Subject: RE: MPLS in IP

From: Shahram Davari <[email-masked]>
Date: Fri, 14 Sep 2001 08:11:57 -0700

Hi Robert,
 
> > If we can't run RSVP/CR-LDP for resource reservation, on 
> this path, how to
> > do resource reservation ?
> 
> What resource reservation are you refering to ? Even with RSVP/CRLDP
> there are no resource reservation in the data plane.

Why not? In an MPLS network you could have BW reservation for both Intserv and Diffserv style traffic. Please review:

http://www.ietf.org/internet-drafts/draft-ietf-mpls-diff-ext-09.txt
 
> 
> > A last concern, how to support multipoint to point 
> connections using this
> > approach ?
> 
> Besically as soon as your IP tunneling can support point to multipoint
> interfaces LDP will be able to establish it's directed 
> sessions there as
> well. Unfortunately I don't know any vendor shipping p2mtp IP tunnels
> today.

I think Hemant was asking about mp-2-p, not p-2-mp.

Yours,
-Shahram