I am troubleshooting a Vocera issue where someone broadcasts to a group of folks and the (Multicast group) Audio is intermittent, slow to start or not coming through at all. I have attempted to setup a Wireshark capture in our controller cluster to capture the data path traffic to the Vocera Badge I am working with.
In the capture I have tried sending to a IP destination and the local filesystem and the results are the same. I am simply unable to see the Multicast traffic in the capture when the badge I am using is receiving audio and has joined the multicast group in in a Vocera broadcast. I can however see the RTP traffic stream in the capture when I use the same badge to transmit to the Vocera broadcast group.
What am I missing to see the RTP multicast traffic when receiving traffic from a Multicast group? I know the traffic is there I just cannot see those packets in the capture nor can I reassemble it because it is missing.
We are running 8.6.0.5 code on 7220 controllers managed by a MM. I have attached a photo of the Badge when receiving a working stream, you can see the join and leave of the group but no RTP traffic in between.
Any insight or tips would be appreciated.
Thanks!
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Christopher Calhoun
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