[j-nsp] Dealing with multihomed customer BGP primary/backup links

[Clinton Work]

On the primary BGP session I would set Local-pref 150 and send MED 100
for example.  
On the backup BGP session, set local-pref 100 and send MED 150.   

The local-pref will set the preferred route in your network to use the
primary BGP session.   The MED should influence the customer to use the
primary link as their preferred route as well.  Savvy customers can
easily override the MED value, but it should work for the majority of
the customers.  


On Wed, Jul 13, 2016, at 02:36 AM, Cydon Satyr wrote:
> What would be the optimal way to deal with following scenario.
> 
> The customer of ours has a primary bgp connection over primary link on
> one
> router, and a backup bgp connection (up) on backup link on our other
> router. The customer may or may not (usually not) terminate both
> primary/backup links on the same router.
> 
> We want to stop customer using backup link at all as long as the primary
> link is up. Since we police both primary and backup link, customer can
> just  load balance and use both links.