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CCAMP Working Group                                              Y. Lee
                                                               D. Dhody
                                                                 Huawei
Internet Draft                                                 V. Lopez
Intended status: Standard Track                              Telefonica
                                                                D. King
                                                        U. of Lancaster
                                                                B. Yoon
                                                                    ETRI
                                                              R. Vilalta
                                                                    CTTC

Expires: December 27, 2017                                June 27, 2017

                     A Yang Data Model for WSON Tunnel


                 draft-lee-ccamp-wson-tunnel-model-01.txt


Abstract

   This document provides a YANG data model for WSON TE tunnel.



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 December 27, 2017.

Copyright Notice



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   Copyright (c) 2017 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
   (http://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 to this document.  Code Components extracted from this
   document must 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. YANG Model (Tree Structure)....................................2
   3. TE Tunnel Model for WSON.......................................3
   4. Security Considerations........................................7
   5. IANA Considerations............................................7
   6. Acknowledgments................................................7
   7. References.....................................................8
      7.1. Normative References......................................8
      7.2. Informative References....................................8
   8. Contributors...................................................8
   Authors' Addresses................................................8

1. Introduction

   This document provides a YANG data model for WSON tunnel model. The
   YANG model described in this document is a WSON technology-specific
   Yang Tunnel model based on the information model developed in
   [RFC7446] and the two encoding documents [RFC7581] and [RFC7579]
   that developed protocol independent encodings based on [RFC7446].

   This document augments the generic TE tunnel model [TE-Tunnel].


2. YANG Model (Tree Structure)

   module: ietf-te-wson
     augment /te:te/te:tunnels/te:tunnel/te:config:
       +--rw wavelength-assignment?   identityref
       +--rw selected-frequency?      decimal64
       +--rw channel-spacing?         decimal64
       +--rw resource-pool* [resource-pool-id]


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          +--rw resource-pool-id    uint32
          +--rw pool-state?         boolean
          +--rw matrix-interface* [in-port-id]
             +--rw in-port-id     wson-interface-ref
             +--rw out-port-id?   wson-interface-ref
     augment /te:te/te:tunnels/te:tunnel/te:state:
       +--ro wavelength-assignment?   identityref
       +--ro selected-frequency?      decimal64
       +--ro channel-spacing?         decimal64
       +--ro resource-pool* [resource-pool-id]
          +--ro resource-pool-id    uint32
          +--ro pool-state?         boolean
          +--ro matrix-interface* [in-port-id]
             +--ro in-port-id     wson-interface-ref
             +--ro out-port-id?   wson-interface-ref
     augment /te:te/te:lsps-state/te:lsp:
       +--ro wavelength-assignment?   identityref
       +--ro selected-frequency?      decimal64
       +--ro channel-spacing?         decimal64
       +--ro resource-pool* [resource-pool-id]
          +--ro resource-pool-id    uint32
          +--ro pool-state?         boolean
          +--ro matrix-interface* [in-port-id]
             +--ro in-port-id     wson-interface-ref
             +--ro out-port-id?   wson-interface-ref
     augment /te:te/te-dev:interfaces/te-dev:interface:
       +--rw selected-frequency?   decimal64
       +--rw channel-spacing?      decimal64


3. TE Tunnel Model for WSON


<CODE BEGINS> file "ietf-te-wson@2017-06-27.yang"

module ietf-te-wson{

  namespace "urn:ietf:params:xml:ns:yang:ietf-te-wson";

  prefix "te-wson";

  import ietf-te {
    prefix "te";
  }

  import ietf-te-device {
    prefix "te-dev";
  }



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  import ietf-wson-topology {
    prefix "wson";
  }

  organization
    "IETF CCAMP Working Group";

  contact
    "WG Web:   <http://tools.ietf.org/wg/ccamp/>
     WG List:  <mailto:ccamp@ietf.org>

     WG Chair: Daniele Ceccarelli
               <mailto:daniele.ceccarelli@ericsson.com>

     WG Chair: Fatai Zhang
               <mailto:zhangfatai@huawei.com>

     Editor: Young Lee <leeyoung@huawei.com>
     Editor: Dhruv Dhody <dhruv.ietf@gmail.com>
     Editor: Ricard Vilalta <ricard.vilalta@cttc.es>";

 description
    "Latest update to WSON TE YANG data model.";

  revision "2017-06-27" {
    description "Update to add Resource Pool Model.";
    reference "version 1";
  }


  revision "2017-06-21" {
    description "Update to WSON TE YANG initial revision.";
    reference "version 0";
  }

  identity wavelength-assignment {
    description "Wavelength selection base";
  }

  identity unspecified-wavelength-assignment {
    base wavelength-assignment;
    description "No method specified";
  }

  identity first-fit-wavelength-assignment {
    base wavelength-assignment;
    description "All the available wavelengths are numbered,
      and this WA method chooses the available wavelength



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      with the lowest index.";
  }

  identity random-wavelength-assignment {
    base wavelength-assignment;
    description "This WA method chooses an available
      wavelength randomly.";
  }

  identity least-loaded-wavelength-assignment {
    base wavelength-assignment;
    description "This WA method selects the wavelength that
      has the largest residual capacity on the most loaded
      link along the route (in multi-fiber networks).";
  }

  /* TE WSON LSPs groupings */
  grouping lsp-attributes-flags-wson_config {
    description
      "Configuration parameters relating to TE WSON LSP
      attribute flags";

    leaf wavelength-assignment {
      type identityref {
        base wavelength-assignment;
      }
      description "Wavelength Allocation Method";
    }

    leaf selected-frequency {
      type decimal64 {
        fraction-digits 5;
      }
      units THz;
      default 193.1;
      description "Selected Central Frequency";
    }

    leaf channel-spacing {
      type decimal64 {
        fraction-digits 5;
      }
      units GHz;
      description "This is fixed channel spacing for
       WSON, e.g, 12.5, 25, 50, 100, ..";
    }
    uses wson:resource-pool-attributes;
  }




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  grouping tunnel-properties-wson {
    description
      "Top level grouping for LSP properties.";
        uses lsp-attributes-flags-wson_config;
  }

  grouping lsp-properties-wson {
    description
      "Top level grouping for LSP properties.";
      uses lsp-attributes-flags-wson_config;
  }
  /* End of TE WSON LSPs groupings */

  /**
   * Interface groupings
   */
  grouping wson-reservable {
    description "Top level grouping for interface properties";
    leaf selected-frequency {
      type decimal64 {
        fraction-digits 5;
      }
      units THz;
      default 193.1;
      description "Selected Central Frequency";
    }

    leaf channel-spacing {
      type decimal64 {
        fraction-digits 5;
      }
      units GHz;
      description "This is fixed channel spacing for WSON,
                e.g, 12.5, 25, 50, 100, ..";
     }

  }

   /* End of interface groupings */

  /**
   * Augmentation to TE generic module
   */
  augment "/te:te/te:tunnels/te:tunnel/te:config" {
    description
      "Augmentations for WSON TE tunnel properties";
    uses tunnel-properties-wson;
  }




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  augment "/te:te/te:tunnels/te:tunnel/te:state" {
    description
      "Augmentations for WSON TE tunnel properties";
    uses tunnel-properties-wson;
  }

  augment "/te:te/te:lsps-state/te:lsp" {
    description
      " WSON LSP state properties";
    uses lsp-properties-wson;
  }

  augment "/te:te/te-dev:interfaces/te-dev:interface" {
    description
      "WSON reservable bandwidth configuration properties";
    uses wson-reservable;
  }


}
<CODE ENDS>



4. Security Considerations

   TDB



5. IANA Considerations

   TDB

6. Acknowledgments

   This document was prepared using 2-Word-v2.0.template.dot.













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7. References

   7.1. Normative References

   [TE-TOPO] X. Liu, et al., "YANG Data Model for TE Topologies", work
             in progress: draft-ietf-teas-yang-te-topo.



   7.2. Informative References

   [RFC7446]  Y. Lee, G. Bernstein, D. Li, W. Imajuku, "Routing and
             Wavelength Assignment Information Model for Wavelength
             Switched Optical Networks", RFC 7446, Feburary 2015.

   [RFC7579]   G. Bernstein, Y. Lee, D. Li, W. Imajuku, "General
             Network Element Constraint Encoding for GMPLS Controlled
             Networks", RFC 7579, June 2015.

   [RFC7581]  G. Bernstein, Y. Lee, D. Li, W. Imajuku, "Routing and
             Wavelength Assignment Information Encoding for Wavelength
             Switched Optical Networks", RFC 7581, June 2015.



8. Contributors


Authors' Addresses

   Young Lee (ed.)
   Huawei Technologies
   5340 Legacy Drive, Building 3
   Plano, TX 75023
   USA

   Phone: (469) 277-5838
   Email: leeyoung@huawei.com


   Dhruv Dhody
   Huawei Technologies India Pvt. Ltd,
   Near EPIP Industrial Area,  Kundalahalli Village,  Whitefield,
   Bangalore -  560 037 [H1-2A-245]


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   Email: dhruv.dhody@huawei.com

   Victor Lopez
   Telefonica
   Email: victor.lopezalvarez@telefonica.com

   Daniel King
   University of Lancaster
   Email: d.king@lancaster.ac.uk

   Bin Yeong Yoon
   ETRI
   218 Gaijeongro, Yuseong-gu
   Daejeon, Korea
   Email: byyun@etri.re.kr

   Ricard Vilalta
   CTTC
   Email: ricard.vilalta@cttc.es


























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