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Cisco Bug: CSCuq24121 - Normal pdn gets cleared in normal -pure s+ volte -collapsd multipdn

Last Modified

Dec 25, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

17.0.0.56124 17.0.0.56172

Description (partial)

Symptom:
In case of multipdn same IMSI session with pure S session as normal PDN and collapsed mode as Volte PDN.
PGW on which normal PDN resides  delets  PDN though  same IMSI has volte PDN on same SGW service.Instead of performing IMSI lookup and marking  normal PDN with auto-delete.

Conditions:
1.SGW21 & PGW21 on boxer in collapsed mode.PGW11  not associated with any saegw-service on boxer
2.Initiate a call on PGW11 & SGW21 normal PDN no dedicated bearer.
3.Initiate second PDN for same session on PGW21 --colocated volte PDN
4.Clear sub all non-volte-call auto-delete --Fire this CLI 
5.as per disign doc for Intelligent graceful pdn disconnection section 6.3 the normal PDN on PGW should not be cleared.It should be marked as auto-delete.Per here normal PDN gets deleted.
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