module fujitsu-otn {

    yang-version 1;

    namespace
      "urn:fujitsu:params:xml:ns:yang:otn";

    prefix otn;

    import fujitsu-notifications {
      prefix notifications;
    }
    import fujitsu-notification-types {
      prefix notification-types;
    }

    organization "Fujitsu Ltd.";

    contact
      "Fujitsu Ltd.
     
     Address: 2801 Telecom Parkway
              Richardson, Texas 75082
     
     Tel: +1-800-USE-FTAC (1-800-873-3822)
     Email: ftac@fnc.fujitsu.com
     Web: www.fujitsu.com/us/services/telecom";

    description
      "This module contains YANG definitions 
     for the OTU Interfaces of an Optical White Box (OWB).
     
     Copyright (c) 2015 Fujitsu Ltd.
     All rights reserved. ";

    revision "2018-04-19" {
      description
        "default values not needed for oper sapi/dapi";
    }

    revision "2018-02-04" {
      description
        "adding description for leaf tim-det-mode.";
    }

    revision "2015-08-13" {
      description "Initial revision.";
    }


    typedef itu-otn-tti-sapi {
      type string {
        length "0..15";
      }
      default "";
      description
        "Source Access Point Identifier";
    }

    typedef itu-otn-tti-dapi {
      type string {
        length "0..15";
      }
      default "";
      description
        "Destination Access Point Identifier";
    }

    typedef itu-otn-tti-op-spec {
      type string {
        length "0..32";
      }
      default "";
      description "Operator Spec";
    }

    typedef itu-otn-oper-tti-sapi {
      type string {
        length "0..15";
      }
      description
        "Source Access Point Identifier";
    }

    typedef itu-otn-oper-tti-dapi {
      type string {
        length "0..15";
      }
      description
        "Destination Access Point Identifier";
    }

    typedef itu-otn-oper-tti-op-spec {
      type string {
        length "0..32";
      }
      description "Operator Spec";
    }

    typedef ansi-otn-tti {
      type string {
        length "0..62";
      }
      default "";
      description "Trail Trace Identifier";
    }

    typedef itu-tim-det-mode {
      type enumeration {
        enum "off" {
          value 0;
          description "TIM detection off";
        }
        enum "sapi-only" {
          value 1;
          description
            "TIM detection sapi only";
        }
        enum "dapi-only" {
          value 2;
          description
            "TIM detection dapi only";
        }
        enum "op-spec-only" {
          value 3;
          description
            "TIM detection op-spec only";
        }
        enum "sapi-and-dapi" {
          value 4;
          description
            "TIM detection sapi and dapi";
        }
        enum "sapi-and-op-spec" {
          value 5;
          description
            "TIM detection sapi and op-spec";
        }
        enum "dapi-and-op-spec" {
          value 6;
          description
            "TIM detection dapi and op-spec";
        }
        enum "all" {
          value 7;
          description
            "TIM detection all (sapi, dapi, op-spec)";
        }
      }
      default "off";
      description "TIM detection mode";
    }

    grouping otn-tti-itu {
      leaf sapi {
        type itu-otn-tti-sapi;
        description
          "Source Access Point Identifier";
      }

      leaf dapi {
        type itu-otn-tti-dapi;
        description
          "Destination Access Point Identifier";
      }

      leaf op-spec {
        type itu-otn-tti-op-spec;
        description "TTI Operator Spec";
      }
    }  // grouping otn-tti-itu

    grouping otn-oper-tti-itu {
      leaf sapi {
        type itu-otn-oper-tti-sapi;
        description
          "Source Access Point Identifier";
      }

      leaf dapi {
        type itu-otn-oper-tti-dapi;
        description
          "Destination Access Point Identifier";
      }

      leaf op-spec {
        type itu-otn-oper-tti-op-spec;
        description "TTI Operator Spec";
      }
    }  // grouping otn-oper-tti-itu

    grouping otn-tti-ansi {
      leaf tti {
        type ansi-otn-tti;
        description "Trail Trace Identifier";
      }
    }  // grouping otn-tti-ansi

    grouping tti-choice {
      choice standard {
        default "itu";
        description
          "choice between ANSI Trail Trace Identifier and 
         ITU-T Trail Trace Identifer (SAPI, DAPI, OperatorSpecific)";
        container tti-itu {
          description
            "ITU-T Trail Trace Identifer (SAPI, DAPI, OperatorSpecific)";
          container tx-tti {
            description
              "Transmitted Trail Trace Identifier";
            uses otn-tti-itu;
          }  // container tx-tti

          container rx-tti {
            config false;
            description
              "Received Trail Trace Identifier";
            uses otn-oper-tti-itu;
          }  // container rx-tti

          container exp-tti {
            description
              "Expected Trail Trace Identifier";
            uses otn-tti-itu;
          }  // container exp-tti

          leaf tim-det-mode {
            type itu-tim-det-mode;
            description "TIM detection mode";
          }
        }  // container tti-itu
        container tti-ansi {
          description
            "ANSI Trail Trace Identifer";
          container tx-tti {
            description
              "Transmitted Trail Trace Identifier";
            uses otn-tti-ansi;
          }  // container tx-tti

          container rx-tti {
            config false;
            description
              "Received Trail Trace Identifier";
            uses otn-tti-ansi;
          }  // container rx-tti

          container exp-tti {
            description
              "Expected Trail Trace Identifier";
            uses otn-tti-ansi;
          }  // container exp-tti
        }  // container tti-ansi
      }  // choice standard
    }  // grouping tti-choice

    augment /notifications:event-notification {
      container tti {
        when
          "/notifications:event-notification/notifications:event-type-id =
         'notification-types:otuReceivedTraceChange'";
        description
          "OTN Received Trace Change";
        container current-tti {
          description
            "Current received Trail Trace Identifier";
          choice standard {
            case itu {
              uses otn-tti-itu;
            }  // case itu

            case ansi {
              uses otn-tti-ansi;
            }  // case ansi
          }  // choice standard
        }  // container current-tti

        container previous-tti {
          description
            "Previous received Trail Trace Identifier";
          choice standard {
            case itu {
              uses otn-tti-itu;
            }  // case itu

            case ansi {
              uses otn-tti-ansi;
            }  // case ansi
          }  // choice standard
        }  // container previous-tti
      }  // container tti
    }
  }  // module fujitsu-otn