From mboxrd@z Thu Jan 1 00:00:00 1970 From: Manish Kathuria Date: Thu, 09 Feb 2006 14:34:32 +0000 Subject: Re: [LARTC] load balancing and failover Message-Id: <43EB5028.4030206@tuxspace.com> List-Id: References: <20060209115810.GA6970@tranquility.scriptkitchen.com> In-Reply-To: <20060209115810.GA6970@tranquility.scriptkitchen.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org Payal Rathod wrote: > Hi, > A friend of mine has 2 lines of 512kbps terminated in two Linux boxes. > He now want to remove those 2 boxes and have some device which will > loadbalance the two ISPs and also have a failover arrangement. But he > has agreed to give me a chance to do it on Linux for my own > satisfication. > Is this easy to do with lartc? How do I go about it exactly? I have > very less time to do it since his whole network will be done for that > time and I cannot afford to play for long time. Is it worth trying it > with lartc for academic sake atleast? > Can someone suggest some easy steps? > With warm regards, > -Payal > p.s. Is lartc.org down? You can try out implementing configuring a load balancing and failover system referring to the following documents: http://www.ssi.bg/~ja/nano.txt http://www.ssi.bg/~ja/dgd-usage.txt You will need to patch and recompile the linux kernel using the "routes" patch given at http://www.ssi.bg/~ja/#routes for dead gateway detection to work. The load balancing part works fine but dead gateway detection (and hence failover) does not work always. It works best when your first hop gateway is down but may or may not work when a subsequent hop is down. In a recent case, I observed that dead gateway detection and the failover was working very well when one ISP failed but did not happen when the other one went down. So you can try your luck here. -- Manish Kathuria http://www.tuxspace.com/ _______________________________________________ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc