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Title : Framework for GMPLS and PCE Control of Wavelength Switched Optical Networks
Author(s) : G. Bernstein, et al.
Filename : draft-bernstein-ccamp-wavelength-switched-01.txt
Pages : 33
Date : 2007-9-14
This memo provides a framework for applying Generalized Multi-
Protocol Label Switching (GMPLS) and the Path Computation Element
(PCE) architecture to the control of wavelength switched optical
networks (WSON). In particular we provide control plane models for
key wavelength switched optical network subsystems and processes. The
subsystems include wavelength division multiplexed links, tunable
laser transmitters, reconfigurable optical add/drop multiplexers
(ROADM) and wavelength converters.
Lightpath provisioning, in general, requires the routing and
wavelength assignment (RWA) process. This process is reviewed and the
information requirements, both static and dynamic for this process
are presented, along with alternative implementation scenarios that
could be realized via GMPLS/PCE and/or extended GMPLS/PCE protocols.
This memo does NOT address optical impairments in any depth and
focuses on topological elements and path selection constraints that
are common across different WSON environments. It is expected that a
variety of different techniques will be applied to optical
impairments depending on the type of WSON, such as access, metro or
long haul.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-bernstein-ccamp-wavelength-switched-01.txt
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