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Cisco Bug: CSCur53899 - instance 5 should be sent in UL IDFT rsp from s.sgw to s.mme

Last Modified

Dec 26, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

17.0

Description (partial)

Symptom:
correct instance is not sent  in the idft response from source sgw to source mme during intra-EUTRAN HO

Conditions:
when intra-EUTRAN HO happens between S.SGW to T.SGW with UL IDFT request,
S.SGW does not send correct instance value in the IDFT Rsp msg towards S.MME

call flow: 

                    4. UL IDFT req with inst 5
S.MME -------------------------------------- S.SGW
|                 5. IDFT Rsp with inst 4 & 5 (3GPP TS 29.274 V11.12.0 , Table 7.2.19-2, NOTE 2)
|
|3. FRRsp with T.SGW's ULFTEID to S.MME
|
|                 1. UL IDFT req with inst 4 
T.MME--------------------------------------- T.SGW
                    2. UL IDFT rsp with inst 5
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