Multicast

[londint]

Hi

Please I need to know if I have to conifure ip pim sparse-dense-mode on all the VLANs in my environment for multicast routing to work. Presently, I have it only configured on VLANs which I know should be participating in multicasting.

Thanks

[johnbroadway]

It all depends how you configure your Multicast routing & RP's.

Here's a doc which explains it well:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipr_c/ipcpt3/1cfmulti.htm

John

[paul driver]

Hello

If you have L3 vlans you DONT want to receive MC then no need to apply it.