[j-nsp] Resolving BGP routes using LDP tunnels

[Abhishek Verma]

Sure Armin .. I will have the IGPs running between all the routers!

Thanks

On 7/13/06, Armin Arh <armin at schlund.de> wrote:
> Hi,
>
> this should work.
> Of course you should have an IGP configured like OSPF or ISIS.
> Then LDP computes labels for all IGP routes, hop by hop.
>
> R2 receives then a MPLS packet from R3 with a label
> that points towards R1. R2 then forwards it
> to R1 without looking into the IP header.
>
> bye,
>        Armin
>
> On Thu, 13.07.2006, 17:18:38 +0530, Abhishek Verma wrote:
> > Hi,
> >
> > I have a doubt with using BGP and it recursively resolving the
> > next-hops using MPLS tunnels.
> >
> > R1 -- R2 -- R3
> >
> > I am running LDP between R1, R2 and R3 and R1 is aware of R3's
> > loopback address to mpls label binding because of LDP.
> >
> > Now, i am running BGP between R1 and R3. There are some routes
> > advertised by R3 to R1, with R1's NEXT_HOP.
> >
> > Is it possible for R1 to use the labelled path from R1 to R3 when
> > recursively resolving the next-hops for the BGP learnt routes.
> >
> > I know that this happens when there exists an RSVP tunnel from R1 to
> > R3. My question is that will this also work for LDP exchanged labels?
> >
> > Thanks,
> > Abhishek.
> > _______________________________________________
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> > http://puck.nether.net/mailman/listinfo/juniper-nsp
> >
>
> --
> Armin Arh
> Schlund + Partner AG
>
>
>