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RFC 7698
Title: Framework and Requirements for GMPLS-Based
Control of Flexi-Grid Dense Wavelength Division
Multiplexing (DWDM) Networks
Author: O. Gonzalez de Dios, Ed.,
R. Casellas, Ed.,
F. Zhang, X. Fu,
D. Ceccarelli,
I. Hussain
Status: Informational
Stream: IETF
Date: November 2015
Mailbox: oscar.gonzalezdedios@telefonica.com,
ramon.casellas@cttc.es,
zhangfatai@huawei.com,
fu.xihua@stairnote.com,
daniele.ceccarelli@ericsson.com,
ihussain@infinera.com
Pages: 42
Characters: 89787
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-ccamp-flexi-grid-fwk-07.txt
URL: https://www.rfc-editor.org/info/rfc7698
DOI: http://dx.doi.org/10.17487/RFC7698
To allow efficient allocation of optical spectral bandwidth for
systems that have high bit-rates, the International Telecommunication
Union Telecommunication Standardization Sector (ITU-T) has extended
its Recommendations G.694.1 and G.872 to include a new Dense
Wavelength Division Multiplexing (DWDM) grid by defining a set of
nominal central frequencies, channel spacings, and the concept of the
"frequency slot". In such an environment, a data-plane connection is
switched based on allocated, variable-sized frequency ranges within
the optical spectrum, creating what is known as a flexible grid
(flexi-grid).
Given the specific characteristics of flexi-grid optical networks and
their associated technology, this document defines a framework and
the associated control-plane requirements for the application of the
existing GMPLS architecture and control-plane protocols to the
control of flexi-grid DWDM networks. The actual extensions to the
GMPLS protocols will be defined in companion documents.
This document is a product of the Common Control and Measurement Plane Working Group of the IETF.
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It does not specify an Internet standard of any kind. Distribution of
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