RIB failure in sh ip bgp

[mohAmed khAdr]

All,

I am running a confed lab.....only bgp...no any igp..

on sh ip bg I find 1 rib failure...I did a sh ip bg rib and I got this:

R1_AS100#sh ip bg rib

Network                          Next Hop                      RIB-failure   RIB-NH Matches

201.199.25.160/27        201.199.25.178              Higher admin distance              n/a

R1_AS100#

!

Here's the whole sh list:

!

R1_AS100#sh ip bg

BGP table version is 14, local router ID is 10.10.100.1

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

*> 10.10.100.1/32              0.0.0.0                  0         32768 i

*> 10.10.130.1/32             201.199.25.178       0         500 i

*> 10.10.140.1/32             201.199.25.178                         0 500 i

*> 10.10.150.1/32             201.199.25.178           0             0 500 i

*> 130.33.255.0/27           201.199.25.178                         0 500 i

*> 140.44.255.0/26           201.199.25.178                         0 500 i

*> 150.55.255.144/28        201.199.25.178           0             0 500 i

*> 172.20.1.0/28               201.199.25.178                         0 500 ?

*> 192.168.1.0/30             201.199.25.178                         0 500 ?

*> 192.168.1.4/30             201.199.25.178           0             0 500 ?

*> 201.199.24.0/25          0.0.0.0                  0         32768 i

r> 201.199.25.160/27       201.199.25.178           0             0 500 ?

!

R1_AS100#sh ip bg rib

Network            Next Hop                      RIB-failure   RIB-NH Matches

201.199.25.160/27  201.199.25.178     Higher admin distance              n/a

!

R1_AS100#sh ip int brie

Interface                  IP-Address      OK? Method Status                Protocol

FastEthernet0/0            201.199.25.179  YES manual up                    up 

FastEthernet0/1            201.199.24.1    YES manual up                    up 

Loopback0                  10.10.100.1     YES manual up                    up 

R1_AS100#

!

What higher AD ?

!

Anyone with better explanation?

Thx.

mohamed

[John Blakley · Accepted solution]

Mohamed,

RIB failures like this generally indicate that it's receiving a better path by some other means. You're advertising this network from another router, but it can't put this route in the table because it has a higher administrative distance than your locally connected network.

HTH,

John

[mohAmed khAdr]

John,

Thx...spot on! it's connected...it has  distance 0, metric 0

Thx again

[Nandan Mathure]

Hi!

Also paste output for : show ip route 201.199.25.160 & show ip bgp 201.199.25.160

Thanks,

Nandan