From: dara tomar (wish2ie@gmail.com)
Date: Wed Nov 21 2007 - 02:29:22 ART
*Hi Vignesh,
*
*When BGP tries to install the
bestpath<http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094431.shtml>prefix
into Routing Information Base (RIB), 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.
HTH,
Regards,
Dara*
On Nov 21, 2007 10:37 AM, vignesh sethuraman <sethuvignesh@yahoo.co.in>
wrote:
> Hello,
>
> When i view the bgp table, am seeing RIB-failure in the output, 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
>
>
> ---------------------------------
> Chat on a cool, new interface. No download required. Click here.
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
-- Regards, Dara
This archive was generated by hypermail 2.1.4 : Sat Dec 01 2007 - 06:37:30 ART