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Re: MPLS in IP

  • From: Robert Raszuk <raszuk@cisco.com>
  • Date: Fri, 14 Sep 2001 07:03:26 -0700
  • CC: mpls-ops@mplsrc.com, mpls@UU.NET
  • Organization: Signature: http://www.employees.org/~raszuk/sig/
  • Resent-Date: Fri, 14 Sep 2001 13:01:07 -0400
  • To: "Hemant P. Kelkar" <hemant@cyberspace.org>

Hemant,

> LDP can be used for signalling between non-adjacent LSRs.

Correct.

>  If two LSRs are
> connected to each other using the MPLS-in-IP, can we assume that the LDP
> runs smoothly ?

Yes.

> 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. 

> 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.

Rgs,
R.

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  • References:
    • MPLS in IP
      • From: "Hemant P. Kelkar" <hemant@cyberspace.org>