From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Sun, 10 May 2009 11:50:12 -0700
From: Stephen Hemminger <shemminger@vyatta.com>
Message-ID: <20090510115012.4c842f87@nehalam>
In-Reply-To: <a62fd16c0905100637n1107c9degd8212e9e649cba4e@mail.gmail.com>
References: <a62fd16c0905100637n1107c9degd8212e9e649cba4e@mail.gmail.com>
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Subject: Re: [Bridge] Linux Bridge Forward STP?
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To: Steven Williamson <steven43126@gmail.com>
Cc: bridge@lists.linux-foundation.org

On Sun, 10 May 2009 14:37:56 +0100
Steven Williamson <steven43126@gmail.com> wrote:

> Hi,
> 
> If I have 2 switches already using RSTP with only a single link between
> them. Then add a redundant link using a Linux bridge with STP turned off.
> Will the Linux bridging code forward the RSTP BPDU's so the other switches
> realize there is a new path to the root bridge, and hopefully block one of
> the ports ?
> 
> 
> The exact secnario is an ethernet segment spanning 2 datacenter's via a
> fibre link. We'd like to add redundancy using a linux bridge (bridging to a
> VPN tap device and routing over the net) but have since discoverd the Linux
> code does not support RSTP yet.
> 
> p.s
> 
> Many thanks to the developers of the Linux briding code!
> 
> Regards
> Steven Williamson.

Turn on STP in Linux bridge in your case. Otherwise Linux bridge will
eat the RSTP BPDU's

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