From: Jian Gu (guxiaojian@gmail.com)
Date: Tue Nov 25 2008 - 19:34:32 ARST
RSVP TE and LDP will both serve the purpose for establishing label switching
path between two end points (typically /32 BGP route ID). In a typical MPLS
VPN deployment scenario, you can either use RSVP or LDP to signal LSP
between PEs for MPLS-VPN transport.
The only scenario you need to enable LDP on RSVP TE tunnel interface is that
you have islands of RSVP core, and your application is using LDP for LSP
signalling and your application traffic needs to traverse those RSVP-TE
"islands".
Without knowing your topology and configuration, it is hard to indentify
where the problem is.
On Tue, Nov 25, 2008 at 12:36 PM, mreiks <marakalas.molefe@gmail.com> wrote:
> Hi
>
> I am finding it diffucult to understand whether RSVP TE can be run instead
> of LDP/TDP. I am able to establish the tunnel with TE but when I disable
> LDP
> on the interfaces, my VPN sites cannot ping each other, until such time I
> enable LDP. Is this normal? With MPLS VPNs do we always have to run either
> LDP/TDP and have RSVP also if we want TE?
>
> Tx.
>
>
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