Re: [squid-users] Setting up system for use of multiple access paths

From: Henrik Nordstrom <henrik@dont-contact.us>
Date: Fri, 17 Mar 2006 14:57:22 +0100

fre 2006-03-17 klockan 20:32 +1000 skrev Michael D. Setzer II:
> My College has a T-1 connection that has been having some major
> problems, being down for 7 hours and 20 minutes the other day. I have
> had a bridge to a DSL line that provided a backup for Internet access
> thru a Fedora machine with a squid server. Just got a Cable line with a
> 4.2Mb connection that is now also connected to this machine, but now
> it uses the Cable as the default path. Ideally, I would like to setup a
> system in what all the various internet bandwidth could be used.

How I would do it:

 * Single server connected to all three

 * Policy routing configured such that packets with the source IP
corresponding to each ISP is routed to their gateway.

 * Some scripts to monitor each link, and add/remove them as default
gateways depending on their status..

 * Multi-path routing enabled in the kernel, allowing for multiple
default routes and load sharing among them.

See http://lartc.org/howto/lartc.rpdb.multiple-links.html for details.

With this in place Squid will run happily, completely ignorant to how
many links you have and instead letting the OS sort it out.

Regards
Henrik

Received on Fri Mar 17 2006 - 06:57:30 MST

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