Date: Wed, 16 Apr 2008 13:37:26 +0300 From: "M.S. Motanu" <miauris@gmail.com> To: freebsd-hackers@freebsd.org Subject: Multipath routing - failover version Message-ID: <1dd0a33d0804160337o3090ac08g4a2cbc3be0d58b19@mail.gmail.com>
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I've ported the multipath routing patch by Ed Tanzer <tanzer@dsm.fordham.edu <https://mail.stsnet.ro/squirrelmail/src/compose.php?send_to=tanzer%40dsm.fordham.edu>>; for FreeBSD 4.8-STABLE to FreeBSD 6.1-RELEASE. The patch modifies the kernel and the userland programs netstat and route so that for the same destination it is possible to specify two or more different gateways (paths). Switching between different paths is done by the kernel based on the link state of the interface associated with the gateway. This way when can achieve a level of redundancy at the link level (this is not a routing protocol!). The original patch did not have failover in mind, it addressed the problem of load balancing. But the same results can be achieved with this patch with minor changes to the code. The patch files and installation instructions can be downloaded from:http://miauris.freehostia.com/mpath/mpath.tar.gz Comments are welcomed!
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