Automatic synchronization can be configured in the config>system> synchronization context.
Manual synchronization can be configured with the following command:
admin
redundancy
synchronize {boot-env | config}
admin>redundancy# synchronize config
The following shows the output that displays during a manual synchronization:
ALU-1>admin>redundancy# synchronize config
Syncing configuration......
Syncing configuration.....Completed.
ALU-1#