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Cell Relay Retreat>MPLS WG Archive>month:2001-Sep> msg00342



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MPLS tunneled in IP

  • From: Eric Osborne <eosborne@cisco.com>
  • Date: Tue, 25 Sep 2001 01:03:22 -0400
  • Cc: giles@packetexchange.net, kameswara.rao@ericsson.com, Henry Bibb <HBibb@hatterasnetworks.com>, "'mpls@uu.net'" <mpls@UU.NET>
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On Tue, Sep 25, 2001 at 09:19:32AM +0530, Mareline Sheldon wrote:
> > > 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 ?

I think so.  Where in the post that you've quoted do you see 'Traffic
Engineering'?




eric

> 
> Mary
> 
> 
> 
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