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Cisco Bug: CSCus57164 - MME's incorrect behaviour during UE's idle mode entry and ISDR received

Last Modified

Dec 24, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

15.0(934) 17.2.0.58678

Description (partial)

Symptom:
MME sending LRC to eNB during the idle mode entry of the UE

Conditions:
1. UE is attached, moving to idle mode.
2. While user's idle mode entry is in progress, i.e REL ACCESS BEARER request is sent to SGW.
3. MME receives ISDR from HSS with flags EPS User State Request, EPS Location Information Request, Current Location Request set
4. MME sends LRC to eNB.
5. SGW sends REL ACCESS BEARER response.
6. MME sends UE Context release to eNB.
7. MME responds with ERROR INDICATION enb in response to LOCATION REPORT sent by eNB.
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