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Cisco Bug: CSCvh67114 - sessmgr restarts at function egtpc_validate_context_ack_rsp_evt

Last Modified

Mar 07, 2018

Products (2)

  • Cisco ASR 5000 Series
  • Cisco ASR 5500

Known Affected Releases

21.6.0 21.7.0

Description (partial)

Sessmgr task restart during TAU attach procedure

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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