Date: Mon, 12 Sep 2005 11:50:46 +0200 From: =?ISO-8859-1?Q?Sten_Daniel_S=F8rsdal?= <lists@wm-access.no> To: Chuck Swiger <cswiger@mac.com> Cc: freebsd-isp@freebsd.org, aaron.glenn@gmail.com Subject: Re: VLAN interfaces on FreeBSD; performance issues Message-ID: <43254F76.4000505@wm-access.no> In-Reply-To: <43243677.6020707@mac.com> References: <ED8E7F5B-7E3F-40D8-8993-76E9AB8226F9@yfug.yumaed.org> <4322FDC4.8010609@mac.com> <18f601940509110230242e8bfc@mail.gmail.com> <43243677.6020707@mac.com>
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Chuck Swiger wrote: > 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. > A vlan should be a seen as a single nic. On other platforms, STP considers vlans as independant nics. But would it be multihoming if you are just bridging the vlans? I thought the essence of multihoming was multiple ip networks to which it was a member. -- Sten Daniel Sørsdal
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