Regarding Rib-Failure (next-hop mismatch)

Unanswered Question
Jul 22nd, 2007
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Hi All ,

While seeing a route in BGP it is showing Rib-Failur . Can anyone put some light on i t. The snapshot is given bellow.

Router#sh ip bgp v v test_vrf

BGP routing table entry for 12641:20772:, version 228642

Paths: (2 available, best #2, table test_vrf, RIB-failure(2) - next-hop mismatch)

Advertised to update-groups:


65535, imported path from 12641:20851: (metric 24) from (

Origin IGP, metric 50, localpref 100, valid, internal

Community: 64514:25

Extended Community: RT:12641:9509

Originator:, Cluster list:,

mpls labels in/out nolabel/700

65535, imported path from 12641:20860: from (

Origin IGP, metric 100, localpref 100, weight 100, valid, external, best

Community: 64514:25

Extended Community: RT:12641:9509


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purohit_810 Mon, 07/23/2007 - 04:22
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This situation occurs when a path has a link to a deleted BGP table entry, and then the memory for the deleted entry is reused for a new table entry of which the prefix may not match with the importing entry.


Dharmesh Puorhit

ashutosh_pateriya Mon, 07/23/2007 - 04:38
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Hi Dharmesh,

Thnx for ur reply,Actually I got the solution . I was importing the RTs which were used by someone else and having same IPs( I've changed my RT Import and Export and its Solved .

Thanks Once again .

By the way I am Ashutosh Pateriya working for Infosys Tech , Pune .. Nice meeting you Mr. Purohit .




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