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Cisco Bug: CSCvu57146 - UPF Dropping Data received on default flow after 4g to 5g idle mode

Last Modified

Sep 17, 2020

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

21.15.36.75832 21.15.41

Description (partial)

Symptom:
Second Voice call fails after first sucessful Voice call due to epsfb.

Conditions:
After finishing first voice call due to epsfb and ue moves to 5g using 4g to 5g idle mode, as part of the idle mode ho ue want to go idle mode, so no n3 tunnel setup during idle mode 4g to 5g ho
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