Cisco Cisco IOS Software Release 12.0(21)S
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Cisco IOS Release 12.1(2)T and 12.0(20)S
IF-MIB Link Operational Status for Subinterfaces
This feature module describes the enhancement of the Interfaces Group MIB for subinterfaces and
RFC 2233 compliance for Cisco’s implementation of the IF-MIB in Cisco IOS Software
Release 12.1(2)T and 12.0(21)S3. This document includes the following sections:
RFC 2233 compliance for Cisco’s implementation of the IF-MIB in Cisco IOS Software
Release 12.1(2)T and 12.0(21)S3. This document includes the following sections:
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Please see the Glossary for definitions of any unfamiliar terms or acronyms.
Feature Overview
This feature module documents enhancements made to the Interfaces Group MIB module (IF-MIB) in
Cisco IOS Release 12.1(2)T and 12.0(21)S3. These MIB enhancements bring the IF-MIB into
compliance with RFC 2233 and provide SNMP support for subinterfaces. Additionally, you can now
configure SNMP to use either the existing Cisco implementation of linkUp / linkDown traps or the new
implementation consistent with Internet Engineering Task Force (IETF) standards. This configuration
is achieved through the use of a new Cisco IOS CLI command.
Cisco IOS Release 12.1(2)T and 12.0(21)S3. These MIB enhancements bring the IF-MIB into
compliance with RFC 2233 and provide SNMP support for subinterfaces. Additionally, you can now
configure SNMP to use either the existing Cisco implementation of linkUp / linkDown traps or the new
implementation consistent with Internet Engineering Task Force (IETF) standards. This configuration
is achieved through the use of a new Cisco IOS CLI command.