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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-01.txt
Pages : 24
Date : 2006-3-2
The migration from Multiprotocol Label Switching (MPLS) to
Generalized MPLS (GMPLS) is the process of evolving an MPLS traffic
engineered (TE) control plane to a GMPLS control plane. An
appropriate migration strategy can be selected based on various
factors including the service provider's network deployment plan,
customer demand, available network equipment implementation,
operational policy, etc.
In the course of migration, several interworking cases may exist
where MPLS and GMPLS devices or networks must coexist. During the
migration process, standard interworking functions are needed to
allow graceful deployment of GMPLS technologies while keeping
existing IP/MPLS networks unaffected.
Since GMPLS signaling and routing protocols are different from the
MPLS control protocols, in order for MPLS and GMPLS to interwork, we
need mechanisms to compensate for the differences between MPLS and
GMPLS. This document provides a landscape of techniques, practices
and an overview of interworking between MPLS and GMPLS in support of
IP/MPLS to GMPLS migration, which is also beneficial for graceful
deployment of GMPLS technologies into existing IP/MPLS networks. We
discuss issues, models, migration scenarios, operation, and
requirements.
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