[rbridge] IP Multicast groups/ layer 2 or layer 3?
riw at cisco.com
Tue Jan 9 06:45:28 PST 2007
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It seems like since we're really focusing on l2, we should just
advertise l2 addresses.
Radia Perlman wrote:
> When an RBridge R announces via IS-IS which IP multicast groups are
> reachable on R's directly
> attached links, should the groups be layer 3 or layer 2 addresses?
> If it's layer 3, then there will have to be separate announcements for
> IPv4 and IPv6 groups.
> If it's layer 2, then 32 IPv4 groups would map to the same layer 2
> multicast address (and I'm
> not sure what it is for IPv6).
> I don't care. The spec currently says layer 2, but there is a question
> in the spec asking if that's what
> we really want.
> rbridge mailing list
> rbridge at postel.org
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