From: Nikhil Engineer (ccienovice@gmail.com)
Date: Tue Apr 22 2008 - 04:31:10 ART
Hi Noor,
I think this is due to split horizon.
If you are advertising a route from one interface then you wont be able to
receive it from same interface.
Cheers,
Nikhil E.
On 4/22/08, Noor.Yousuf@shell.com <Noor.Yousuf@shell.com> wrote:
>
> Let me get clear..
>
> R3----EBGP---R1----IBGP-----R2----EBGP----R4
>
>
> from R3 I have advertised the network 200.200.200.0 in BGP
> no sync
> network 200.200.200.0 mask 255.255.255.0
> ip route 200.200.200.0 255.255.255.0 Null0
>
> I can see the network on R2 bgp table
> Now I have advertised the same network in R2
> no sync
> network 200.200.200.0 mask 255.255.255.0
> ip route 200.200.200.0 255.255.255.0 Null0
>
> As soon as I have advertised the network in R2 BGP, I cannot see the route
> coming from R1 in the BGP Table, I thought I should see both routes in BGP
> table but only one in Routing table.
>
> r2#SH IP BGP
> BGP table version is 8, local router ID is 2.2.2.2
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> internal,
> r RIB-failure, S Stale
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> *> 200.200.200.0 0.0.0.0 0 32768 i
>
> Can someone explains why?
>
> Thanks,
>
>
> Pass the CCIE in six weeks, Guaranteed!
> http://www.certscience.com/CCIE
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
Pass the CCIE in six weeks, Guaranteed!
http://www.certscience.com/CCIE
This archive was generated by hypermail 2.1.4 : Thu May 01 2008 - 08:25:51 ART