From: Alexei Monastyrnyi (alexeim@orcsoftware.com)
Date: Thu Nov 23 2006 - 15:52:33 ART
Hi.
In your case RIB failure most probably reflects that router knows the
prefix via both BGP and IGP with IGP AD lower than BGP. You most
probably have iBGP learned route or used a back-door to make eBGP
learned route less preferable. This route is not installed in IP RIB but
exist in BGP table.
You can find this URL useful.
http://www.cisco.com/warp/public/459/bgpfaq_5816.shtml#twenty-three
HTH
A.
haducbinh wrote:
> Hi GS!
>
>
>
> I do not understand what is RIB_failure in BGP?
>
> R2 and R4 run BGP and EIGRP, subnet 22.22.22.0/24 is advertise via EIGRP
> from R2 to R4!
>
> And then, i try to advertise it via BGP from R2 to R4, too
>
>
>
> This is result that I see on R4:
>
> R4#sh ip route
>
> .
>
> 22.0.0.0/24 is subnetted, 1 subnets
>
> D 22.22.22.0 [90/2297856] via 172.16.124.2, 01:23:03, Serial0/1/0.124
>
>
>
> R4#sh ip bgp rib-failure
>
> Network Next Hop RIB-failure RIB-NH
> Matches
>
> 22.22.22.0/24 172.16.124.2 Higher admin distance
> n/a
>
>
>
> R4#sh ip bgp
>
> BGP table version is 11, local router ID is 172.16.104.1
>
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> internal,
>
> r RIB-failure, S Stale
>
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
>
>
> Network Next Hop Metric LocPrf Weight Path
>
> r>i22.22.22.0/24 172.16.124.2 0 300 0 i
>
>
>
> Please explain this!
>
> Thanks!
>
>
>
> HaDucBinh
> Mail: <mailto:haducbinh@vnpro.org> haducbinh@vnpro.org or
> haducbinh@gmail.com
>
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