[nsp] BGP Best Path Selection Algorithm
Gert Doering
gert at greenie.muc.de
Fri May 7 10:07:30 EDT 2004
Hi,
On Fri, May 07, 2004 at 09:38:35AM -0400, Tuc wrote:
> Is it using the one with the /17 because its more specific,
> correct? But where does it say it takes that into account? It seems like
> it talks about it per entry, but not between entries.
Exactly. Each individual prefix has a BGP best path selection, and
then BGP is *done* with it, and inserts the "best path" into the global
routing table (RIB).
In the RIB - no matter where the prefix actually came from - static,
BGP, OSPF, ... - it's always "longest match wins".
gert
--
Gert Doering
Mobile communications ... right now writing from * RIPE48 / Amsterdam *
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