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Date: Thu, 16 Mar 2006 14:46:03 -0500
From: Brad <brad@comstyle.com>
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Subject: Re: problem with Marwell gigabit performance
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On Thu, Mar 16, 2006 at 07:52:13PM +0100, OxY wrote:
> media: Ethernet autoselect (1000baseTX <full-duplex,flag0,flag1>)
> 
> ----- Original Message ----- 
> From: "Pertti Kosunen" <pertti.kosunen@pp.nic.fi>
> To: "Sten Daniel S?rsdal" <lists@wm-access.no>
> Cc: "OxY" <oxy@field.hu>; <freebsd-net@freebsd.org>
> Sent: Thursday, March 16, 2006 7:18 PM
> Subject: Re: problem with Marwell gigabit performance
> 
> 
> >Sten Daniel S?rsdal wrote:
> >>You might have a duplex mismatch problem.
> >
> >Isn't there only full-duplex in 1000baseTX? 

No. Some network cards cannot be hardcoded to a particular speed/duplex
at all and can only do auto, but there is definitely half-duplex in the
1Gbps spec. 10Gbps Ethernet has finally dropped half-duplex.