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Cisco Bug: CSCul84382 - No DDN retry after DDN/MBR collision

Last Modified

Dec 26, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

14.0(30)

Description (partial)

Symptom:
DDN not sent for downlink data packets if MME doesn't send DDN Ack and MBR for TAU is sent from MME. UE can become active only if performs S1 Reestablishment. Volte calls can't go through in this case.

Conditions:
If there is DDN - MBR (TAU) collision, this issue is seen.
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