Cisco Bug: CSCvh67114 - sessmgr restarts at function egtpc_validate_context_ack_rsp_evt
Mar 07, 2018
- Cisco ASR 5000 Series
- Cisco ASR 5500
Known Affected Releases
21.6.0 18.104.22.168679 21.7.0
Symptom: Sessmgr task restart during TAU attach procedure Conditions: 1. Decor feature config is enabled on MME 2. During TAU attach DCN MME node receives a context response with negative cause: EGTP_CAUSE_USER_AUTHENTICATION_FAILED from old MME, 3. DCN MME triggers a NAS Identity procedure towards UE and it's successful 4. DCN MME triggers a AIR/AIA towards HSS, receives AIR from HSS with UE usage type. Based on UE usage type MME decides to re-route a message leading to sessmgr task restart.
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Bug Details Include
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