11-25-2008 12:51 PM - edited 03-13-2019 05:52 PM
Hello everyone, we have deployed a CCM at our main office and are using out p2p T1 for connectivity to our warehouse. The phones work fine and all VLANs are communicating just fine. We are running a 2811 router with a NM-ESW-16 module to handle switching. We have also implimented an Informacast server by Berbee. The problem we are having is the Multicast configuration on the phone connected to the NM-ESW-16. They get the text but no audio. Any help is appreciated.
JB
11-25-2008 01:00 PM
Try disabling IGMP snooping.
Jason
11-25-2008 01:25 PM
OK, tried that, no luck. Does anyone have a sample config using this module and Multicast?
11-25-2008 01:50 PM
Can you provide your config(s).
Thanks,
Jason
11-25-2008 02:28 PM
I will pull the config in the morning and post it. Thank you for your time.
Jason
12-01-2008 01:47 PM
12-01-2008 04:03 PM
Can you verify that your phones are getting a 10.10.20.x address?
Jason
12-02-2008 10:53 AM
Yes, they are receiving 10.10.20.x addresses. The Informacast server is on the other side of the T-1 link and the RP address is the interface on the router at the other side.
Jason
12-03-2008 03:17 AM
What does the output of 'sh ip pim nei' and 'sh ip pim int' look like from both sides of the WAN?
12-04-2008 09:36 AM
Jason, thank you so much for your help. When I looked at the 'sh ip pim int' command I noticed that on the router that is local to the informacast server the voice sub-interface did not have the 'ip pim sparse-dense-mode' command applied. The command was on the data sub-interface. I applied the command to the voice sub-interface and now it is working. Thank you very much for your time.
Jason
12-06-2008 05:42 AM
Awesome! Glad I could help. Multicast has to be one of my least favorite technologies to configure and maintain.
Jason
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