The MPLS WG Archive

["himanshu shah" <hshah@rcn.com>]

Not sure If I have the whole question (because I don't have
the original email).

However, guessing on the question below, I would say that
one can use LDP signaled PW as control plane and use
RSVP-TE signaled tunnel for data plane.

It is a local matter though. As long as both PEs have
established RSVP-TE tunnel based on (LDP) Peer's IP address,
each PE can map the PW on the RSVP-TE tunnel whose endpoint
is remote PE peer (tunnel must be PHP though).
There is no need to notify the other what type of tunnel
he should use, either.

Note that I am not advocating running LDP within RSVP-TE
tunnel. And in this respect, control plane and data plane
could very well be disjoint.

You may want to look at draft-shah-pwe3-control-protocol-extension-00.txt
where I have defined QOS TLV where each PE can optionally
signal what tunnel type other should use.


/himanshu



-----Original Message-----
From: owner-mpls@uu.net [mailto:owner-mpls@uu.net]On Behalf Of Eric
Rosen
Sent: Tuesday, March 25, 2003 10:04 AM
To: Nurit Sprecher
Cc: 'Shahram Davari'; 'Alia Atlas'; mpls@uu.net; Mustapha Aissaoui
(E-mail)
Subject: Re: Distributing Labels for PWs within an LSP TE Tunnel



Nurit> I do look for  a way to bind the (LDP) signaled  PWs to the (RSVP-TE)
Nurit> signaled transport tunnel LSP, in a way that both PEs know about it.

There is no way to do this using the protocols as currently defined.