Cisco Bug: CSCuq53222 - HNBGW:56175:After Handin complete on Target HNB, HNBGW sends RUA disconn
Dec 26, 2016
- Cisco ASR 5000 Series
Known Affected Releases
Symptom: UE was doing flip-flop between Src-FAP and Target-FAP. Iurh-based Handoff was triggered for single CS-RAB and Tgt-HNB sent TNL Update towards the HNBGW. Subsequently, HNBGW received RUA-Connect for the PS-domain for the same UE from the Src-HNB. HNBGW received another TNL Update now, with multiRAB (CS + PS) for the same UE within 5 Seconds. UE with multiRAB(CS + PS domain) was succesfully Relocated to Target-HNB from Src-HNB via Iurh-Based Handoff. Subsequently, HNBGW triggered RUA-Disconnect for the CS-domain towards the Target-HNB in one particular case, which lead to CS- domain Call-drop at Target-HNB. . Conditions: UE was doing flip-flop between Src-HNB and Target-HNB resulting in Iurh-Based Handoff Relocation for single-domain (CS), Iurh-Reloc Cancellation and another set of Iurh-based Handoff. In between, another domain RAB (PS) was also established from the Source-HNB for the same UE and thus, the new TNL Update contained multi-RAB (CS + PS) and the UE was successfully Relocated to Target-HNB. All these things were performed before the Iurh-Guard-timer expiry time.
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