Cisco Bug: CSCus21932 - SRVCC Hanged EGTPC Resources on Sv interface when no CS to PS complete
Feb 05, 2017
- Cisco ASR 5000 Series
Known Affected Releases
Symptom: The SRVCC failure scenario is the following : 1- PS to CS Request sent to MSC 2- PS to CS Response received from MSC 3- Radio Failure happens after the HO Command (id-RelocationComplete message not received by the target RNC after id-RelocationDetect) In this case, we can easily check that EGTP resources are still allocated on MME side while the subscriber is not present anymore on the MME. show egtpc sessions egtp-service service_name shows existing sessions even though the subscriber is no longer seen on this MME. Conditions: MSC is not sending the PS to CS Complete message after the handover complete. Subscriber has moved off the MME but the egtpc session on Sv interface remains.
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Bug Details Include
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