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Date:   Sat, 27 Jan 2018 01:44:21 +0100
From:   Joachim Nilsson <>
Subject: [bridge] IGMP/MLD snooping per port and per VLAN support


longtime lurker, first time poster.  In the "new" VLAN aware bridge,
is there anyone else except me (and possibly Cumulus) thinking about
per port *and* per VLAN support for IGMP/MLD snooping in the bridge?

By that I mean bridge support for per port and per VLAN querier, and
group membership, which the current bridge implementation, as far as
I can see, unfortunately is lacking.

Westermo, where I work, has invested heavily in DSA/switchdev/bridge
and we are *extremely* happy with it all (awesome work ppl!), and we
are very interested in helping out with multicast work in the bridge
so any answers to this post are most welcome :)


	My colleague Tobias is of the opinion that full support for
	this will, like STP/RSTP, be politely showed the way to user
	space by the senior netdev devs. So yeah, that's what we're
	considering atm., but I thought it would be good idea to at
	the very least post the question here first.
	Yes, openvswitch supports this *perfectly*, which is a bit
	annoying, but also in userspace and only if I also run sth
	like pimd/mrouted to act as querier (which most ppl don't
	really need.) on their magical internal/local CPU port.

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