A YANG Data Model for Flexi-Grid Optical Networks
draft-ietf-ccamp-flexigrid-yang-07

Document Type Active Internet-Draft (ccamp WG)
Authors Universidad de Madrid  , Daniel Perdices  , Daniel King  , Young Lee  , Haomian Zheng 
Last updated 2020-09-22
Replaces draft-vergara-ccamp-flexigrid-yang
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CCAMP Working Group                                  J. Lopez de Vergara
Internet-Draft                            Universidad Autonoma de Madrid
Intended status: Informational                       D. Perdices Burrero
Expires: March 26, 2021                                           Naudit
                                                                 D. King
                                                      Old Dog Consulting
                                                                  Y. Lee
                                                                 Samsung
                                                                H. Zheng
                                                     Huawei Technologies
                                                      September 22, 2020

           A YANG Data Model for Flexi-Grid Optical Networks
                   draft-ietf-ccamp-flexigrid-yang-07

Abstract

   This document defines a YANG module for managing flexi-grid optical
   networks.  The model defined in this document specifies a flexi-grid
   traffic engineering database that is used to describe the topology of
   a flexi-grid network.  It is based on and augments existing YANG
   models that describe network and traffic engineering topologies.

   A partner document defines a second YANG module for flexi-grid media
   channels, i.e., the paths from source to destination through a number
   of intermediate nodes.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on March 26, 2021.

Lopez de Vergara, et al. Expires March 26, 2021                 [Page 1]
Internet-Draft               Flexi-Grid YANG              September 2020

Copyright Notice

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   document authors.  All rights reserved.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Tree Diagram  . . . . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  Prefixes in Data Node Names . . . . . . . . . . . . . . .   4
   5.  Main Components of the Flexi-grid Topology  . . . . . . . . .   5
   6.  Example of Use  . . . . . . . . . . . . . . . . . . . . . . .  11
   7.  YANG Model (Tree Structure) for Flexi-grid topology . . . . .  13
   8.  The YANG Code for Flexi-grid topology . . . . . . . . . . . .  30
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  64
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  65
   11. Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  65
   12. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  66
   13. References  . . . . . . . . . . . . . . . . . . . . . . . . .  67
     13.1.  Normative References . . . . . . . . . . . . . . . . . .  67
     13.2.  Informative References . . . . . . . . . . . . . . . . .  68
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  69

1.  Introduction

   The flexible grid (flexi-grid) optical network technology defined by
   the International Telecommunication Union Telecommunication
   Standardization Sector (ITU-T) and documented in Recommendation
   G.694.1 [G.694.1] and G.872 [G.872] provides an enhanced 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
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