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
issu set rollback-timer
issu set rollback-timer
To configure the In Service Software Upgrade (ISSU) rollback timer value, use the
issu set rollback-timer command.
issu set rollback-timer seconds
Syntax Description
Defaults Rollback timer value is 2700 seconds.
Command Modes Global configuration mode
Command History
Usage Guidelines Use the issue set rollback-timer command to configure the rollback timer value. You can only enable
this command when the supervisor engines are in the init state.
Examples This example shows how you can set the rollback timer value to 3600 seconds, or 1 hour:
Switch# configure terminal
Switch(config)# issu set rollback-timer 3600
Switch(config)# end
Switch#
Related Commands
seconds Specfies the rollback timer value, in seconds. The valid timer value range is
from 0 to 7200 seconds (2 hours). A value of 0 seconds disables the rollback
timer.
Release Modification
12.2(31)SGA This command was introduced on the Catalyst 4500 series switch.
Command Description
issu acceptversion Halts the rollback timer and ensures that the new Cisco IOS
software image is not automatically stopped during the
ISSU process.
issu set rollback-timer Configures the In Service Software Upgrade (ISSU)
rollback timer value.

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