Guidelines for Activating High Availability

Before you activate high availability on the line modules, you must be aware of any high availability–related changes to line module management commands. For information on high availability-related changes to SRP modules, see Managing Stateful SRP Switchover.

You activate high availability (stateful line module switchover) by launching Redundancy Configuration mode and issuing the mode high-availability slot command. The high-availability slot keyword enables high availability mode for stateful line module switchover. In this mode, the router uses mirroring to keep the configuration and state of the standby line module coordinated with the configuration and state of the active line module.

When activating high availability, keep the following in mind:

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