From: wim.depauw@getronics.com
Date: Wed Oct 17 2007 - 11:51:43 ART
Hi,
I have the following setup
R4------------R5
| |
| |
R2-----------
R4 & R2 are in AS11124 and R5 is in AS 851
I configured a confederation between the routers with a confederation id 599.
R5 is creating a summary route.
When I check my routes on R4 I would think that R5 will be the preferred router but it seems to be R2
R4#sho ip bgp 50.0.0.0
BGP routing table entry for 50.0.0.0/8, version 19348
Paths: (2 available, best #1, table Default-IP-Routing-Table)
Advertised to update-groups:
2
(851), (aggregated by 599 40.40.40.8)
40.40.40.8 (metric 4) from 40.40.40.2 (40.40.40.2)
Origin IGP, metric 0, localpref 100, valid, confed-internal, atomic-aggregate, best
(851), (aggregated by 599 40.40.40.8)
40.40.40.8 (metric 4) from 40.40.40.5 (40.40.40.5)
Origin IGP, metric 0, localpref 100, valid, confed-external, atomic-aggregate
Is it so that a confed-internal route is preferred above an confed-external route ? I didn't find a lot of documentation about , the only thing I found in TCP/IP routing volumes stated that an ebgp route is preferred above a confed route and this one is preferred above an ibgp route.
gr
wim
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