Cisco Systems EA6500 Manual De Usuario

If the redundant supervisor engine is running Catalyst operating system software, remove 
the active supervisor engine and boot the switch with only the redundant supervisor engine 
installed. Follow the procedures in the release notes to convert the redundant supervisor 
engine from Catalyst operating system software.

The configuration register in the startup-config must be set to autoboot (see the 

).

EHSA does not support booting from the network. 

If these requirements are met, the switch functions in EHSA mode by default.

During normal operation, the startup-config and config-registers configuration are synchronized by 
default between the two supervisor engines. In a switchover, the new active supervisor engine uses the 
current configuration. 

The boot variables are not synchronized by default.

To manually synchronize the configurations used by the two supervisor engines, perform this task on the 
active supervisor engine:

The auto-sync standard command does not synchronize the boot variables.

This example shows how to reenable the default automatic synchronization feature using the auto-sync 
standard command to synchronize the startup-config and config-register configuration of the active 
supervisor engine with the redundant supervisor engine:

Router(config)# redundancy

Router(config-r)# main-cpu

Router(config-r-mc)# auto-sync standard

Router(config-r-mc)# auto-sync bootvar

Router(config)# redundancy 

Enters redundancy configuration mode.

Router(config-r)#

 

 

Enters main-cpu configuration submode.

Router(config-r-mc)# auto-sync {startup-config | 

 | bootvar | standard} 

Synchronizes the configuration elements.

Router(config-r-mc)# end 

Returns to privileged EXEC mode.

Router# copy running-config startup-config 

Forces a manual synchronization of the configuration 
files in NVRAM. 

This step is not required to synchronize the 
running configuration file in DRAM.