From: MANU mohan (cciemanu@rediffmail.com)
Date: Fri Mar 25 2005 - 15:11:40 GMT-3
Hi,
RIB failure is usually shown when we get a BGP route which is already
present in the routing table with a lower administrative distance.
Here R2 ,
R3 ,& R4 ,all are getting R1's loopback through OSPF.But R3 & R4 are getting
also via IBGP.Since administrative distance of OSPF is 110 and that of BGP is
200,it is showing a RIB failure.
There won't be any issue with IBGP
connection through EBGP because peering sessions rely only on TCP.As far as
you have reachability to your peering addreses you can form peers.Thanks.
Manu
On Fri, 25 Mar 2005 ccie zeng wrote :
>HI:
>I have following topology:
>
>R1---fr----R2---fr----R3----fr----R4
>
>All routers running OSPF, R1&R2
area 5, R2&R3 area 1, R3&R4 area0.
>Loopback address on every router can be
reached by every router.
>
>R3, R4 and R1 are in AS100(R3 does not have
physcial connection to
>R1), R2 in AS 65555, R1 can not peer with R4, R2
peered with R1 and
>R3, they all peered with loopback address. advertise
loopback address
>of R1 into BGP. Could anyone tell me why I see "RIB
Failure" for that
>route on R3 and R4 in "show ip bgp"? Actually I am not
quite sure how
>to configure in this scenario where IBGP (R3 and R1)
connection is
>through EBGP connection.
>
>Thanks
>
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