Dual Homed BGP for failover

Tue Jan 18 19:12:18 UTC 2011

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