From: Jack Heney (jheneyccie@xxxxxxxxxxx)
Date: Fri Nov 10 2000 - 17:12:31 GMT-3
I was playing around with ccbootcamp lab 8 last night as a sort of refresher
(2 days and counting), and I ran into a little bit of trouble with the
filtering when redistributing BGP and OSPF into each other at multiple
points. Is there any sort of rule I can try to abide by in terms of getting
mutli-router, mutual redistribution to work right? I have been trying to
bet my mind around exactly where problems can pop up, and I can't see the
need for filtering....Given the following example:
A B C D E F
---------R1---------R2---------R3---------R4---------R5---------
BGP1 BGP2 BGP2 BGP3
R2, R3, and R4 are running OSPF on networks C and D
R2 and R4 are redistributing connected into OSPF (so B,C,D,E are in OSPF)
R1 injects A into BGP, R5 injects F into BGP
R2 and R4 are redistributing OSPF into BGP and BGP into OSPF
Does this example require any filtering when redistributing, and if so, why?
My gut feeling is that it does, but when I set it up, I can't spot any
loops/sub-optimal routing.
Thanks,
Jack
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