Re: MPLS Problem

Assuming you are running OSPF between R1,R2 and R3, your Lo0 are not /32 but
OSPF will advertise them as /32.

So now you will have mismatch between the routing table, with /32 and the
LDP advertisements, which are with the original network mask of the Lo0.

*show mpls forwarding-table* command will show you that you don't have label
for the other PE Lo0 interface.

HTH,
Dan #13685 (RS/Sec/SP)
 The CCIE troubleshooting blog: http://dans-net.com

On Mon, Dec 20, 2010 at 10:17 AM, HEMANTH RAJ <hemanthrj_at_gmail.com> wrote:

> Hey This is my topoogy
>
>
> R1--------------------------R2-----------------------------R3
> | |
> | |
> | |
> R4 R5
>
>
> R1 an R3 is my PE and R4 and R5 are my customers I am forming MPBGP between
> R1 and R3 and all routes are exchanged between R4 and R5
> and all my imports r working fine
> but i am getting this following error
>
> %BGP-4-VPNV4NH_MASK: Nexthop 3.3.3.3 may not be reachable from neigbor
> 1.1.1.1 -^ not /32 mask
>
> but all my ldp neighbourships are up
> and i had done sh ip mpls ldp discovery det
> everythin is fine i can able to ping my transport address
> All the routes of R5 are in R4 and R1 routing table
>
> but R4 cannot ping R4 and also R1 cannot ping R5
>
> Pls anyone help
>
>
> --
> Problems arise because we talk,problems are not solved because we don't
> talk
> So good or bad talk to your affectionate one's freely.
>
> Yours Friendly,
> HP HEMANTH RAJ
> Cisco Systems Inc.
>
>
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>
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Received on Mon Dec 20 2010 - 11:31:12 ART