6.1.13 Hanging termination detection
23.3333GPPMultimedia Resource Function Controller (MRFC) - Multimedia Resource Function Processor (MRFP) Mp interface: Procedures descriptionsRelease 17TS
Whenever requesting new IP bearer terminations, the MRFC shall request the MRFP to periodically report termination heartbeat indications to detect hanging context and termination in the MRFP that may result e.g. from a loss of communication between the MRFC and the MRFP.
When the MRFC receives a termination heartbeat notification from the MRFP via the Termination heartbeat – Indication procedure, the MRFC shall return a Termination heartbeat –Indication Ack (without an error) if the context id / termination identity combination exists in the MRFC. If it does not exist, the MRFC shall return an error and shall correct the mismatch, e.g. by requesting the MRFP to subtract the indicated termination and to clear any associated context.
Figure 6.1.13.1: Termination heartbeat – Indication