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Date: Wed, 05 Aug 2009 20:41:33 +0300
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Cc: Gary Gatten <Ggatten@waddell.com>, freebsd-questions@freebsd.org
Subject: Re: Network card Intel and 802.1P tag
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Andrey O.Sokolov wrote:
>> Is the vlan hardware processing enabled?
> 
> How I can enable this processing?
> 

"ifconfig em0 vlanhwtag" enables vlan processing in hw
"ifconfig em0 -vlanhwtag" disables vlan processing in hw

Maybe one these will work correctly without the zeroing effect.

Perhaps off topic, but why are you interested in priority
tags, since FreeBSD will silently ignore them?