From owner-freebsd-questions@FreeBSD.ORG Wed Nov 9 17:37:12 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org 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 5DD9516A41F for ; Wed, 9 Nov 2005 17:37:12 +0000 (GMT) (envelope-from mailing-lists@msdi.ca) Received: from mail02.msdihosting.net (ntweb04.msdihosting.net [66.199.153.9]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7F95B43D55 for ; Wed, 9 Nov 2005 17:37:11 +0000 (GMT) (envelope-from mailing-lists@msdi.ca) Received: from ian.msdi.ca ([24.201.183.241]) by mail02.msdihosting.net ((iPlanet Messaging Server 5.2 HotFix 1.21 (built Sep 8 2003))) with SMTP id B3Q02104 for ; Wed, 09 Nov 2005 12:37:31 -0500 Message-Id: <6.2.3.4.2.20051109122614.0466c9a8@pop.msdi.ca> X-Mailer: QUALCOMM Windows Eudora Version 6.2.3.4 Date: Wed, 09 Nov 2005 12:37:04 -0500 To: freebsd-questions@freebsd.org From: Ian Lord Mime-Version: 1.0 X-DEBUG: 1 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Web Balancing with multicast 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: Wed, 09 Nov 2005 17:37:12 -0000 Hi, is there an application to load balance web traffic using multicast on freebsd ? We have web servers currently running NLB (network load balancing) on windows 2003 that works this way (simplified for clarity): We have server A that listen on ip 10.10.10.11 We have server A that listen on ip 10.10.10.12 Both server also listen to "virtual ip" 10.10.10.10. That ip is in fact a multicast ip so that a request going to that ip is received by both server. Windows load balancing then decide which of the 2 machines process the request. It also adapts itself if a server is added or removed from the cluster (manually or on a failure) I saw there is a way with freebsd to add a machine in front of the cluster that will direct the traffic and load balance the traffic between a group of computers, but I'm looking for a solution similar to windows load balancing that doesnt require a dedicated machine in front of the cluster. If someone knows of an app that could do that, I would appreciate if you could give me a url for the software in question... Please don't mention solutions that require the use of a dedicated machine in front of the cluster. If there is no way to do this on freebsd, I will simply use a cisco load balancer in front of my freebsd servers Thanks a lot