[rbridge] IP Multicast groups/ layer 2 or layer 3?
Radia.Perlman at sun.com
Sun Jan 7 17:20:35 PST 2007
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.
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