ADSM-L

Re: Auto-negotiate setting for NIC's

2000-09-15 05:43:48
Subject: Re: Auto-negotiate setting for NIC's
From: Richard Sims <rbs AT BU DOT EDU>
Date: Fri, 15 Sep 2000 05:43:55 -0400
>     Over time I've seen posts on this listserv about not using
>auto-negotiate for network interface cards and hard coding the
>line speed like 100mbit full duplex.  They use auto-negotiate on
>all of our Compaq Windows NT servers here and can't help but
>wonder, based on posts on this listserv, whether our server NIC's
>are really running at 100mbit full duplex.  I asked one of our NT
>admins to check one of our servers. They used Comaq's Insight
>Manager software which showed the NICS at the correct speed.
>Could it be lying?  Can any of you that have had problems with
>auto-negotiate, even better with Compaq servers, share your
>experiences?

Jeff - Your NT admin verified that the speed was 100 Mb, but what
       about duplex?  It's not the speed setting that causes the
problem with Auto Negotiate, but rather duplex mismatch.  That's
what causes the interface to choke under load.
   Richard Sims, BU
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