Cisco Catalyst 8540 MSR Technical Information download pdf (Page 27)

Chapter 3 Initially Configuring the ATM Switch Router

Configuring Redundancy and Enhanced High System Availability (Catalyst 8540 MSR)

3-27

ATM Switch Router Software Configuration Guide

78-6277-03, Cisco IOS Release 12.0(13)W5(19)

Immediately Synchronizing Route Processor Configurations (Catalyst 8540 MSR)

To immediately synchronize the configurations used by the two route processors, use the following

privileged EXEC command on the primary route processor:

Example

In the following example, both the startup and running configurations are synchronized immediately:

Switch# redundancy manual-sync both

Synchronizing the Configurations During Switchover (Catalyst 8540 MSR)

To manually synchronize the configurations used by the two route processors during a switchover,

perform the following steps on the primary route processor, beginning in global configuration mode:

Example

In the following example, both the startup and running configurations are synchronized:

Switch(config)# redundancy

Switch(config-r)# main-cpu

Switch(config-r-mc)# sync config both

Switch(config-r-mc)# end

Switch# copy running-config startup-config

Command Purpose

redundancy manual-sync {startup-config |

running-config | both}

Immediately synchronizes the configuration.

Command Purpose

Step 1

Switch(config)# redundancy

Switch(config-r)#

Enters redundancy configuration mode.

Step 2

Switch(config-r)# main-cpu

Switch(config-r-mc)#

Enters main-cpu configuration submode.

Step 3

Switch(config-r-mc)# sync config {startup |

running | both}

1. Alternatively, you can force an immediate synchronization by entering the redundancy manual-sync command in

privileged EXEC mode.

Synchronizes either or both configurations during

switchover or writing the files to NVRAM.

Step 4

Switch(config-r-mc)# end

Switch#

Returns to privileged EXEC mode.

Step 5

Switch# copy running-config startup-config Forces a manual synchronization of the

configuration files in NVRAM.

Note This step is unnecessary to synchronize

the running configuration file in DRAM.

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