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Re: Redundant Routes, BGP with MPLS provider
From: Walter Keen <walter.keen () rainierconnect net>
Date: Fri, 31 Aug 2012 08:12:57 -0700 (PDT)

Assuming the MPLS provider is a single company, and uses BGP at all sites to talk to your routers, I would simply set 
the MED (in cisco terms) to reflect what you desire. 
http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094934.shtml 


This assumes however that the failover you require is based on the router at the primary site going down. I understand 
it's for DR, but if you have your routing equipment on a UPS/Generator at the primary site, it's something to think 
about. DR may mean more than just your link or site going down, for some people it goes as far as the server farm going 
down (but the router still up). Something to think about. 




----- Original Message -----

From: "Christopher Morrow" <morrowc.lists () gmail com> 
To: "Wesley Tribble" <WTribble () sterneagee com> 
Cc: nanog () nanog org 
Sent: Friday, August 31, 2012 7:05:17 AM 
Subject: Re: Redundant Routes, BGP with MPLS provider 

On Thu, Aug 30, 2012 at 2:17 PM, Tribble, Wesley 
<WTribble () sterneagee com> wrote: 

-Prepend the routes from the DR site so that they will have a longer AS-path than the Primary location 

yes 



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