTunnelCHopType OBJECT-TYPE
SYNTAX INTEGER { strict(1),
loose(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Denotes whether this is tunnel hop is routed in a
strict or loose fashion."
::= { mplsTunnelCHopEntry 9 }
-- End of mplsTunnelCHopTable
-- MPLS Tunnel Performance Table.
mplsTunnelPerfTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsTunnelPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table provides per-tunnel instance MPLS
performance information."
::= { mplsTeObjects 9 }
mplsTunnelPerfEntry OBJECT-TYPE
SYNTAX MplsTunnelPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table is created by the LSR for
every tunnel. Its is an extension to
mplsTunnelEntry."
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RFC 3812 MPLS-TE-STD-MIB June 2004
AUGMENTS { mplsTunnelEntry }
::= { mplsTunnelPerfTable 1 }
MplsTunnelPerfEntry ::= SEQUENCE {
mplsTunnelPerfPackets Counter32,
mplsTunnelPerfHCPackets Counter64,
mplsTunnelPerfErrors Counter32,
mplsTunnelPerfBytes Counter32,
mplsTunnelPerfHCBytes Counter64
}
mplsTunnelPerfPackets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of packets forwarded by the tunnel.
This object should represents the 32-bit
value of the least significant part of the
64-bit value if both mplsTunnelPerfHCPackets
is returned."
::= { mplsTunnelPerfEntry 1 }
mplsTunnelPerfHCPackets OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"High capacity counter for number of packets
forwarded by the tunnel. "
::= { mplsTunnelPerfEntry 2 }
mplsTunnelPerfErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of packets dropped because of errors or for
other reasons."
::= { mplsTunnelPerfEntry 3 }
mplsTunnelPerfBytes OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of bytes forwarded by the tunnel.
This object should represents the 32-bit
Srinivasan, et al. Standards Track [Page 46]
RFC 3812 MPLS-TE-STD-MIB June 2004
value of the least significant part of the
64-bit value if both mplsTunnelPerfHCBytes
is returned."
::= { mplsTunnelPerfEntry 4 }
mplsTunnelPerfHCBytes OBJECT-TYPE
SYNTAX Counter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"High capacity counter for number of bytes forwarded
by the tunnel."
::= { mplsTunnelPerfEntry 5 }
-- End of mplsTunnelPerfTable
-- CR-LDP Tunnel Resource Table
mplsTunnelCRLDPResTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsTunnelCRLDPResEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The mplsTunnelCRLDPResTable allows a manager to
specify which CR-LDP-specific resources are desired
for an MPLS tunnel if that tunnel is signaled using
CR-LDP. Note that these attributes are in addition
to those specified in mplsTunnelResourceTable. This
table also allows several tunnels to point to a
single entry in this table, implying that these
tunnels should share resources."
::= { mplsTeObjects 10 }
mplsTunnelCRLDPResEntry OBJECT-TYPE
SYNTAX MplsTunnelCRLDPResEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents a set of resources
for an MPLS tunnel established using CRLDP
(mplsTunnelSignallingProto equal to crldp (3)). An
entry can be created by a network administrator or
by an SNMP agent as instructed by any MPLS
signalling protocol."
INDEX { mplsTunnelResourceIndex }
::= { mplsTunnelCRLDPResTable 1 }
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RFC 3812 MPLS-TE-STD-MIB June 2004
MplsTunnelCRLDPResEntry ::= SEQUENCE {
mplsTunnelCRLDPResMeanBurstSize MplsBurstSize,
mplsTunnelCRLDPResExBurstSize MplsBurstSize,
mplsTunnelCRLDPResFrequency INTEGER,
mplsTunnelCRLDPResWeight Unsigned32,
mplsTunnelCRLDPResFlags Unsigned32,
mplsTunnelCRLDPResRowStatus RowStatus,
mplsTunnelCRLDPResStorageType StorageType
}
mplsTunnelCRLDPResMeanBurstSize OBJECT-TYPE
SYNTAX MplsBurstSize
UNITS "bytes"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The mean burst size in bytes."
::= { mplsTunnelCRLDPResEntry 1 }
mplsTunnelCRLDPResExBurstSize OBJECT-TYPE
SYNTAX MplsBurstSize
UNITS "bytes"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Excess burst size in bytes."
REFERENCE
"CR-LDP Specification, Section 4.3."
::= { mplsTunnelCRLDPResEntry 2 }
mplsTunnelCRLDPResFrequency OBJECT-TYPE
SYNTAX INTEGER {
unspecified(1),
frequent(2),
veryFrequent(3)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The granularity of the availability of committed
rate."
REFERENCE
"CR-LDP Specification, Section 4.3."
::= { mplsTunnelCRLDPResEntry 3 }
mplsTunnelCRLDPResWeight OBJECT-TYPE
SYNTAX Unsigned32(0..255)
MAX-ACCESS read-create
Srinivasan, et al. Standards Track [Page 48]
RFC 3812 MPLS-TE-STD-MIB June 2004
STATUS current
DESCRIPTION
"The relative weight for using excess bandwidth above
its committed rate. The value of 0 means that
weight is not applicable for the CR-LSP."
REFERENCE
"CR-LDP Specification, Section 4.3."
DEFVAL { 0 }
::= { mplsTunnelCRLDPResEntry 4 }
mplsTunnelCRLDPResFlags OBJECT-TYPE
SYNTAX Unsigned32 (0..63)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The value of the 1 byte Flags conveyed as part of
the traffic parameters during the establishment of
the CRLSP. The bits in this object are to be
interpreted as follows.
+--+--+--+--+--+--+--+--+
| Res |F6|F5|F4|F3|F2|F1|
+--+--+--+--+--+--+--+--+
Res - These bits are reserved. Zero on transmission.
Ignored on receipt.
F1 - Corresponds to the PDR.
F2 - Corresponds to the PBS.
F3 - Corresponds to the CDR.
F4 - Corresponds to the CBS.
F5 - Corresponds to the EBS.
F6 - Corresponds to the Weight.
Each flag if is a Negotiable Flag corresponding to a
Traffic Parameter. The Negotiable Flag value zero
denotes Not Negotiable and value one denotes
Negotiable."
REFERENCE
"1. Section 4.3, Constraint-Based LSP Setup using
LDP, Jamoussi (Editor), RFC 3212, January 2002"
DEFVAL { 0 }
::= { mplsTunnelCRLDPResEntry 5 }
mplsTunnelCRLDPResRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
Srinivasan, et al. Standards Track [Page 49]
RFC 3812 MPLS-TE-STD-MIB June 2004
"This variable is used to create, modify, and/or
delete a row in this table. When a row in this
table is in active(1) state, no objects in that row
can be modified by the agent except
mplsTunnelCRLDPResRowStatus and
mplsTunnelCRLDPResStorageType."
::= { mplsTunnelCRLDPResEntry 6 }
mplsTunnelCRLDPResStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this CR-LDP Resource entry.
Conceptual rows having the value 'permanent'
need not allow write-access to any columnar
objects in the row."
DEFVAL { volatile }
::= { mplsTunnelCRLDPResEntry 7 }
-- Notifications.
mplsTunnelNotificationEnable OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"If this object is true, then it enables the
generation of mplsTunnelUp and mplsTunnelDown
traps, otherwise these traps are not emitted."
DEFVAL { false }
::= { mplsTeObjects 11 }
mplsTunnelUp NOTIFICATION-TYPE
OBJECTS {
mplsTunnelAdminStatus,
mplsTunnelOperStatus
}
STATUS current
DESCRIPTION
"This notification is generated when a
mplsTunnelOperStatus object for one of the
configured tunnels is about to leave the down state
and transition into some other state (but not into
the notPresent state). This other state is
indicated by the included value of
mplsTunnelOperStatus."
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RFC 3812 MPLS-TE-STD-MIB June 2004
::= { mplsTeNotifications 1 }
mplsTunnelDown NOTIFICATION-TYPE
OBJECTS {
mplsTunnelAdminStatus,
mplsTunnelOperStatus
}
STATUS current
DESCRIPTION
"This notification is generated when a
mplsTunnelOperStatus object for one of the
configured tunnels is about to enter the down state
from some other state (but not from the notPresent
state). This other state is indicated by the
included value of mplsTunnelOperStatus."
::= { mplsTeNotifications 2 }
mplsTunnelRerouted NOTIFICATION-TYPE
OBJECTS {
mplsTunnelAdminStatus,
mplsTunnelOperStatus
}
STATUS current
DESCRIPTION
"This notification is generated when a tunnel is
rerouted. If the mplsTunnelARHopTable is used, then
this tunnel instance's entry in the
mplsTunnelARHopTable MAY contain the new path for
this tunnel some time after this trap is issued by
the agent."
::= { mplsTeNotifications 3 }
mplsTunnelReoptimized NOTIFICATION-TYPE
OBJECTS {
mplsTunnelAdminStatus,
mplsTunnelOperStatus
}
STATUS current
DESCRIPTION
"This notification is generated when a tunnel is
reoptimized. If the mplsTunnelARHopTable is used,
then this tunnel instance's entry in the
mplsTunnelARHopTable MAY contain the new path for
this tunnel some time after this trap is issued by
the agent."
::= { mplsTeNotifications 4 }
-- End of notifications.
Srinivasan, et al. Standards Track [Page 51]
RFC 3812 MPLS-TE-STD-MIB June 2004
-- Module compliance.
mplsTeGroups
OBJECT IDENTIFIER ::= { mplsTeConformance 1 }
mplsTeCompliances
OBJECT IDENTIFIER ::= { mplsTeConformance 2 }
-- Compliance requirement for fully compliant implementations.
mplsTeModuleFullCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"Compliance statement for agents that provide full
support the MPLS-TE-STD-MIB module."
MODULE IF-MIB -- The Interfaces Group MIB, RFC 2863.
MANDATORY-GROUPS {
ifGeneralInformationGroup,
ifCounterDiscontinuityGroup
}
MODULE -- this module
-- The mandatory group has to be implemented by all
-- LSRs that originate/terminate ESLSPs/tunnels.
-- In addition, depending on the type of tunnels
-- supported, other groups become mandatory as
-- explained below.
MANDATORY-GROUPS {
mplsTunnelGroup,
mplsTunnelScalarGroup
}
GROUP mplsTunnelManualGroup
DESCRIPTION
"This group is mandatory for devices which support
manual configuration of tunnels."
GROUP mplsTunnelSignaledGroup
DESCRIPTION
"This group is mandatory for devices which support
signaled tunnel set up."
GROUP mplsTunnelIsNotIntfcGroup
DESCRIPTION
"This group is mandatory for devices which support
Srinivasan, et al. Standards Track [Page 52]
RFC 3812 MPLS-TE-STD-MIB June 2004
tunnels that are not interfaces."
GROUP mplsTunnelIsIntfcGroup
DESCRIPTION
"This group is mandatory for devices which support
tunnels that are interfaces."
GROUP mplsTunnelCRLDPResOptionalGroup
DESCRIPTION
"Objects in this group are required by
implementations supporting the CR-LDP protocol for
signalling of TE tunnels."
GROUP mplsTeNotificationGroup
DESCRIPTION "This group is mandatory for those implementations
which can implement the notifications
contained in this group."
OBJECT mplsTunnelRowStatus
SYNTAX RowStatus { active(1), notInService(2) }
WRITE-SYNTAX RowStatus { active(1), notInService(2),
createAndGo(4), destroy(6)
}
DESCRIPTION "Support for createAndWait and notReady is not
required."
OBJECT mplsTunnelHopRowStatus
SYNTAX RowStatus { active(1), notInService(2) }
WRITE-SYNTAX RowStatus { active(1), notInService(2),
createAndGo(4), destroy(6)
}
DESCRIPTION "Support for createAndWait and notReady is not
required."
OBJECT mplsTunnelCRLDPResRowStatus
SYNTAX RowStatus { active(1), notInService(2) }
WRITE-SYNTAX RowStatus { active(1), notInService(2),
createAndGo(4), destroy(6)
}
DESCRIPTION "Support for createAndWait and notReady is
not required."
::= { mplsTeCompliances 1 }
-- Compliance requirement for read-only implementations.
mplsTeModuleReadOnlyCompliance MODULE-COMPLIANCE
STATUS current
Srinivasan, et al. Standards Track [Page 53]
RFC 3812 MPLS-TE-STD-MIB June 2004
DESCRIPTION
"Compliance requirement for implementations that only
provide read-only support for MPLS-TE-STD-MIB.
Such devices can then be monitored but cannot be
configured using this MIB modules."
MODULE -- this module
-- mplsTunnelTable
MANDATORY-GROUPS {
mplsTunnelGroup,
mplsTunnelScalarGroup
}
GROUP mplsTunnelManualGroup
DESCRIPTION
"This group is mandatory for devices which support
manual configuration of tunnels."
GROUP mplsTunnelSignaledGroup
DESCRIPTION
"This group is mandatory for devices which support
signaled tunnel set up."
GROUP mplsTunnelIsNotIntfcGroup
DESCRIPTION
"This group is mandatory for devices which support
tunnels that are not interfaces."
GROUP mplsTunnelIsIntfcGroup
DESCRIPTION
"This group is mandatory for devices which support
tunnels that are interfaces."
GROUP mplsTunnelCRLDPResOptionalGroup
DESCRIPTION
"Objects in this group are required by
implementations supporting the CR-LDP protocol for
signalling of TE tunnels."
GROUP mplsTeNotificationGroup
DESCRIPTION "This group is mandatory for those implementations
which can implement the notifications
contained in this group."
-- mplsTunnelTable
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RFC 3812 MPLS-TE-STD-MIB June 2004
OBJECT mplsTunnelName
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelDescr
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelIsIf
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelIfIndex
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelXCPointer
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelSignallingProto
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelSetupPrio
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelHoldingPrio
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelSessionAttributes
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelLocalProtectInUse
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
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RFC 3812 MPLS-TE-STD-MIB June 2004
OBJECT mplsTunnelResourcePointer
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelInstancePriority
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelHopTableIndex
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelIncludeAnyAffinity
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelIncludeAllAffinity
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelExcludeAnyAffinity
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelPathInUse
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelRole
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelAdminStatus
SYNTAX INTEGER { up (1), down (2) }
MIN-ACCESS read-only
DESCRIPTION
"Only up and down states must be supported. Write
access is not required."
OBJECT mplsTunnelRowStatus
Srinivasan, et al. Standards Track [Page 56]
RFC 3812 MPLS-TE-STD-MIB June 2004
SYNTAX RowStatus { active(1) }
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
-- mplsTunnelHopTable
OBJECT mplsTunnelHopAddrType
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelHopIpAddr
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelHopIpPrefixLen
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelHopAddrUnnum
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelHopAsNumber
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelHopLspId
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelHopType
SYNTAX INTEGER { strict(1) }
MIN-ACCESS read-only
DESCRIPTION
"loose(2) need not be supported. Write access is
not required."
OBJECT mplsTunnelHopInclude
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelHopPathOptionName
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
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RFC 3812 MPLS-TE-STD-MIB June 2004
OBJECT mplsTunnelHopEntryPathComp
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelHopRowStatus
SYNTAX RowStatus { active(1) }
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelHopStorageType
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
-- mplsTunnelResourceTable
OBJECT mplsTunnelResourceMaxRate
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelResourceMeanRate
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelResourceMaxBurstSize
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelResourceMeanBurstSize
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelResourceExBurstSize
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT mplsTunnelResourceFrequency
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelResourceWeight
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelResourceRowStatus
SYNTAX RowStatus { active(1) }
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
Srinivasan, et al. Standards Track [Page 58]
RFC 3812 MPLS-TE-STD-MIB June 2004
OBJECT mplsTunnelResourceStorageType
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
-- mplsTunnelCRLDPResTable
OBJECT mplsTunnelCRLDPResMeanBurstSize
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelCRLDPResExBurstSize
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelCRLDPResFrequency
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelCRLDPResWeight
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelCRLDPResFlags
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelCRLDPResRowStatus
SYNTAX RowStatus { active(1) }
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
OBJECT mplsTunnelCRLDPResStorageType
MIN-ACCESS read-only
DESCRIPTION "Write access is not required."
::= { mplsTeCompliances 2 }
-- Units of conformance.
mplsTunnelGroup OBJECT-GROUP
OBJECTS {
mplsTunnelIndexNext,
mplsTunnelName,
mplsTunnelDescr,
mplsTunnelOwner,
mplsTunnelXCPointer,
mplsTunnelIfIndex,
Srinivasan, et al. Standards Track [Page 59]
RFC 3812 MPLS-TE-STD-MIB June 2004
mplsTunnelHopTableIndex,
mplsTunnelARHopTableIndex,
mplsTunnelCHopTableIndex,
mplsTunnelAdminStatus,
mplsTunnelOperStatus,
mplsTunnelRowStatus,
mplsTunnelNotificationEnable,
mplsTunnelStorageType,
mplsTunnelConfigured,
mplsTunnelActive,
mplsTunnelPrimaryInstance,
mplsTunnelPrimaryUpTime,
mplsTunnelPathChanges,
mplsTunnelLastPathChange,
mplsTunnelCreationTime,
mplsTunnelStateTransitions,
mplsTunnelIncludeAnyAffinity,
mplsTunnelIncludeAllAffinity,
mplsTunnelExcludeAnyAffinity,
mplsTunnelPerfPackets,
mplsTunnelPerfHCPackets,
mplsTunnelPerfErrors,
mplsTunnelPerfBytes,
mplsTunnelPerfHCBytes,
mplsTunnelResourcePointer,
mplsTunnelInstancePriority,
mplsTunnelPathInUse,
mplsTunnelRole,
mplsTunnelTotalUpTime,
mplsTunnelInstanceUpTime,
mplsTunnelResourceIndexNext,
mplsTunnelResourceMaxRate,
mplsTunnelResourceMeanRate,
mplsTunnelResourceMaxBurstSize,
mplsTunnelResourceMeanBurstSize,
mplsTunnelResourceExBurstSize,
mplsTunnelResourceFrequency,
mplsTunnelResourceWeight,
mplsTunnelResourceRowStatus,
mplsTunnelResourceStorageType,
mplsTunnelARHopAddrType,
mplsTunnelARHopIpAddr,
mplsTunnelARHopAddrUnnum,
mplsTunnelARHopLspId,
mplsTunnelCHopAddrType,
mplsTunnelCHopIpAddr,
mplsTunnelCHopIpPrefixLen,
mplsTunnelCHopAsNumber,
Srinivasan, et al. Standards Track [Page 60]
RFC 3812 MPLS-TE-STD-MIB June 2004
mplsTunnelCHopAddrUnnum,
mplsTunnelCHopLspId,
mplsTunnelCHopType
}
STATUS current
DESCRIPTION
"Necessary, but not sufficient, set of objects to
implement tunnels. In addition, depending on the
type of the tunnels supported (for example,
manually configured or signaled, persistent or non-
persistent, etc.), the following other groups
defined below are mandatory: mplsTunnelManualGroup
and/or mplsTunnelSignaledGroup,
mplsTunnelIsNotIntfcGroup and/or
mplsTunnelIsIntfcGroup."
::= { mplsTeGroups 1 }
mplsTunnelManualGroup OBJECT-GROUP
OBJECTS { mplsTunnelSignallingProto }
STATUS current
DESCRIPTION
"Object(s) needed to implement manually configured
tunnels."
::= { mplsTeGroups 2 }
mplsTunnelSignaledGroup OBJECT-GROUP
OBJECTS {
mplsTunnelSetupPrio,
mplsTunnelHoldingPrio,
mplsTunnelSignallingProto,
mplsTunnelLocalProtectInUse,
mplsTunnelSessionAttributes,
mplsTunnelHopListIndexNext,
mplsTunnelHopAddrType,
mplsTunnelHopIpAddr,
mplsTunnelHopIpPrefixLen,
mplsTunnelHopAddrUnnum,
mplsTunnelHopAsNumber,
mplsTunnelHopLspId,
mplsTunnelHopType,
mplsTunnelHopInclude,
mplsTunnelHopPathOptionName,
mplsTunnelHopEntryPathComp,
mplsTunnelHopRowStatus,
mplsTunnelHopStorageType
}
STATUS current
DESCRIPTION
Srinivasan, et al. Standards Track [Page 61]
RFC 3812 MPLS-TE-STD-MIB June 2004
"Objects needed to implement signaled tunnels."
::= { mplsTeGroups 3 }
mplsTunnelScalarGroup OBJECT-GROUP
OBJECTS {
mplsTunnelConfigured,
mplsTunnelActive,
mplsTunnelTEDistProto,
mplsTunnelMaxHops,
mplsTunnelNotificationMaxRate
}
STATUS current
DESCRIPTION
"Scalar object needed to implement MPLS tunnels."
::= { mplsTeGroups 4 }
mplsTunnelIsIntfcGroup OBJECT-GROUP
OBJECTS { mplsTunnelIsIf }
STATUS current
DESCRIPTION
"Objects needed to implement tunnels that are
interfaces."
::= { mplsTeGroups 5 }
mplsTunnelIsNotIntfcGroup OBJECT-GROUP
OBJECTS { mplsTunnelIsIf }
STATUS current
DESCRIPTION
"Objects needed to implement tunnels that are not
interfaces."
::= { mplsTeGroups 6 }
mplsTunnelCRLDPResOptionalGroup OBJECT-GROUP
OBJECTS {
mplsTunnelCRLDPResMeanBurstSize,
mplsTunnelCRLDPResExBurstSize,
mplsTunnelCRLDPResFrequency,
mplsTunnelCRLDPResWeight,
mplsTunnelCRLDPResFlags,
mplsTunnelCRLDPResRowStatus,
mplsTunnelCRLDPResStorageType
}
STATUS current
DESCRIPTION
"Set of objects implemented for resources applicable
for tunnels signaled using CR-LDP."
::= { mplsTeGroups 7 }
Srinivasan, et al. Standards Track [Page 62]
RFC 3812 MPLS-TE-STD-MIB June 2004
mplsTeNotificationGroup NOTIFICATION-GROUP
NOTIFICATIONS {
mplsTunnelUp,
mplsTunnelDown,
mplsTunnelRerouted,
mplsTunnelReoptimized
}
STATUS current
DESCRIPTION
"Set of notifications implemented in this module.
None is mandatory."
::= { mplsTeGroups 8 }
END
12. Security Considerations
It is clear that this MIB module is potentially useful for the
monitoring of MPLS TE tunnels. This MIB module can also be used for
the configuration of certain objects, and anything that can be
configured can be incorrectly configured, with potentially disastrous
results.
There are a number of management objects defined in this MIB module
with a MAX-ACCESS clause of read-write and/or read-create. Such
objects may be considered sensitive or vulnerable in some network
environments. The support for SET operations in a non-secure
environment without proper protection can have a negative effect on
network operations. These are the tables and objects and their
sensitivity/vulnerability:
- the mplsTunnelTable, mplsTunnelHopTable, mplsTunnelResourceTable,
and mplsTunnelCRLDPResTable collectively contain objects to
provision MPLS tunnels, tunnel hops, and tunnel resources.
Unauthorized access to objects in these tables, could result in
disruption of traffic on the network. This is especially true if
a tunnel has been established. The use of stronger mechanisms,
such as SNMPv3 security, should be considered where possible.
Specifically, SNMPv3 VACM and USM MUST be used with any v3 agent
which implements this MIB. Administrators should consider whether
read access to these objects should be allowed, since read access
may be undesirable under certain circumstances.
Some of the readable objects in this MIB module (i.e., objects with a
MAX-ACCESS other than not-accessible) may be considered sensitive or
vulnerable in some network environments. It is thus important to
control even GET and/or NOTIFY access to these objects and possibly
Srinivasan, et al. Standards Track [Page 63]
RFC 3812 MPLS-TE-STD-MIB June 2004
to even encrypt the values of these objects when sending them over
the network via SNMP. These are the tables and objects and their
sensitivity/vulnerability:
- the mplsTunnelTable, mplsTunnelHopTable, mplsTunnelResourceTable,
mplsTunnelARHopTable, mplsTunnelCHopTable, mplsTunnelPerfTable,
and mplsTunnelCRLDPResTable collectively show the MPLS-TE tunnel
network topology and its performance characteristics. If an
Administrator does not want to reveal this information, then these
tables should be considered sensitive/vulnerable.
SNMP versions prior to SNMPv3 did not include adequate security.
Even if the network itself is secure (for example by using IPSec),
even then, there is no control as to who on the secure network is
allowed to access and GET/SET (read/change/create/delete) the objects
in this MIB module.
It is RECOMMENDED that implementers consider the security features as
provided by the SNMPv3 framework (see [RFC3410], section 8),
including full support for the SNMPv3 cryptographic mechanisms (for
authentication and privacy).
Further, deployment of SNMP versions prior to SNMPv3 is NOT
RECOMMENDED. Instead, it is RECOMMENDED that SNMPv3 be deployed and
cryptographic security enabled. It is then a customer/operator
responsibility to ensure that the SNMP entity giving access to an
instance of this MIB module is properly configured to give access to
only those principals (users) that have legitimate rights to those
objects.
13. Acknowledgments
We wish to thank Adrian Farrel, Bert Wijnen, Eric Gray, Joan
Cucchiara, Patrick Kerharo, Paul Langille, Marcus Brunner, Mike
MacFaden, and Mike Piecuch for their comments on this document.
Comments should be made directly to the MPLS mailing list at
mpls@uu.net.
14. IANA Considerations
As described in [MPLSMGMT] and as requested in the MPLS-TC-STD-MIB
[RFC3811], MPLS related standards track MIB modules should be rooted
under the mplsStdMIB subtree. There are 4 MPLS MIB Modules contained
in this document, each of the following "IANA Considerations"
subsections requests IANA for a new assignment under the mplsStdMIB
subtree. New assignments can only be made via a Standards Action as
specified in [RFC2434].
Srinivasan, et al. Standards Track [Page 64]
RFC 3812 MPLS-TE-STD-MIB June 2004
14.1. IANA Considerations for MPLS-TE-STD-MIB
The IANA has assigned { mplsStdMIB 3 } to the MPLS-TE-STD-MIB module
specified in this document.
15. References
15.1. Normative References
[RFC2119] Bradner, S., "Key Words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC2578] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Structure of Management Information Version 2 (SMIv2)",
STD 58, RFC 2578, April 1999.
[RFC2579] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Textual Conventions for SMIv2", STD 58, RFC 2579, April
1999.
[RFC2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Conformance Statements for SMIv2", STD 58, RFC 2580,
April 1999.
[RFC2702] Awduche, D., Malcolm, J., Agogbua, J., O'Dell, M., and J.
McManus, "Requirements for Traffic Engineering Over MPLS",
RFC 2702, September 1999.
[RFC2863] McCloghrie, K. and F. Kastenholtz, "The Interfaces Group
MIB ", RFC 2863, June 2000.
[RFC3031] Rosen, E., Viswanathan, A., and R. Callon, "Multiprotocol
Label Switching Architecture", RFC 3031, January 2001.
[RFC3209] Awduche, D., Berger, L., Gan, D., Li, T., Srinivasan, V.,
and G. Swallow, "RSVP-TE: Extensions to RSVP for LSP
Tunnels", RFC 3209, December 2001.
[RFC3212] Jamoussi, B., Ed., Andersson, L., Callon, R, Dantu, R.,
Wu, L., Doolan, P., Worster, T., Feldman, N., Fredette,
A., Girish, M., Gray, E., Heinanen, J., Kilty, T., and A.
Malis, "Constraint-Based LSP Setup using LDP", RFC 3212,
January 2002.
[RFC3289] Baker, F., Chan, K., and A. Smith, "Management Information
Base for the Differentiated Services Architecture", RFC
3289, May 2002.
Srinivasan, et al. Standards Track [Page 65]
RFC 3812 MPLS-TE-STD-MIB June 2004
[RFC3291] Daniele, M., Haberman, B., Routhier, S., and J.
Schoenwaelder, "TextualConventions for Internet Network
Addresses", RFC 3291, May 2002.
[RFC3411] Harrington, D., Presuhn, R., and B. Wijnen, "An
Architecture for Describing Simple Network Management
Protocol (SNMP) Management Frameworks", STD 62, RFC 3411,
December 2002.
[RFC3811] Nadeau, T. and J. Cucchiara, "Definition of Textual
Conventions and for Multiprotocol Label Switching (MPLS)
Management", RFC 3811, June 2004.
[RFC3813] Srinivasan, C., Viswanathan, A., and T. Nadeau,
"Multiprotocol Label Switching (MPLS) Label Switching
(LSR) Router Management Information Base (MIB)", RFC 3813,
June 2004.
15.2. Informative References
[MPLSMGMT] Nadeau, T., Srinivasan, C., and A. Farrel, "Multiprotocol
Label Switching (MPLS) Management Overview", Work in
Progress, September 2003.
[RFC2434] Narten, T. and H. Alvestrand., "Guidelines for Writing an
IANA Considerations Section in RFCs", BCP 26, RFC 2434,
October 1998.
[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statement for Internet
Standard Management Framework", RFC 3410, December 2002.
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RFC 3812 MPLS-TE-STD-MIB June 2004
16. Authors' Addresses
Cheenu Srinivasan
Bloomberg L.P.
499 Park Ave., New York, NY 10022
Phone: +1-212-893-3682
EMail: cheenu@bloomberg.net
Arun Viswanathan
Force10 Networks, Inc.
1440 McCarthy Blvd
Milpitas, CA 95035
Phone: +1-408-571-3516
EMail: arunv@force10networks.com
Thomas D. Nadeau
Cisco Systems, Inc.
300 Apollo Drive
Chelmsford, MA 01824
Phone: +1-978-244-3051
EMail: tnadeau@cisco.com
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RFC 3812 MPLS-TE-STD-MIB June 2004
17. Full Copyright Statement
Copyright (C) The Internet Society (2004). This document is subject
to the rights, licenses and restrictions contained in BCP 78, and
except as set forth therein, the authors retain all their rights.
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Acknowledgement
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