From: Andy Cole (Andy.Cole@foremostfarms.com)
Date: Wed Nov 21 2007 - 11:42:50 ART
In some cases you may need to change the Administrative distance in BGP
Router bgp xxxx
Bgp distance 20 ?? ?? You could try 20 60 60 and see what that does for
you,
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Chris Riling
Sent: Wednesday, November 21, 2007 12:47 AM
To: Mohamed, Liban [NTK]
Cc: vignesh sethuraman; ccielab@groupstudy.com
Subject: Re: RIB-failure
I believe "sh ip bgp rib-failure" will give you some information on your
particular case...
Chris
On Nov 21, 2007 12:48 AM, Mohamed, Liban [NTK]
<Liban.Mohamed@sprint.com>
wrote:
> Vignesh,
>
> When BGP tries to install the bestpath prefix into Routing
> Information Base (RIB) (for example, the IP Routing table), RIB might
> reject the BGP route due to any of these reasons:
>
> * Route with better administrative distance already present in IGP.
> For example, if a static route already exists in IP Routing table.
> * Memory failure.
> * The number of routes in VPN routing/forwarding (VRF) exceeds the
> route-limit configured under the VRF instance.
>
> In such cases, the prefixes that are rejected for these reasons are
> identified by r RIB Failure in the show ip bgp command output and are
> not advertised to the peers. This feature was first made available in
> Cisco IOS Software Release 12.2(08.05)T.
>
> So in your case you have better admin, hence you can ping, I don't
> think you need to be concern on this.
>
>
> Thanks,
>
> Liban Mohamed
> NTAC-IP
> Sprint/Nextel
> www.sprint.net
> liban.mohamed@sprint.com
> (W) 678-291-3438
> (PCS) 404-441-9701
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of vignesh sethuraman
> Sent: Wednesday, November 21, 2007 12:15 AM
> To: ccielab@groupstudy.com
> Subject: RIB-failure
>
> Hello,
>
> When i view the bgp table, am seeing RIB-failure in the output. But I
> am able to ping the address. could you please any 1 explain what is
> possible cause for this
>
> Sh ip bgp
>
> r> 152.1.125.0/24 152.1.123.1 0 100 0 (1000) i
> r 152.1.123.2 0 100 0
> (2000) i
> r> 204.12.1.0 152.1.37.7 0 100 0 (7000) i
>
> For eg:
>
> Rack1R3#sh ip bgp 152.1.125.0
> BGP routing table entry for 152.1.125.0/24, version 12
> Paths: (2 available, best #1, table Default-IP-Routing-Table,
> RIB-failure(17))
> Advertised to update-groups:
> 1 2
> (1000)
> 152.1.123.1 (metric 781) from 152.1.123.1 (150.1.1.1)
> Origin IGP, metric 0, localpref 100, valid, confed-external, best
> (2000)
> 152.1.123.2 (metric 781) from 152.1.123.2 (150.1.2.2)
> Origin IGP, metric 0, localpref 100, valid, confed-external
>
>
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