Cisco Systems 78-16019-02 Configuring CPU Switch Module Redundancy

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Cisco ONS 15530 Configuration Guide and Command Reference

78-16019-02, Cisco IOS Release 12.2(18)SV2

Chapter3 Initial Configuration Configuring CPU Switch Module Redundancy

•The activeCPU switch module fails. The standby CPU switch module takes over as the active CPU

switch module, using the last synchronized running configuration file (or the last saved startup

configuration file if the running configuration file synchronization was disabled or failed).

•A switchover is manually forced with the redundancy switch-activity command.

Configuring CPU Switch Module Redundancy

This section describes how to configure CPU switch module redundancy for your CiscoONS 15530.

Note The initial default configuration will support CPU switch module redundancy and database

synchronization with no manual configuration required.

Youcan manually force the standby CPU switch module to take over as the active CPU switch module

from privileged EXEC mode. To force a switchover from privileged EXEC mode, enter the following

command on the active CPU switch module CLI:

As long as you have not changed the default configuration register setting from autoboot, the standby

CPU switch module (formerly the active CPU switch module) automatically boots until it reaches the

hot-standby state.

Note Data transmission through the system is not affected by a CPU switch module switchover.

Example

The following exampleshows how to manually cause a CPU switch module switchover from privileged

EXEC mode:

Switch# redundancy switch-activity

This will reload the active unit and force a switch of activity [confirm] y

Preparing to switch activity

00:12:05: %SYS-5-RELOAD: Reload requested

Command Purpose

redundancy switch-activity [force] Causes a CPU switch module switchover. If the

standby CPU switch module has not reached the

hot-standby software state, use the force option.