From: Chuck Larrieu (chuck@xxxxxxxxxxxxx)
Date: Sat Feb 17 2001 - 18:33:15 GMT-3
I haven't had a chance to check this out myself. But a couple of guys in the
office were working on a remote rack, and posed this apparent discovery.
Hope the ASCII art survives and hope I am remembering this correctly.
Fred - you still monitor this list? If so, correct me if I am wrong) :
|-------Router 2---|----other AS
0ther AS----Router_1 | |
|-------Router 3---|-
| |
|-------Router 4----|
this AS has two paths into the same remote AS. BGP learns the router to
Other AS through both router 1 and router 2.
The route that is reflected to all routers is that of router 1's path to
Other AS, even though in some cases, router two is the better exit point
via the IGP routes )
We could not come up with a rationale for this. Artifact? Other issues with
igp distribution into BGP? Maybe some filters?
Is what they were seeing the result of some design spec within BGP or
Cisco's implementation of route reflection?
Anyone else seen this?
Chuck
A long shot at passing is better than no shot.
Right now that's all I got to get me through,
So I gotta believe!
( paraphrased from Kathy Baille / Baille and the Boys
a song from several years ago )
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:28:51 GMT-3