nanog mailing list archives

Re: Dual Homed BGP for failover


From: Jack Bates <jbates () brightok net>
Date: Tue, 18 Jan 2011 13:12:18 -0600



On 1/18/2011 1:00 PM, William Herrin wrote:
IMO, that would be a mistake. Taking significantly less than a full
table severely limits your options for balancing traffic between the
links.


It should also be noted that taking a full table, doesn't mean you have to use the full table. Apply filters to smaller routes or long ASPATHs that you don't want, and then assign preferences, communities, prepends, etc as necessary for the routes you actually accept.

This means your sync time is longer and you'll have more updates, but it will still keep the local routing table much lower.


Jack


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