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
redundancy
redundancy
To enter the redundancy configuration mode, use the redundancy command in the global configuration
mode.
redundancy
Syntax Description This command has no arguments or keywords.
Defaults This command has no default settings.
Command Modes Global configuration mode
Command History
Usage Guidelines The redundancy configuration mode is used to enter the main CPU submode.
To enter the main CPU submode, use the main-cpu command in the redundancy configuration mode.
The main CPU submode is used to manually synchronize the configurations on the two supervisor
engines.
From the main CPU submode, use the auto-sync command to enable automatic synchronization of the
configuration files in NVRAM.
Use the no command to disable redundancy. If you disable redundancy, then reenable redundancy, the
switch returns to default redundancy settings.
Use the exit command to exit the redundancy configuration mode.
Examples This example shows how to enter redundancy mode:
Switch(config)# redundancy
Switch(config-red)#
This example shows how to enter the main CPU submode:
Switch(config)# redundancy
Switch(config-red)# main-cpu
Switch(config-r-mc)#
Related Commands
Release Modification
12.1(12c)EW Support for this command was introduced on the Catalyst 4500 series switch
(Catalyst 4507R and 4510R only).

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