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Cisco Bug: CSCuw28172 - No Response From PS CN With IU Release Command

Last Modified

Dec 25, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

18.0.0.59347

Description (partial)

Symptom:
SGSN does not send RANAP_IU_RELEASE_COMMAND [PS] towards the AP side.

Conditions:
Scenario:

1. CS call and PS IU is active but PS RAB is absent
2. AP sends one HO candidate but, before initiating HO, the PS IU connection has to be released from AP. So, AP sends RANAP_IU_RELEASE_REQUEST [PS] to core network
3. No response RANAP_IU_RELEASE_COMMAND [PS] is received from PS core to AP
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