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Date:      Sun, 11 Sep 2005 09:51:51 -0400
From:      Chuck Swiger <cswiger@mac.com>
To:        aaron.glenn@gmail.com
Cc:        freebsd-isp@freebsd.org
Subject:   Re: VLAN interfaces on FreeBSD; performance issues
Message-ID:  <43243677.6020707@mac.com>
In-Reply-To: <18f601940509110230242e8bfc@mail.gmail.com>
References:  <ED8E7F5B-7E3F-40D8-8993-76E9AB8226F9@yfug.yumaed.org> <4322FDC4.8010609@mac.com> <18f601940509110230242e8bfc@mail.gmail.com>

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Aaron Glenn wrote:
> On 9/10/05, Chuck Swiger <cswiger@mac.com> wrote:
>> You cannot truthfully multihome a machine with a single NIC.
> 
> Why not?

Because you cannot put one NIC into two genuinely distinct layer-2 collision 
domains.  Spanning Tree Protocol won't recognize a single NIC as a potential 
connection or loop, depending.

-- 
-Chuck



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