If the bunker site falls behind the Secondaries, you can reinitialize the bunker without disrupting replication between the Primary and the Secondary in the RDS. For example, in the case when the bunker site fails and is down for a period of days.
You can detach the bunker RLINK and reattach it with the
vradmin -a startrep command. This command reconnects the bunker and starts synchronization with the first write still outstanding for any Secondary. The bunker SRL starts receiving writes from this point onwards.