FOR DUMPS SAKE‎ > ‎

BGP notes

posted 11 Apr 2016, 14:10 by DR Labs
TCP 179

Best Path Selection  

N WLLA OMNI

N = next hop reachability
W = weight, bigger is better  (Local router)
L = local preference, bigger is better  (AS / non transitive) 
L = locally injected preferred over BGP learned  (network / aggregate )
A = AS path length, shorter is better 
O = origin, (igp is better than egp is better than incomplete)  I IGP - E Exterior Gateway Protocol (EGP), ? INCOMPLETE.
M = MED, lower is better  (route suggestion)
N = neighbor type, ebgp better than ibgp (Prefer eBGP over iBGP paths)
I = IGP metric to BGP next-hop, lower is better
-Closest IGP neighbor
-Oldest learned (external)
-Lowest Cluster / Router ID
-Lowest neighbour Address





Comments