From owner-freebsd-stable Tue Aug 18 21:36:23 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id VAA17825 for freebsd-stable-outgoing; Tue, 18 Aug 1998 21:36:23 -0700 (PDT) (envelope-from owner-freebsd-stable@FreeBSD.ORG) Received: from obie.softweyr.com ([204.68.178.33]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id VAA17814; Tue, 18 Aug 1998 21:36:16 -0700 (PDT) (envelope-from wes@softweyr.com) Received: from obie.softweyr.com (zaphod.softweyr.com [204.68.178.35]) by obie.softweyr.com (8.8.8/8.8.8) with SMTP id WAA05848; Tue, 18 Aug 1998 22:37:15 -0600 (MDT) (envelope-from wes@softweyr.com) Date: Tue, 18 Aug 1998 22:37:15 -0600 (MDT) Message-Id: <199808190437.WAA05848@obie.softweyr.com> Subject: Re: Intel EtherExpress Pro 10/100B network collisions From: Wes Peters To: stephen@farrell.org, gpalmer@FreeBSD.ORG Cc: tom@uniserve.com, voland@plab.ku.dk, freebsd-stable@FreeBSD.ORG Reply-To: Wes Peters In-Reply-To: <22730.903487827@gjp.erols.com> References: <22730.903487827@gjp.erols.com> X-Priority: 3 (Normal) X-Mailer: BeatWare Mail-It 1.6 X-BeOS-Platform: Intel or clone Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by hub.freebsd.org id VAA17820 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG My hidden microphone recorded Gary Palmer (gpalmer@FreeBSD.ORG) saying: % stephen farrell wrote in message ID % <87af51bz66.fsf@couatl.uchicago.edu>: % > Note that full-duplex can also SLOW your network down. I don't % > understand this, and am too looking for answers. However, I switched % > a 100+ to full-duplex and went from 10Mbps -> 10bps transfer rates to % > a sparc/sol2.5 box on 10baseT LAN (though connections off the LAN were % > normal). Clearly some care needs to be taken in how to configure this % > card. % % This normally only happens on poor (read: cheap, low quality) % switches. In tests here, full duplex operation doesn't decrease % performance. We use Catalyst and `Extreme' 100bTX switches. Hasn't happened in my testing either. We use Xylan OmniSwitch and OmniStack, with 100Base-TX connections to desktop machines and ATM 622 Mbps connections to the backbone *and* the Sun Ultra servers. My FreeBSD machine with onboard Intel Pro 100+ moves pretty quickly on this network, even if it is only a 200 MMX. ;^) -- "Where am I, and what am I doing in this handbasket?" Wes Peters Softweyr LLC http://www.softweyr.com/~softweyr wes@softweyr.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message