informatique:cisco:bgp
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informatique:cisco:bgp [2012/07/12 13:09] – [Load Sharing] pteu | informatique:cisco:bgp [2013/10/14 20:44] (current) – external edit 127.0.0.1 | ||
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network 10.10.10.0 mask 255.255.255.0 | network 10.10.10.0 mask 255.255.255.0 | ||
+ | =====Détermination du meilleur chemin===== | ||
+ | cf : BGP Best Path Selection Algorithm | ||
+ | * highest WEIGHT : c'est un paramètre propriétaire Cisco, pas toujours/ | ||
+ | * highest LOCAL_PREF : par défaut = 100 | ||
+ | * locally originated via a //network// or // | ||
+ | * shortest AS_PATH | ||
+ | * lowest origin type (IGP < EGP < INCOMPLETE) | ||
+ | * lowest multi-exit discriminator (MED) : uniquement si les next-hop appartiennent au même AS | ||
+ | * prefer eBGP over iBGP paths | ||
+ | * path with the lowest IGP metric to the BGP next hop | ||
+ | * When both paths are external, prefer the path that was received first (the oldest one) | ||
+ | * Prefer the route that comes from the BGP router with the lowest router ID | ||
+ | * Prefer the path that comes from the lowest neighbor address. | ||
=====Configuration avancée===== | =====Configuration avancée===== | ||
informatique/cisco/bgp.1342098557.txt.gz · Last modified: 2013/10/14 20:52 (external edit)