Hello fellow, CCAMPers and PCEers,
a revised draft on wavelength switched optical networks entitled:
"Framework for GMPLS and PCE Control of Wavelength Switched Optical
Networks" is now available at:
http://www.ietf.org/internet-drafts/draft-bernstein-ccamp-wavelength-switched-01.txt
The intention is to have this document adopted as a working group draft
at either CCAMP or PCE and use it to guide the various "solution" drafts
that are being generated with respect to wavelength switched optical
networks.
*Abstract: *
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.
Regards
Greg B, Young L. and Wataru I.
--
===================================================
Dr Greg Bernstein, Grotto Networking (510) 573-2237
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