MPLS-LDP-FRAME-RELAY-MIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

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Organization: Multiprotocol Label Switching (mpls) Working Group

Last Updated: 2003-04-22

Category: Frame Relay, MPLS Traffic Engineering

Description: Provides IETF draft SNMP objects for managing LDP-based label distribution over Frame Relay interfaces in MPLS networks.

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What Is MPLS-LDP-FRAME-RELAY-MIB?

MPLS-LDP-FRAME-RELAY-MIB is a vendor-neutral IETF draft standards MIB for configuring and monitoring the Label Distribution Protocol (LDP) when Frame Relay is used as the Layer 2 media in an MPLS network. It defines managed objects covering LDP entity parameters specific to Frame Relay interfaces, such as label mapping and merge capability over Frame Relay virtual circuits. Its monitoring focus is protocol/session and interface-media status: it lets an operator confirm that LDP label distribution sessions are correctly negotiated and operating over Frame Relay links rather than exposing general hardware health metrics. It is explicitly dependent on the base MPLS-LDP-MIB and the broader MPLS-LSR-MIB architecture, since this module only supplements those with Frame-Relay-specific extensions. It is deployed on MPLS edge routers that use legacy Frame Relay circuits as the underlying Layer 2 transport for label-switched paths. Engineers implementing or auditing this functionality typically reference the MPLS-LDP-FRAME-RELAY-MIB RFC/standard documentation for the authoritative specification.

IPNetwork Monitor allows you to monitor SNMP objects defined in MPLS-LDP-FRAME-RELAY-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

  • vendor-neutral, standards-based MIB, not tied to a specific manufacturer
  • MPLS router with Frame Relay Layer 2 interfaces

Monitoring Examples

An operator would check the Frame-Relay-specific LDP entity table entries to confirm the correct DLCI-based interface index and merge capability are configured for a given LDP peering session, revealing whether label mapping over a particular Frame Relay virtual circuit is functioning. Discrepancies in the LDP session state over Frame Relay would indicate a mismatch in VC configuration or label merge negotiation between adjacent MPLS routers.

What Can Be Monitored

  • LDP entity Frame Relay interface mapping
  • label merge capability
  • LDP session status over Frame Relay
  • Frame Relay DLCI/interface association
Imported Objects

From IF-MIB

InterfaceIndexOrZero

From MPLS-LDP-MIB

mplsLdpEntityIndexOBJECT-TYPE
mplsLdpEntityLdpIdOBJECT-TYPE
mplsLdpPeerLdpIdOBJECT-TYPE

From MPLS-TC-MIB

mplsMIBOBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE
Unsigned32
enterprises

From SNMPv2-TC

RowStatus
StorageType
OIDs

RFC description

MPLS Label Distribution Protocol configuration over Frame Relay networks.

Start monitoring MPLS routers with Frame Relay interfaces 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 MPLS-LDP-FRAME-RELAY-MIB