A Yang Data Model for Optical Impairment-aware Topology
draft-ietf-ccamp-optical-impairment-topology-yang-03

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Last updated 2020-03-09
Replaces draft-lee-ccamp-optical-impairment-topology-yang
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CCAMP Working Group                                               Y. Lee
Internet-Draft                          SKKU (Sung Kyun Kwan University)
Intended status: Standards Track                                V. Lopez
Expires: September 10, 2020                                   Telefonica
                                                           G. Galimberti
                                                                   Cisco
                                                               D. Beller
                                                                   Nokia
                                                           March 9, 2020

        A Yang Data Model for Optical Impairment-aware Topology
          draft-ietf-ccamp-optical-impairment-topology-yang-03

Abstract

   In order to provision an optical connection through optical networks,
   a combination of path continuity, resource availability, and
   impairment constraints must be met to determine viable and optimal
   paths through the network.  The determination of appropriate paths is
   known as Impairment-Aware Routing and Wavelength Assignment (IA-RWA)
   for WSON, while it is known as Impairment-Aware Routing and Spectrum
   Assigment (IA-RSA) for SSON.

   This document provides a YANG data model for the impairment-aware TE
   topology in optical networks.

Status of This Memo

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

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   This Internet-Draft will expire on September 10, 2020.

Lee, et al.            Expires September 10, 2020               [Page 1]
Internet-Draft    Opt. Impairment-Aware Topo YANG Model       March 2020

Copyright Notice

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Tree Diagram  . . . . . . . . . . . . . . . . . . . . . .   4
     1.3.  Prefixes in Data Node Names . . . . . . . . . . . . . . .   4
   2.  Reference Architecture  . . . . . . . . . . . . . . . . . . .   4
     2.1.  Control Plane Architecture  . . . . . . . . . . . . . . .   5
     2.2.  Transport Data Plane  . . . . . . . . . . . . . . . . . .   6
     2.3.  OMS Media Links . . . . . . . . . . . . . . . . . . . . .   6
       2.3.1.  Optical Tributary Signal (OTSi) . . . . . . . . . . .   7
       2.3.2.  Optical Tributary Signal Group (OTSiG)  . . . . . . .   7
       2.3.3.  Media Channel (MC)  . . . . . . . . . . . . . . . . .   8
       2.3.4.  Media Channel Group (MCG) . . . . . . . . . . . . . .   9
     2.4.  Amplifiers  . . . . . . . . . . . . . . . . . . . . . . .  10
     2.5.  Transponders  . . . . . . . . . . . . . . . . . . . . . .  11
     2.6.  WSS/Filter  . . . . . . . . . . . . . . . . . . . . . . .  11
     2.7.  Optical Fiber . . . . . . . . . . . . . . . . . . . . . .  11
     2.8.  ROADM Node Architectures  . . . . . . . . . . . . . . . .  12
       2.8.1.  Integrated ROADM Architecture with Integrated Optical
               Transponders  . . . . . . . . . . . . . . . . . . . .  12
       2.8.2.  Integrated ROADMs with Integrated Optical
               Transponders and Single Channel Add/Drop Interfaces
               for Remote Optical Transponders . . . . . . . . . . .  13
       2.8.3.  Disaggregated ROADMs Subdivided into Degree,
               Add/Drop, and Optical Transponder Subsystems  . . . .  14
       2.8.4.  Optical Impairments Imposed by ROADM Nodes  . . . . .  15
   3.  YANG Model (Tree Structure) . . . . . . . . . . . . . . . . .  17
   4.  Optical Impairment Topology YANG Model  . . . . . . . . . . .  20
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  53
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  53
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