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Cisco Bug: CSCuj51247 - Session failed to show multipoint cnf activated by EX 'Add+' button

Last Modified

Aug 25, 2014

Products (1)

  • Cisco Prime Collaboration

Known Affected Releases

9.5

Description (partial)

Symptom:
Session mgr (PCA - 172.20.116.81) has problem with ad-hoc multi-point conference hosted by CUCM (172.23.210.6 cisco/Ecmbu!23) provisioned MCU (172.23.223.82). 
Setup -
EX60-2 (10.17.196.38, 90002) calls EX60-1 (10.17.196.65, 90001).
Click "Add+" on EX60-2, call EX90-1 (10.17.196.107, 90003).
Click "Merge". 
90002 JTAPI sequence of events
Event= CiscoRTPOutputStartedEv Cause: CAUSE_NORMAL{ remoteAddress: /10.17.196.65 - to EX60-1
Event= CiscoRTPOutputStartedEv Cause: CAUSE_NORMAL{ remoteAddress: /10.17.196.107 - to EX90-1
Event= CiscoRTPOutputStartedEv Cause: CAUSE_NORMAL{ remoteAddress: /172.23.223.82 - to MCU

90001
Event= CiscoRTPOutputStartedEv Cause: CAUSE_NORMAL{ remoteAddress: /10.17.196.38 - to EX60-2
Event= CiscoRTPOutputStartedEv Cause: CAUSE_NORMAL{ remoteAddress: /172.23.223.82 - to MCU

90003
Event= CiscoRTPOutputStartedEv Cause: CAUSE_NORMAL{ remoteAddress: /10.17.196.38 - to EX60-2
Event= CiscoRTPOutputStartedEv Cause: CAUSE_NORMAL{ remoteAddress: /172.23.223.82 - to MCU

Screenshot #1 - Session treat this as Multisite, no MCU is shown. Note EX60 does not comes with built-in video bridge 
Screenshot #2 - MCU active conference

Now, I terminate the call from EX60-2. CUCM deallocates MCU ports and makes this a point to point call. (CTG advocates UC style adhoc call because it uses resource only when needed)
90001
Event= CiscoRTPOutputStartedEv Cause: CAUSE_NORMAL{ remoteAddress: /10.17.196.107 - to EX90-1
90003
Event= CiscoRTPOutputStartedEv Cause: CAUSE_NORMAL{ remoteAddress: /10.17.196.65 - to EX60-1

Screenshot #3 - Session sees this as a new p2p call, with EX60-1 connects to MCU. (I actually have seen a lot of IT conferences with just one endpoint connects to TS, maybe the same issue). 
Screenshot #4 - After >10 minutes, it backs to normal point-point calls between two endpoints

Having multiple calls reported is fine, but endpoints and MCU need be correct, plus there is no call b/t EX60-1 to MCU. 

Conditions:
EX configured to use UCM MRGL to host multipoint conference
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