From: Rich Collins (nilsi2002@gmail.com)
Date: Sun Sep 30 2007 - 11:25:13 ART
You could also show us some more information from:
sh ip bgp 7.7.7.0
On 9/29/07, Joseph Brunner <joe@affirmedsystems.com> wrote:
>
> Put a next-hop-self on all peers... then tell me who's preferred. I
> suspect
> an unreachable next-hop is leading to undesired results.
>
> -Joe
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> sakthi somnath
> Sent: Friday, September 28, 2007 11:10 PM
> To: ccielab@groupstudy.com
> Subject: BGP path selection
>
> Hi All,
>
> Could someone please explain the criteria of selection
> here. why is 1.1.1.1 not selected since it has a
> higher Local preference?
>
> N Next hop reachable
>
> W - highest weight
> L - Locally originated route
> L - Local Preference Highest
> A - Shortest AS Path
>
> O - Origin code I> E > ?
> M - Lowest MED
> N - Neighbor type EBGP over IBGP
> I - smallest IGP metric to Nexthop
>
> R1(1.1.1.1)----
> | |
> | |
> R2 -----|-----R4
> | |
> | R5--7.7.7.0
> R3
> |
> |
> 7.7.7.0
>
> - Only R1 and R2 are running IBGP, rest all run ebgp
> - R2 does not peer with R5
> - 7.7.7.0 is reachable via R3 as well as R5
>
> Status codes: s suppressed, d damped, h history, *
> valid, > best, i - internal,r RIB-failure
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight
> Path
>
> * 7.7.7.0/24 161.108.0.5 0 4 3 i
> * i 1.1.1.1 100 0 4 3 i
> *> 132.108.4.3 0 2 3 i
>
>
> Thanks,
> Sakthi
>
>
>
>
>
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