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Cell Relay Retreat>MPLS WG Archive>month:2001-Sep> msg00341



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MPLS tunneled in IP

  • From: "Mareline Sheldon" <marelines@yahoo.com>
  • Date: Tue, 25 Sep 2001 09:19:32 +0530
  • Cc: "Henry Bibb" <HBibb@hatterasnetworks.com>, "'mpls@uu.net'" <mpls@UU.NET>
  • X-Apparently-From: <marelines@yahoo.com>

> > Hi,
> >    What is the application of tunneling mpls over ip ? Since LSP's
cannot be
> > established through a non-mpls domain and the egress lsr's anyway
perform
> > the transformation from mpls->ip .
> > Kamesh.
>
> But with MPLS over IP (or over GRE) LSPs *can* be established through a
> non-mpls domain.  Use targetted LDP sessions ("extended discovery") or
> BGP to exchange labels and then tunnel MPLS packets in IP or GRE to get
> them from one device to the other...

This much is okay .. but if you are using IP then how do you ensure that
your TE specifications are met .. and if this is not ensured then the very
use of MPLS is challenged !
am i missing something ?

Mary



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