A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Framework for IP/MPLS-GMPLS interworking in
support of IP/MPLS to GMPLS migration
Author(s) : K. Shiomoto, et al.
Filename : draft-shiomoto-ccamp-mpls-gmpls-interwork-fmwk-00.txt
Pages : 19
Date : 2005-10-12
MPLS to GMPLS migration is the process of evolving MPLS-TE-based
control plane to GMPLS-based control plane. An appropriate migration
strategy is selected based on various factors including the service
provider's network deployment plan, customer demand, available
network equipment implementation, etc.
In the course of migration several interworking cases may exist where
MPLS and GMPLS devices or networks must coexist. Such cases may arise
as parts of the network are converted from MPLS protocols to GMPLS
protocols, or may occur if a lower layer network is made GMPLS-
capable (from having no MPLS or GMPLS control plane) in advance of
the migration of the higher layer packet switched layer.
Since GMPLS signaling and routing protocols are different from the
MPLS protocols, in order for MPLS and GMPLS to interwork, we need
mechanisms to compensate for the difference between MPLS and GMPLS.
This document provides a framework for MPLS and GMPLS interworking to
allow transition from MPLS to GMPLS. We discuss issues, models,
migration scenarios, and requirements. Solutions for MPLS and GMPLS
interworking will be developed in companion documents.
We should note that both MPLS and GMPLS protocols can co-exist as
"ships in the night" without any interworking issue. This document is
mainly addressing interworking to allow transition from MPLS to
GMPLS.
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