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From: "Ted Mittelstaedt" <tedm@toybox.placo.com>
To: "Peter Risdon" <peter@circlesquared.com>,
	"Chris Knipe" <savage@savage.za.org>
Date: Mon, 21 Feb 2005 03:48:42 -0800
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cc: freebsd-questions@freebsd.org
Subject: RE: high latency
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> -----Original Message-----
> From: owner-freebsd-questions@freebsd.org
> [mailto:owner-freebsd-questions@freebsd.org]On Behalf Of Peter Risdon
> Sent: Monday, February 21, 2005 3:31 AM
> To: Chris Knipe
> Cc: freebsd-questions@freebsd.org
> Subject: Re: high latency
> 
> 
> On Mon, 2005-02-21 at 11:52 +0200, Chris Knipe wrote:
> > Hi,
> > 
> > I have 4 FreeBSD Servers connected to a Cisco 2950 all doing 
> inter-VLAN 
> > routing.  Everything is working right, but one server is 
> getting absurdly 
> > high latency through the VLANs.
> 
> [...]
> 
> > Now, the problematic box is running a RealTek card,
> 
> Ugh. You don't say which one, but I just cured a prob with nfs by
> replacing a brand new Realtek card with an old digital NIC that was
> lying around. Not for the first time, I vow never to use Realtek cards
> again.
> 

Realteks seem to have a problem detecting and setting up for the correct
speed/duplex.  (The 10/100 versions, that is)  If you leave them in AUTO
negotiation mode they only work right if connected to a 10/100 switch.
Otherwise if you have problems they work fine if you hard code the
speed/duplex in the /etc/rc.conf file.

Ted