GMPLS-LSR-MIB

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Organization: Common Control And Management Protocols (CCAMP) Working Group

Last Updated: 2002-06-24

Description: GMPLS-LSR-MIB module

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What Is GMPLS-LSR-MIB?

GMPLS-LSR-MIB is a vendor-neutral IETF standards MIB defining managed objects for Generalized Multiprotocol Label Switching (GMPLS) routers/label-switch-routers (LSRs), an advanced MPLS/optical-transport signaling technology area that extends MPLS label switching to non-packet interfaces such as TDM, lambda, and fiber. It exposes per-interface signaling capability configuration, plus tables for incoming and outgoing label switched path segments (In-Segment and Out-Segment), including segment direction and TTL-decrement behavior for outgoing segments. Its monitoring value lies in label-switching path health and configuration: tracking in-segment and out-segment table entries reveals which label switched paths are currently established through the LSR and in which direction, letting an operator detect a segment that failed to establish or an unexpected TTL-handling configuration affecting traceroute/diagnostic behavior across the GMPLS network. It explicitly builds on and extends the standard MPLS-LSR-MIB framework to accommodate GMPLS's broader interface types. It is deployed on GMPLS-capable routers and optical switches in carrier transport networks that combine packet and non-packet (optical/TDM) label-switched paths. Engineers can download the GMPLS-LSR-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in GMPLS-LSR-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

GMPLS-capable router/optical label switch
vendor-neutral, standards-based MIB, not tied to a specific manufacturer

Monitoring Examples

An operator would poll gmplsInterfaceConfTable/gmplsInterfaceConfEntry to check gmplsInterfaceConfSignalingCaps and confirm which signaling capabilities (e.g. RSVP-TE extensions) are enabled on a given GMPLS interface. Checking gmplsInSegmentTable/gmplsInSegmentEntry and gmplsOutSegmentTable/gmplsOutSegmentEntry by gmplsInSegmentDirection/gmplsOutSegmentDirection reveals the currently established incoming and outgoing label-switched path segments, and a missing expected out-segment entry would indicate an LSP that failed to signal correctly. The gmplsOutSegmentTTLDecrement object shows whether TTL is being decremented on the outgoing segment, relevant to diagnosing traceroute visibility across the GMPLS path.

What Can Be Monitored

interface signaling capabilities
established incoming LSP segments
established outgoing LSP segments
segment direction
TTL-decrement behavior on outgoing segments

Imported Objects

From GMPLS-TC-MIB

GmplsSegmentDirection

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32
experimental

OIDs

OID symbolic	OID numeric	Type	Access	Description
gmplsLsrMIB	1.3.6.1.3.0			This MIB contains managed object definitions for the Generalized Multiprotocol Label Switching (GMPLS) Router.
gmplsLsrObjects	1.3.6.1.3.0.1
gmplsInterfaceConfTable	1.3.6.1.3.0.1.1		not-accessible	This table specifies per-interface GMPLS capability and associated information. It extends the information in mplsInterfaceConfTable.
gmplsInterfaceConfEntry	1.3.6.1.3.0.1.1.1		not-accessible	An entry in this table is created by an LSR for every interface capable of supporting GMPLS. Each entry in this table will exist only if corresponding entries in mplsInterfaceConfTable and ifTable exists. If the associated entry in mplsInterfaceConfTabel or ifTable is deleted, the corresponding entry in this table must also be deleted shortly thereafter. The indexing is the same as that for mplsInterfaceConfTabel. Thus, the entry with index 0 represents the per-platform label space and contains parameters that apply to all interfaces that participate in the per-platform label space.
BIT gmplsInterfaceConfSignalingCaps	1.3.6.1.3.0.1.1.1.1	Bits	read-create	Defines the signaling capabilities on this interface. Multiple bits may legitimately be set at once. Setting no bits implies that GMPLS signaling cannot be performed on this interface and all LSPs must be manually provisioned.
gmplsInSegmentTable	1.3.6.1.3.0.1.2		not-accessible	This table extends the mplsInSegmentTable to provide GMPLS-specific information about incoming segments to an LSR.
gmplsInSegmentEntry	1.3.6.1.3.0.1.2.1		not-accessible	An entry in this table extends the representation of an incoming segment represented by an entry in mplsInSegmentTable. An entry can be created by a network administrator or an SNMP agent, or a GMPLS signaling protocol.
GMP gmplsInSegmentDirection	1.3.6.1.3.0.1.2.1.1	GmplsSegmentDirection	read-create	This variable indicates the direction of data flow on this segment.
gmplsOutSegmentTable	1.3.6.1.3.0.1.3		not-accessible	This table extends the mplsOutSegmentTable to provide GMPLS-specific information about outgoing segments from an LSR.
gmplsOutSegmentEntry	1.3.6.1.3.0.1.3.1		not-accessible	An entry in this table extends the representation of an outgoin segment represented by an entry in mplsOutSegmentTable. An entry can be created by a network administrator or an SNMP agent, or a GMPLS signaling protocol.
GMP gmplsOutSegmentDirection	1.3.6.1.3.0.1.3.1.1	GmplsSegmentDirection	read-create	This variable indicates the direction of data flow on this segment. This object cannot be modified if mplsOutSegmentRowStatus for the associated entry in the mplsOutSegmentTavle is active(1).
U32 gmplsOutSegmentTTLDecrement	1.3.6.1.3.0.1.3.1.2	Unsigned32	read-create	This variable indicates the amount by which to decrement the TTL of any payload packets forwarded on this segment if per-hop decrementing is being done. A value of zero indicates that no decrement should be made or that per-hop decrementing is not in force. See the gmplsTunnelTTLDecrement object in the gmplsTunnelTable of [GMPLSTEMIB] for a value by which to decrement the TTL for the whole of a tunnel. This object cannot be modified if mplsOutSegmentRowStatus for the associated entry in the mplsOutSegmentTavle is active(1).
gmplsLsrConformance	1.3.6.1.3.0.2
gmplsLsrGroups	1.3.6.1.3.0.2.1
gmplsInterfaceGroup	1.3.6.1.3.0.2.1.1			Collection of objects needed for GMPLS interface configuration and performance information.
gmplsInSegmentGroup	1.3.6.1.3.0.2.1.2			Collection of objects needed to implement a GMPLS in-segment.
gmplsOutSegmentGroup	1.3.6.1.3.0.2.1.3			Collection of objects needed to implement a GMPLS out-segment.
gmplsLsrCompliances	1.3.6.1.3.0.2.2
gmplsLsrModuleCompliance	1.3.6.1.3.0.2.2.1			Compliance statement for agents that support the GMPLS LSR MIB.

RFC description

Defines managed objects for configuring and monitoring Generalized Multiprotocol Label Switching Label Switching Routers (RFC 4803). Manages GMPLS interfaces, incoming/outgoing segments, and label configuration across packet switching, TDM, and optical switching technologies.

Start monitoring Vendor-neutral GMPLS-capable optical/packet transport router or switch, any manufacturer/optical label switch (LSR) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download GMPLS-LSR-MIB

What Is GMPLS-LSR-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description