[120411] in North American Network Operators' Group

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Routing to multiple uplinks

daemon@ATHENA.MIT.EDU (rodrick brown)
Fri Dec 18 19:47:30 2009

From: rodrick brown <rodrick.brown@gmail.com>
To: "nanog@nanog.org list" <nanog@nanog.org>
Date: Fri, 18 Dec 2009 19:46:42 -0500
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

This may be slightly off topic however I have a very unique situation  
where I need to provide two diverse paths to a major stock exchange.  
Each host may either use route A or B for any given reason to access  
this particular exchange using two distinct routers and target address.

The applicatiOn running on these hosts must only see/use one target  
address this needs to be transparent as possible. NIC bonding/teaming  
on the host side isn't a viable solution because of the latency  
overhead same goes for vrrp/hsrp.

I believe my only option here is to setup multiple default routes with  
a preferred path of some sort. This seems to be possible using ip  
route2 on Linux.

This just seems wrong on many levels and I thought I would post here  
because I know there is something obvious I'm missing.
Please clue me in.

Thanks.

Sent from my iPhone 3GS.


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