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Date:      Mon, 21 Nov 2005 15:21:33 +0100
From:      Jon Otterholm <jon.otterholm@ide.resurscentrum.se>
To:        Brian Candler <B.Candler@pobox.com>
Cc:        freebsd-net@freebsd.org
Subject:   Re: arp-proxy
Message-ID:  <1132582893.1411.21.camel@localhost.localdomain>
In-Reply-To: <20051121130046.GA22502@uk.tiscali.com>
References:  <20051110124903.GB67086@uk.tiscali.com> <1131629107.878.22.camel@localhost.localdomain> <20051117135738.GH5197@obiwan.tataz.chchile.org> <1132239963.819.18.camel@localhost.localdomain> <20051117152357.GA8209@uk.tiscali.com> <1132242723.819.45.camel@localhost.localdomain> <20051117162748.GA8417@uk.tiscali.com> <20051117173535.GF97528@gremlin.foo.is> <20051121112856.GB21985@uk.tiscali.com> <1132577145.1411.20.camel@localhost.localdomain> <20051121130046.GA22502@uk.tiscali.com>

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I think they do that when using standard 802.1Q, but for some reason
theey don't when running QinQ...

/Jon

On Mon, 2005-11-21 at 13:00 +0000, Brian Candler wrote:
> On Mon, Nov 21, 2005 at 01:45:44PM +0100, Jon Otterholm wrote:
> > The reason why I have to proxy-arp mac between VLANs is that one mac
> > cannot end up mapped to more than one port in the switches FDB. If they
> > do - we get something called "host-flapping" on IOS-language.
> 
> Or put it another way - Cisco haven't properly virtualised their VLANs so
> that they have separate forwarding tables.



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