Origin Host and Origin Realm for Gy

For each subscriber, SMF maintains a record of the Origin-Realm and Origin-Host attribute information sent by OCS through Diameter messages. If there’s any value change to the Origin-Host and Origin-Realm attributes, SMF updates the latest value and interacts with the corresponding destination host. Later, SMF increments the ocs_dest_host_change_stats statistics for every change in the attribute value.