From owner-freebsd-questions@FreeBSD.ORG Fri Jun 10 12:34:11 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 31373106564A for ; Fri, 10 Jun 2011 12:34:11 +0000 (UTC) (envelope-from feenberg@nber.org) Received: from mail2.nber.org (mail2.nber.org [66.251.72.79]) by mx1.freebsd.org (Postfix) with ESMTP id DA4938FC0A for ; Fri, 10 Jun 2011 12:34:10 +0000 (UTC) Received: from nber7.nber.org (nber7.nber.org [66.251.72.41]) by mail2.nber.org (8.14.4/8.14.4) with ESMTP id p5ACY66R045539 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 10 Jun 2011 08:34:07 -0400 (EDT) (envelope-from feenberg@nber.org) Received: from localhost (feenberg@localhost) by nber7.nber.org (8.14.4/8.14.4/Submit) with ESMTP id p5ACY6Ih019423; Fri, 10 Jun 2011 08:34:06 -0400 X-Authentication-Warning: nber7.nber.org: feenberg owned process doing -bs Date: Fri, 10 Jun 2011 08:34:06 -0400 (EDT) From: Daniel Feenberg To: FreeBSD In-Reply-To: <20110610075943.497793ee@scorpio> Message-ID: References: <20110609005656.GA9183@thought.org> <15630_1307624948_4DF0C5F4_15630_82_1_D9B37353831173459FDAA836D3B43499BF89C4A2@WADPMBXV0.waddell.com> <20110609184829.GC33714@guilt.hydra> <20110609222807.GA34570@guilt.hydra> <20110610075943.497793ee@scorpio> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Anti-Virus: Kaspersky Anti-Virus for Linux Mail Server 5.6.39/RELEASE, bases: 20110610 #5487764, check: 20110610 clean Subject: Re: Long Day's Journey into X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Jun 2011 12:34:11 -0000 On Fri, 10 Jun 2011, Jerry wrote: > On Thu, 09 Jun 2011 17:37:14 -0700 > Chuck Swiger articulated: > >> On Jun 9, 2011, at 3:28 PM, Chad Perrin wrote: >>> In many cases, it's not even obvious which of the products I find >>> are suitable for building various types of network switches. Do >>> you know of any Webpages that might help me rectify my dearth of >>> understanding in this area? >> >> You can get an unmanaged 24-port 10/100/1000 switch for less than $10 >> per port, and a good managed switch for about $30 per port. >> >> A cheap quad-port GB NIC runs $200 or $50 per port; and one from >> Intel or Cisco which can actually run all of the ports near rated >> line speed is closer to $100 per port. You simply can't build a >> commodity PC using these and end up anywhere near the price point of >> a dedicated switch. > I wouldn't think the OP was interested in saving money, there are other reasons for building your own switch. For example, there is a famous article "Tricks you can do if your firewall is also a bridge": http://www.usenix.org/events/neta99/full_papers/limoncelli/limoncelli_html/ Dan Feenberg