netdev - Re: [PATCH] bridge: mask forwarding of IEEE 802 local multicast groups

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Message-ID: <20110812154545.79d8313f@nehalam.ftrdhcpuser.net>
Date:	Fri, 12 Aug 2011 15:45:45 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Ed Swierk <eswierk@...switch.com>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] bridge: mask forwarding of IEEE 802 local multicast
 groups

On Fri, 12 Aug 2011 15:37:54 -0700
Ed Swierk <eswierk@...switch.com> wrote:

> I'm using elaborate combinations of bridges, tunnels and vlans to make
> remote switches many hops away appear as though they're locally
> connected to a virtual machine. In this application the bridges are
> just used to forward traffic between a pair of interfaces. I need the
> bridge to behave as much like a dumb 2-port hub as possible,
> forwarding LLDP frames that 802.1d-compliant bridges normally drop.

If you turn off STP that is what it does right now. It forwards STP
and 802.1X frames. The patch was only related to turning on STP
and still expecting 802.1X frames to be forwarded (in violation of
the spec).
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