Cisco 7604 Configuration Guide - Page 269
Failover Triggers
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Chapter 14 Configuring Failover Understanding Failover Failover Triggers The following commands are replicated to the standby unit: • all configuration commands except for the mode and failover lan unit commands • copy running-config startup-config • delete • mkdir • rename • rmdir • write memory The following commands are not replicated to the standby unit: • all forms of the copy command except for copy running-config startup config • all forms of the write command except for write memory • asdm disconnect • debug • failover lan unit • failover suspend-config-sync • mode • show • ssh disconnect You can use the write standby command to resynchronize configurations that have become out of sync. For Active/Active failover, the write standby command behaves as follows: • If you enter the write standby command in the system execution space, the system configuration and the configurations for all of the security contexts on FWSM is written to the peer unit. This includes configuration information for security contexts that are in the standby state. You must enter the command in the system execution space on the unit that has failover group 1 in the active state. • If you enter the write standby command in a security context, only the configuration for the security context is written to the peer unit. You must enter the command in the security context on the unit where the security context appears in the active state. Replicated commands are not saved to the Flash memory when replicated to the peer unit. They are added to the running configuration. To save replicated commands to Flash memory on both units, use the write memory or copy running-config startup-config command on the unit that you made the changes on. The command will be replicated to the peer unit and cause the configuration to be saved to Flash memory on the peer unit. In Active/Active failover, failover can be triggered at the unit level if one of the following events occurs: • The unit has a hardware failure. • The unit has a power failure. • The unit has a software failure. • The no failover active or the failover active command is entered in the system execution space. OL-20748-01 Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM 14-15
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