From: sakthi somnath (smollin2000@yahoo.com)
Date: Sun Sep 30 2007 - 12:40:17 ART
I guess the selection criteria is correct. It has to
choose b/w the 2 EBGP routes 161.108.0.5 &
132.108.4.3. Here its going for the lowest BGP
routerID ?
Is my understanding correct ? Please let me know.
Thanks,
Sakthi
--- Rich Collins <nilsi2002@gmail.com> wrote:
> 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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