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Cisco Catalyst 4500 Series Command Reference Guide

Cisco Catalyst 4500 Series
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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
OL-27596 -01
Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
redundancy force-switchover
redundancy force-switchover
To force a switchover from the active to the standby supervisor engine, use the redundancy
force-switchover command.
redundancy force-switchover
Syntax Description This command has no arguments or keywords.
Defaults This command has no default settings.
Command Modes Privileged EXEC mode
Command History
Usage Guidelines Before using this command, refer to the “Performing a Software Upgrade” section of the Catalyst 4500
Series Switch Cisco IOS Software Configuration Guide for additional information.
The redundancy force-switchover command conducts a manual switchover to the redundant supervisor
engine. The redundant supervisor engine becomes the new active supervisor engine running the
Cisco IOS image. The modules are reset.
The old active supervisor engine reboots with the new image and becomes the standby supervisor engine.
Examples This example shows how to switch over manually from the active to the standby supervisor engine:
Switch# redundancy force-switchover
Switch#
Related Commands
Release Modification
12.1(12c)EW Support for this command was introduced on the Catalyst 4500 series switch
(Catalyst 4507R only).
Command Description
redundancy Enters the redundancy configuration mode.
show redundancy Displays redundancy facility information.

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Cisco Catalyst 4500 Series Specifications

General IconGeneral
SeriesCatalyst 4500 Series
CategorySwitch
Layer SupportLayer 2, Layer 3
Form FactorModular chassis
StackableNo
Chassis Slots3, 6, 7, 10
Power Supply OptionsAC, DC
RedundancyPower supply, Supervisor engine
Network ManagementCisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
FeaturesSecurity, QoS
Port DensityUp to 384 ports per chassis
Security Features802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine8-E

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