netdev - Re: bridge: Only flood unregistered groups to routers

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Message-Id: <20110624.175347.1335501634665889751.davem@davemloft.net>
Date:	Fri, 24 Jun 2011 17:53:47 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	herbert@...dor.hengli.com.au
Cc:	netdev@...r.kernel.org
Subject: Re: bridge: Only flood unregistered groups to routers

From: Herbert Xu <herbert@...dor.hengli.com.au>
Date: Thu, 23 Jun 2011 20:39:12 +0800

> bridge: Only flood traffic for unregistered groups to routers
> 
> The bridge currently floods packets to groups that we have never
> seen before to all ports.  This is not required by RFC4541 and
> in fact it is not desirable in environment where traffic to
> unregistered group is always present.
> 
> This patch changes the behaviour so that we only send traffic
> to unregistered groups to ports marked as routers.
> 
> The user can always force flooding behaviour to any given port
> by marking it as a router.
> 
> Note that this change does not apply to traffic to 224.0.0.X
> as traffic to those groups must always be flooded to all ports.
> 
> Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>

Applied, thanks.
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