Cisco Cisco IOS Software Release 12.2(18)S
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MPLS Enhancements to Interfaces MIB
Feature History
This document describes the Multiprotocol Label Switching (MPLS) enhancements to the existing
interfaces Management Information Base (MIB) (RFC 2233) to support an MPLS layer. This layer
provides counters and statistics specifically for MPLS.
interfaces Management Information Base (MIB) (RFC 2233) to support an MPLS layer. This layer
provides counters and statistics specifically for MPLS.
This document includes the following major sections:
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Feature Overview
The Interfaces MIB (IF MIB) provides a Simple Network Management Protocol (SNMP)-based method
for managing interfaces. Each entry in the IF MIB establishes indexing, statistics, and stacking
relationships among underlying physical interfaces, subinterfaces, and Layer 2 protocols that exist
within Cisco IOS.
for managing interfaces. Each entry in the IF MIB establishes indexing, statistics, and stacking
relationships among underlying physical interfaces, subinterfaces, and Layer 2 protocols that exist
within Cisco IOS.
The enhancements add an MPLS layer to the IF MIB as a Layer 2 protocol to provide statistics for traffic
encapsulated as MPLS on an interface. In this new structure, MPLS-specific data, such as
MPLS-encapsulated traffic counters and the MPLS maximum transmission unit (MTU), resides on top
of the underlying physical or virtual interface to allow separation from non-MPLS data.
encapsulated as MPLS on an interface. In this new structure, MPLS-specific data, such as
MPLS-encapsulated traffic counters and the MPLS maximum transmission unit (MTU), resides on top
of the underlying physical or virtual interface to allow separation from non-MPLS data.
Release
Modification
12.0(23)S
This feature was introduced.
12.2(18)S
This feature was integrated into Cisco IOS Release 12.2(18)S.