If a new standby CPM or CFM is inserted into the system, it synchronizes with the active CPM or CFM upon a successful boot process.
If the standby CPM or CFM is rebooted, it synchronizes with the active CPM or CFM after a successful boot process.
When configuration or state changes occur, an incremental synchronization is conducted from the active CPM or CFM to the standby CPM or CFM.
If the synchronization fails, the standby CPM or CFM does not reboot automatically. Use the show redundancy synchronization command to display synchronization output information.
If the active and standby CPMs or CFMs are not synchronized for any reason, you can manually synchronize the standby CPM or CFM by rebooting the standby by issuing the admin reboot standby command on the active or the standby CPM or CFM.