Cisco Bug: CSCus21887 - PGW doesn't send Update bearer request to update existing TFT

Last Modified

Dec 26, 2016

Products (1)

Cisco ASR 5000 Series

Known Affected Releases

15.0

Description (partial)

Symptom:
During Volte MT call, the PGW doesn't send intermittently update bearer request (to update ports) for existing TFT.
The calls fail.

Conditions:
-Mobile is connected to ims apn(using IPV6 address)
-Trigger a mobile terminating call
-1st RAR is received at PGW with port 0
-PGW sends create bearer request creating RTP and RTCP TFT
-2nd RAR is received with updated ports
-no update bearer request is sent.

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