From owner-freebsd-mobile Sat Oct 19 14:38:46 2002 Delivered-To: freebsd-mobile@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1D6BD37B401 for ; Sat, 19 Oct 2002 14:38:45 -0700 (PDT) Received: from wonkity.com (wonkity.com [63.93.4.4]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2AAA543E88 for ; Sat, 19 Oct 2002 14:38:44 -0700 (PDT) (envelope-from wblock@wonkity.com) Received: from wonkity.com (localhost.wonkity.com [127.0.0.1]) by wonkity.com (8.12.1/8.11.6) with ESMTP id g9JLcguF072962; Sat, 19 Oct 2002 15:38:42 -0600 (MDT) (envelope-from wblock@wonkity.com) Received: from localhost (wblock@localhost) by wonkity.com (8.12.1/8.12.1/Submit) with ESMTP id g9JLcfNe072959; Sat, 19 Oct 2002 15:38:42 -0600 (MDT)?g (envelope-from wblock@wonkity.com) Date: Sat, 19 Oct 2002 15:38:41 -0600 (MDT) From: Warren Block To: Harald Hanche-Olsen Cc: freebsd-mobile@FreeBSD.ORG Subject: Re: 100 Mbit/s is (a lot) slower than 10 Mbit/s In-Reply-To: <20021019210804P.hanche@math.ntnu.no> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-mobile@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Sat, 19 Oct 2002, Harald Hanche-Olsen wrote: > The reason is obvious enough: Snooping on the ethernet traffic reveals > that packets are lost, with frequent timeouts and waits for > retransmissions as a result. > > So why don't I just use 10 Mbit/s then? Well, at home that is what I > do, since I can tell my stationary PC to run its interface at 10 > Mbit/s, and the Linksys will automatically follow suit. But at work > we recently upgraded our network to 100 Mbit/s, and hence the > difficulty: The ed driver has no provision (it seems) for setting the > speed. (Maybe there is no way to ask the card to pick the lower > speed.) As others have mentioned, it sounds like a duplex problem. Half duplex is 'ifconfig ed0 media 100baseTX'. Full duplex is 'ifconfig ed0 media 100baseTX mediaopt full-duplex'. If you still want to experiment with speed: 'ifconfig ed0 media 10baseT/UTP' (assuming UTP wiring rather than coax). -Warren Block * Rapid City, South Dakota USA To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message