From owner-freebsd-hackers Sun Jul 18 11:42:41 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from dt011n65.san.rr.com (dt011n65.san.rr.com [204.210.13.101]) by hub.freebsd.org (Postfix) with ESMTP id DA17B14DCA for ; Sun, 18 Jul 1999 11:42:30 -0700 (PDT) (envelope-from Doug@gorean.org) Received: from gorean.org (master [10.0.0.2]) by dt011n65.san.rr.com (8.8.8/8.8.8) with ESMTP id LAA06997; Sun, 18 Jul 1999 11:40:52 -0700 (PDT) (envelope-from Doug@gorean.org) Message-ID: <37921FB4.B01C6F86@gorean.org> Date: Sun, 18 Jul 1999 11:40:52 -0700 From: Doug Organization: Triborough Bridge & Tunnel Authority X-Mailer: Mozilla 4.6 [en] (Win98; I) X-Accept-Language: en MIME-Version: 1.0 To: Tim Baird Cc: freebsd-hackers@freebsd.org Subject: Re: poor ethernet performance? References: <3.0.2.32.19990716231622.007e2100@storm.digital-rain.com> <3.0.2.32.19990717015406.0095f670@storm.digital-rain.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Tim Baird wrote: > I hope everyone is benefitting by these simple facts.... *chuckle* "Simple facts.." You sound like my physics professor. I for one am benefitting very much from the discussion. I got hired at my current job as a software person, but I have a background in hardware so I try and make it into the NOC every excuse I get (promotability, don't you know). It always helps if sound like I have a vague idea what I'm talking about. :) I just made up my first ethernet cables the other day, and learned an interesting tidbit that I'm sure is beyond elementary to most of you, but may benefit someone else. What I was told is that the reason Cat 5 cable is so much more efficient is that each of the 4 pairs of wire is twisted at a different rate. This helps reduce the possibility of frequency synchronization for the EM fields the pairs create. Soaking it in, Doug To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message