Framework and Requirements for GMPLS-Based Control of Flexi-Grid Dense Wavelength Division Multiplexing Networks
RFC 7698, “Framework and Requirements for GMPLS-Based Control of Flexi-Grid Dense Wavelength Division Multiplexing Networks”, is an Informational document published in November 2015 by O. Gonzalez de Dios, R. Casellas, F. Zhang, X. Fu, D. Ceccarelli, I. Hussain. The canonical text is published by the RFC Editor.
Abstract
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.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
The canonical text of RFC 7698 is hosted at rfc-editor.org. Available in TXT,HTML.
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