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Cisco Bug: CSCvv98293 - Handling DBReq/HO-CSReq collison on SMF

Last Modified

Oct 16, 2020

Products (1)

  • Cisco Wireless Mobile Application

Known Affected Releases

2020.3

Description (partial)

Symptom:
DBReq and CSReq (HO=1) collision Handling leads to HO Failures.

Conditions:
CN-SMF,  collision handling of DBReq and WiFi Handovers - SMF is unable to process received CSReq with HO=1 as SMF is waiting for DBResp. 

SMF has WiFi/LTE session and initiates DBReq for Voice-call-Removal and waiting for DBResp which is blocked to IPc. Further SMF is unable to process WiFi to LTE or LTE  to WiFi depends on call-model and eventually HO shall failure.
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