[rbridge] Multicast options
anoop.ghanwani at hp.com
Tue Feb 8 16:19:56 PST 2005
> My suspicion is that for layer 2 multicasts other than
> IP-derived ones,
> we have no choice
> but to do a), even though I think 802 is working on some IGMP-like
> thing, since we
> can't assume all endnodes will have implemented it.
IEEE 802.1D has had for a while now a protocol called
GMRP which limits the propagation of multicasts to segments
of the spanning tree where there are registered participants.
The protocol hasn't seen much deployment, since IGMP-snooping
seems to work well for most applications that are out there.
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