1.3.4 Registration Record Maintenance

Registration records reside at the custom resolver service and are associated with an expiry time and date. These records are to be deleted or marked as invalid by that expiry time (which is determined by the implementation of the service), unless the resolver client that initially registered that endpoint information sends a request to the service that the record be stored longer.

If the resolver service fails, the resolver clients that use the service attempt to refresh or reregister their information. After the resolver service is restarted, it repopulates its records data store of registration records upon receiving refresh or reregistration requests from resolver clients.