MPLS-LC-FR-MIB-DRAFT-01

All MIBs › MPLS-LC-FR-MIB-DRAFT-01

Organization: Multiprotocol Label Switching (MPLS) Working Group

Last Updated: 2004-01-30

Category: Frame Relay, MPLS Traffic Engineering

Description: Defines IETF draft SNMP objects for managing MPLS label-controlled Frame Relay interfaces and label distribution.

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What Is MPLS-LC-FR-MIB-DRAFT-01?

MPLS-LC-FR-MIB-DRAFT-01 is an early IETF draft module (per RFC 3034) defining managed objects for MPLS Label-Controlled Frame Relay (LC-FR) interfaces, which map MPLS labels onto Frame Relay DLCI ranges so that Frame Relay switches can participate in a label-switched network. It exposes interface configuration for splitting a DLCI range between labeled traffic and control traffic, row-status-based provisioning, notifications, and standard conformance groups. Monitoring emphasis is on interface provisioning status: row status reveals whether an LC-FR interface configuration is active, and the DLCI range objects confirm correct label/control traffic separation on that interface. It depends on RFC 3034's LC-FR framework and implicitly on base MPLS and Frame Relay MIB conventions for underlying interface objects. Typical deployment is legacy Frame Relay/MPLS edge routers or switches performing label-controlled Frame Relay interworking. Engineers implementing or auditing this functionality typically reference the MPLS-LC-FR-MIB-DRAFT-01 RFC/standard documentation for the authoritative specification.

IPNetwork Monitor allows you to monitor SNMP objects defined in MPLS-LC-FR-MIB-DRAFT-01. 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/Frame Relay label-switching router

Monitoring Examples

An admin polls mplsLcFrIfConfTable (mplsLcFrIfConfEntry) and checks mplsLcFrIfConfRowStatus for a given interface to confirm it is active rather than stuck notReady. mplsLcFrTrafficMinDlci/mplsLcFrTrafficMaxDlci versus mplsLcFrCtrlMinDlci/mplsLcFrCtrlMaxDlci show how the DLCI range is split between labeled traffic and control traffic, and mplsLcFrNotifications would alert on a misconfiguration or state change on that interface.

What Can Be Monitored

interface row status/provisioning
traffic DLCI range
control DLCI range
label-controlled FR interface configuration

Imported Objects

From FRAME-RELAY-DTE-MIB

DLCI

From MPLS-LSR-STD-MIB

mplsInterfaceIndex

OBJECT-TYPE

From MPLS-TC-STD-MIB

mplsStdMIB

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE
enterprises

From SNMPv2-TC

RowStatus
StorageType

OIDs

OID symbolic	OID numeric	Type	Access	Description
mplsLcFrMIB	1.3.6.1.4.1.99999.41			This MIB contains managed object definitions for MPLS Label Controlled Frame-Relay interfaces as defined in RFC3034.
mplsLcFrNotifications	1.3.6.1.4.1.99999.41.0
mplsLcFrObjects	1.3.6.1.4.1.99999.41.1
mplsLcFrIfConfTable	1.3.6.1.4.1.99999.41.1.1		not-accessible	This table specifies per-interface MPLS LC-FR capability and associated information. In particular, this table extends the MPLS-LSR MIB's mplsInterfaceConfTable.
mplsLcFrIfConfEntry	1.3.6.1.4.1.99999.41.1.1.1		not-accessible	An entry in this table is created by an LSR for every interface capable of supporting MPLS LC-FR. Each entry in this table will exist only if a corresponding entry in ifTable and mplsInterfaceConfTable exist. If the associated entries in ifTable and mplsInterfaceConfTable are deleted, the corresponding entry in this table must also be deleted shortly thereafter.
DLC mplsLcFrTrafficMinDlci	1.3.6.1.4.1.99999.41.1.1.1.1	DLCI	read-create	This is the minimum DLCI value over which this LSR is willing to accept traffic on this interface.
DLC mplsLcFrTrafficMaxDlci	1.3.6.1.4.1.99999.41.1.1.1.2	DLCI	read-create	This is the max DLCI value over which this LSR is willing to accept traffic on this interface.
DLC mplsLcFrCtrlMinDlci	1.3.6.1.4.1.99999.41.1.1.1.3	DLCI	read-create	This is the min DLCI value over which this LSR is willing to accept control traffic on this interface.
DLC mplsLcFrCtrlMaxDlci	1.3.6.1.4.1.99999.41.1.1.1.4	DLCI	read-create	This is the max DLCI value over which this LSR is willing to accept control traffic on this interface.
ROW mplsLcFrIfConfRowStatus	1.3.6.1.4.1.99999.41.1.1.1.5	RowStatus	read-create	This is object is used to create and delete entries in this table. When configuring entries in this table, the corresponding corresponding ifEntry and mplsInterfaceConfEntry MUST exist before hand. If an entry is attempted to be created by a manager for a corresponding mplsInterfaceConfEntry that does not support LC-FR, the agent MUST return an inconsistentValue error. If this table is implemented read-only, then the agent must set this object to active(1) when this row is made active. If this table is implemented writable, then an agent MUST not allow modification to its objects once this value is set to active(1).
STO mplsLcFrIfConfStoreType	1.3.6.1.4.1.99999.41.1.1.1.6	StorageType	read-create	This SNMP storage type for this entry. All objects are writable for permanent entries.
mplsLcFrConformance	1.3.6.1.4.1.99999.41.2
mplsLcFrCompliances	1.3.6.1.4.1.99999.41.2.1
mplsLcFrModuleCompliance	1.3.6.1.4.1.99999.41.2.1.1			Compliance statement for agents that support MPLS LC-FR Interfaces.
mplsLcFrGroups	1.3.6.1.4.1.99999.41.2.2
mplsLcFrIfGroup	1.3.6.1.4.1.99999.41.2.2.1			Collection of objects needed for MPLS LC-FR interface configuration.

RFC description

MPLS Label Controlled Frame-Relay interface configuration and monitoring.

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Download MPLS-LC-FR-MIB-DRAFT-01

What Is MPLS-LC-FR-MIB-DRAFT-01?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description