A YANG Data Model for Flexi-Grid Optical Networks
draft-ietf-ccamp-flexigrid-yang-09

Document Type Active Internet-Draft (ccamp WG)
Authors Universidad de Madrid  , Daniel Burrero  , Daniel King  , Young Lee  , Haomian Zheng 
Last updated 2021-02-22
Replaces draft-vergara-ccamp-flexigrid-yang
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CCAMP Working Group                                  J. Lopez de Vergara
Internet-Draft                                               Naudit HPCN
Intended status: Informational                       D. Perdices Burrero
Expires: August 26, 2021                  Universidad Autonoma de Madrid
                                                                 D. King
                                                      Old Dog Consulting
                                                                  Y. Lee
                                                                 Samsung
                                                                H. Zheng
                                                     Huawei Technologies
                                                       February 22, 2021

           A YANG Data Model for Flexi-Grid Optical Networks
                   draft-ietf-ccamp-flexigrid-yang-09

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.

   The YANG data model defined in this document conforms to the Network
   Management Datastore Architecture (NMDA).

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 August 26, 2021.

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Copyright Notice

   Copyright (c) 2021 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Tree Diagram  . . . . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Prefixes in Data Node Names . . . . . . . . . . . . . . .   4
   4.  Example of Use  . . . . . . . . . . . . . . . . . . . . . . .   4
   5.  YANG Model (Tree Structure) for Flexi-Grid Topology . . . . .   6
   6.  The YANG Code for Flexi-grid topology . . . . . . . . . . . .  23
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  57
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  58
   9.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  58
   10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  59
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  60
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  60
     11.2.  Informative References . . . . . . . . . . . . . . . . .  61
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  62

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 slot widths, 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).  This technology increases both transport network
   scalability and flexibility, allowing the optimization of bandwidth
   usage.

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