You can accomplish this by setting `med metric on` in your BGP protocols, and set bgp_med in the import policy to affect which route is selected when localpref and as-path-length are the same. Keenan Quoting Alarig Le Lay <alarig@swordarmor.fr>:

Hi,

I have an AS (204092) with two upstreams (174 and 198507). On some cases, the AS path is the same on both peers. I would like to use 198507 over 174 only in this situation (so, no localpref).

If I read the documentation correctly, I have take of « Prefer routes with lower internal distance to a boundary router. ». But I don’t see where I can set this internal distance.

Does anybody have any clue about that?

Thanks, -- alarig