Initial Hitless Failover

To initiate hitless failover on a network that uses network login:

Confirm that the nodes are synchronized and have identical software and switch configurations using the show switch {detail} command.
If the primary and backup nodes, are not synchronized and both nodes are running a version of ExtremeXOS that supports synchronization, proceed to the next step.
If the primary and backup nodes, are synchronized, proceed to Step 3.
The output displays the status of the primary and backup nodes, with the primary node showing MASTER and the backup node showing BACKUP (InSync).
If the primary and backup nodes, are not synchronized, use the synchronize command to replicate all saved images and configurations from the primary to the backup.
After you confirm that the nodes are synchronized, proceed to Step 3.
If the nodes are synchronized, use the show ports tdm information command to initiate failover.

For more detailed information about verifying the status of the nodes and system redundancy, see Understanding System Redundancy. For more information about hitless failover, see Understanding Hitless Failover Support.