Cisco Bug: CSCul54109 - MME after Detach Request to UE, goes to immediate UE context release
Dec 25, 2016
- Cisco ASR 5000 Series
Known Affected Releases
Symptom: MME sends a NAS Detach Request, then immediately sends an S1AP UE Context Release Request and an S11 Delete Session Request. The problem with this approach, as seen in the field, is that the eNodeB may not be able to forward the Detach Request to the UE if the UE Context Release Request arrives immediately afterwards and causes the eNodeB to tear down the radio resources without sending the Detach Request to the UE. The end result is that the UE believes it is attached but Idle, when it is in fact detached. Conditions: This behavior is systematic.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.
Bug Details Include
- Full Description (including symptoms, conditions and workarounds)
- Known Fixed Releases
- Related Community Discussions
- Number of Related Support Cases