SRRP activity and Diameter peer activity are independent of each other, and consequently, an SRRP switchover that is because of an access link or path failure does not cause Diameter peers to switchover. However, a SRRP switchover can trigger a Diameter application to notify the application server (for example, PCRF) of this event. This is performed through the AN-GW-IP AVP which is reported in CCR-U message sent to the PCRF. AN-GW-IP AVP carries the IP address of the newly active SRRP SR node, where the application session is now active. This functionality is enabled on the application level by arming the Diameter client on SR node with the event-trigger ID 13 (USER_LOCATION_CHANGE) from the PCRF.