All things related to multicast

[Alan Crosswell <>]

>There's no need to turn IGMP Snooping off. Theoretically, RGMP on the
>switch side is independent of IGMP Snooping, practically speaking,
>on the cat6k IGMP Snooping should always be enabled if you also have
>L3 routing for IP Multicast.


It's turned off on my dual-star L2 core 6509's that all the routers plug
in to.  When it was one, I was getting random disconnectivity caused I
think by it snooping IGMP router advertisements.  There are no hosts on
the L2 core 6509's.

I'll look at the draft.

Thanks.
/a