From owner-freebsd-questions Fri Dec 13 19:48:18 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CA69337B401 for ; Fri, 13 Dec 2002 19:48:16 -0800 (PST) Received: from mail.seekingfire.com (coyote.seekingfire.com [24.72.10.212]) by mx1.FreeBSD.org (Postfix) with ESMTP id 03A4F43EC2 for ; Fri, 13 Dec 2002 19:48:16 -0800 (PST) (envelope-from tillman@seekingfire.com) Received: from blues.seekingfire.prv (blues.seekingfire.prv [192.168.23.211]) by mail.seekingfire.com (Postfix) with ESMTP id CE0464B for ; Fri, 13 Dec 2002 21:48:09 -0600 (CST) Received: (from tillman@localhost) by blues.seekingfire.prv (8.11.6/8.11.6) id gBE3mo210285 for freebsd-questions@FreeBSD.ORG; Fri, 13 Dec 2002 21:48:50 -0600 Date: Fri, 13 Dec 2002 21:48:50 -0600 From: Tillman To: FreeBSD Mailing List Subject: Re: Hubs and switches (was: uninformed qstn...) Message-ID: <20021213214850.D9342@seekingfire.com> References: <20021213060718.GA8054@tao.thought.org> <20021214034131.GH503@wantadilla.lemis.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20021214034131.GH503@wantadilla.lemis.com>; from grog@FreeBSD.ORG on Sat, Dec 14, 2002 at 02:11:31PM +1030 X-Urban-Legend: There is lots of hidden information in headers Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Sat, Dec 14, 2002 at 02:11:31PM +1030, Greg 'groggy' Lehey wrote: > I've seen little difference. But DON"T BUY A HUB! Buy a switch > instead. They'll give you better performance, and they hardly cost > any more. Great advice. It looks like Cisco has even stopped listing hubs for sale - layer two switching seems to firmly in control these days :-) > I have three switches in my network: a Cisco 2900 (24 ports), a > Netgear FS105 (5 ports) and a D-Link DSS-8+ (8 ports), in rapidly > decreasing order of cost. I've never had any trouble with any of > them. It's possible that the cheap switches might have trouble with > sustained throughput: an 8 port 100 Mb/s switch can theoretically be > confronted with a load of 800 Mb/s. I believe the D-Link can do this > speed, though I can't find the docco. No 100 Mb/s hub will have a > bandwidth of more than 100 Mb/s, however, and even that is limited by > collisions. It's even worse than that. With full duplex being common, that switch could theoretically have to cope with 1600Mb/s. For $50, the fact that they do so fairly reliably is amazing. - Tillman -- Page xxviii: Live with Unix long enough and you will change. You will become more creative, and you will come to understand the spirit of creation in others. - Harley Hahn, _The Unix Companion_ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message