Heartbeat Handling
Whenever a PFCP entity receives a Heartbeat Request message (even from unknown peers), it responds with a Heartbeat Response message.
After a path failure is detected due to No response to peer error, no further Heartbeat Request is sent to that peer until the association is reestablished. Calls are cleared based on the path failure detection policy configuration.
Note | After the Sx associations are removed, the heartbeat is stopped when Sx path failure is detected. |