Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
snmp-server ifindex persist
snmp-server ifindex persist
To globally enable ifIndex values that will remain constant across reboots for use by SNMP, use the
snmp-server ifindex persist command. To globally disable inIndex persistence, use the no form of this
command.
snmp-server ifindex persist
no snmp-server ifindex persist
Syntax Description This command has no arguments or keywords.
Defaults Disabled.
Command Modes Global configuration mode
Command History
Usage Guidelines Interface index persistence occurs when ifIndex values in the IF-MIB persist across reboots and allow
for consistent identification of specific interfaces using SNMP.
The snmp-server ifindex persist global configuration command does not override the interface-specific
configuration. To override the interface-specific configuration of ifIndex persistence, enter the no snmp
ifindex persist and snmp ifindex clear interface configuration commands.
Entering the no snmp-server ifindex persist global configuration command enables and disables
ifIndex persistence for all interfaces on the routing device using ifDescr and ifIndex entries in the ifIndex
table of the IF-MIB.
Examples This example shows how to enable ifIndex persistence for all interfaces:
Router(config)# snmp-server ifindex persist
Related Commands
Release Modification
12.1(19)EW Support for this command was introduced on the Catalyst 4500 series switches.
Command Description
snmp ifindex clear Clears any previously configured snmp ifindex commands
that were entered for a specific interface.
snmp ifindex persist Enables ifIndex values in the Interfaces MIB (IF-MIB) that
persist across reboots (ifIndex persistence) on a specific
interface.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E