> Le 3 nov. 2014 à 17:13, Ondrej Zajicek <[email protected]> a écrit : > On Mon, Nov 03, 2014 at 04:42:55PM +0100, Olivier Benghozi wrote: >> Firstly, in classical BGP implementations (but not in BIRD), for eBGP >> connections, router-id is never used as tie-break. Instead, route age is >> used (the oldest one wins) as tie-break. It avoids frequent route changes >> and probably improves a little routes distribution. >> You'd better use "prefer older on". >> >> Secondly, a radical solution is (for incoming prefixes): >> - upstream 1: match net ~ 0.0.0.0/1 and set MED at 1, set MED at 0 for >> everything else; >> - upstream 2: match net ~ 128.0.0.0/1 and set MED at 1, set MED at 0 for >> everything else. > > Note that you should use 'med metric' option in this case (if your > uplinks are from different ASes).
That's right, forgot to specify that, I always use deterministic and always compare med (med metric on, for BIRD) features on my networks :)
