Problem with multicast music-on-hold

Unanswered Question

I am experiencing a problem with my multicast music-on-hold streams. It seems that all streams are sent to my branches and I am not sure why.

I am running sparse-dense pim.

I look in the IGMP group memberships and none of my moh streams are registered.

So I assume that the routers themselves must be notifying the DR that they want the MOH streams.

So I can tell and how can I prevent the routers from requesting unneeded streams?

I have this problem too.
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gogasca Sat, 06/23/2007 - 19:06

In CCM you may configure the MAX HOPS for MMOH in MOH server configuration.

Or create an ACL and multicast boundary in your WAN interfaces.

The following is an example configuration:

Router(config)# interface serial 0/0

Router(config-if)# ip multicast boundary 1

Router(config-if)# exit

Router(config)# access-list 1 deny

dgahm Sun, 06/24/2007 - 09:01


Does a show ip mroute count confirm that the multicast streams are being forwarded by the routers?

I have never seen this happen with sparse mode PIM, so unless you really need sparse-dense this might be another solution in addition to those suggested by Gonzalo.

Here is a good document for troubleshooting multicast issues:

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