From owner-freebsd-net@FreeBSD.ORG Thu May 15 18:24:17 2003 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 35F8E37B404 for ; Thu, 15 May 2003 18:24:17 -0700 (PDT) Received: from pit.databus.com (p70-227.acedsl.com [66.114.70.227]) by mx1.FreeBSD.org (Postfix) with ESMTP id E877243F85 for ; Thu, 15 May 2003 18:24:15 -0700 (PDT) (envelope-from barney@pit.databus.com) Received: from pit.databus.com (localhost [127.0.0.1]) by pit.databus.com (8.12.9/8.12.9) with ESMTP id h4G1OFiK011433; Thu, 15 May 2003 21:24:15 -0400 (EDT) (envelope-from barney@pit.databus.com) Received: (from barney@localhost) by pit.databus.com (8.12.9/8.12.9/Submit) id h4G1OF8g011432; Thu, 15 May 2003 21:24:15 -0400 (EDT) Date: Thu, 15 May 2003 21:24:15 -0400 From: Barney Wolff To: "Justin C. Sherrill" Message-ID: <20030516012415.GB10926@pit.databus.com> References: <49537.24.93.1.61.1053029897.squirrel@home.shiningsilence.com> <20030515213812.GA8905@pit.databus.com> <1051.192.168.0.251.1053039362.squirrel@home.shiningsilence.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1051.192.168.0.251.1053039362.squirrel@home.shiningsilence.com> User-Agent: Mutt/1.4.1i X-Scanned-By: MIMEDefang 2.32 (www . roaringpenguin . com / mimedefang) cc: freebsd-net@freebsd.org Subject: Re: load balance ordinary traffic X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 May 2003 01:24:17 -0000 On Thu, May 15, 2003 at 06:56:02PM -0400, Justin C. Sherrill wrote: > > This is unlikely to work with cable modems. You're already competing > > with your immendiate neighbors for a fixed pie of cable bandwidth. > > It'll work just fine; the shared cable line supplies far more bandwidth > than what several modems will eat, and this area is not oversubscribed. > Also, I have a mix of modems - some DOCSIS, some older proprietary > Motorola, which use different parts of the broadcast spectrum, and so do > not affect each other's bandwidth, directly. And all of these will work with the head end at once? Interesting. > > However, what you can't do is have > > a single TCP connection on a single local host use both external lines. > > How about multiple TCP connections on a single local host using multiple > lines? I know I could stick particular local machines to a particular > network gateway, but at that point I could just hook them up directly to > individual modems. You could enhance the ipfw code to allow matching bits within the source or dest port number, as is allowed now on ip addresses. > > That would require at a minimum cooperation from your ISP which they > > are most unlikely to provide. > > I work at my ISP. What's the cooperation bit? To use parallel links you'd need to run MPPP over PPPoE, on both ends. FreeBSD can do that, I believe. Can RR? -- Barney Wolff http://www.databus.com/bwresume.pdf I'm available by contract or FT, in the NYC metro area or via the 'Net.