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Cisco Bug: CSCup41604 - MME not initiating ue context modification during x2 handof in foll scen

Last Modified

Dec 25, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

15.0(21)

Description (partial)

Symptom:
1. Attach
2. Path swtich request sent by tgt enb.
3. mme sends modify bearer request to sgw ..No response .. 
4. Sgs paging for mt call .. mme sends cs service notification through tgt enb .. Ue responds over uplink nas  with extended service request .. MME sends ue context modification .. Enb responds with unsuccessfull outcome with cause x2 handover triggered.
5. SGW responds with modify bearer response .. MME sends path swich successfull outcome.

Conditions:
Build used - 55432

Call failing to trigger CSFB during eNB x2 handover when x2 handover gets cancelled.
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