module fujitsu-otn-otucn-interfaces {

    yang-version 1;

    namespace
      "urn:fujitsu:params:xml:ns:yang:interface:otucn";

    prefix otucn;

    import ietf-interfaces {
      prefix if;
    }
    import fujitsu-state-timer {
      prefix st;
    }
    import fujitsu-entity-states {
      prefix entity-states;
    }
    import fujitsu-entity-maintenance-loopback {
      prefix fujitsu-loopback;
    }
    import fujitsu-if-type {
      prefix fjift;
    }
    import fujitsu-gcc {
      prefix fujitsuGcc;
    }
    import fujitsu-otn {
      prefix otn;
    }

    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.

Copyright (c) 2015 Fujitsu Network Communications, inc.
All rights reserved. ";

    revision "2015-05-12" {
      description "Initial revision.";
    }


    identity otucn-rate-identity {
      description
        "A unique rate identification of the OTUCn.";
    }

    identity OTUC4 {
      base otucn-rate-identity;
      description "Identity for an OTUC4";
    }

    identity OTUC3 {
      base otucn-rate-identity;
      description "Identity for an OTUC3";
    }

    identity OTUC2 {
      base otucn-rate-identity;
      description "Identity for an OTUC2";
    }

    identity OTUC1 {
      base otucn-rate-identity;
      description "Identity for an OTUC1";
    }

    grouping block-base-ber-threshold {
      leaf degthr {
        type int16 {
          range "-9..2";
        }
        default "0";
        description
          "DEGTHR:Degraded defect one-second Errored Block Count threshold
DEGTHR specifies the exponent part X of 10^X [%].";
      }

      leaf degm {
        type int8 {
          range "2..10";
        }
        default "10";
        description
          "DEGM:Degraded defect consecutive one-second monitoring intervals";
      }
    }  // grouping block-base-ber-threshold

    grouping otucn-attributes {
      description
        "OTUCn attributes (Optical Transport Unit)";
      leaf rate {
        type identityref {
          base otucn-rate-identity;
        }
        description
          "rate identity of the OTUCn. 'identityref' is used
to allow to extend for future higher rates";
      }

      uses entity-states:oper-status;

      uses entity-states:admin-status {
        refine admin-status {
          default "down";
          mandatory false;
        }
      }

      uses otn:tti-choice;

      uses block-base-ber-threshold;

      leaf circuit-id {
        type string {
          length "0..45";
        }
        description
          "circuit identifier/user label";
      }

      leaf direction {
        type enumeration {
          enum "uni-rx" {
            value 0;
            description
              "unidirectional receive only";
          }
          enum "uni-tx" {
            value 1;
            description
              "unidirectional transmit only";
          }
          enum "bi" {
            value 2;
            description "bidirectional";
          }
        }
      }

      leaf auto-rx {
        type boolean;
        description
          "enable/disable generation of transient condition when
the value of the TTI changes.";
      }

      leaf auto-tx {
        type boolean;
        description
          "enable/disable automatic population of outgoing TTI";
      }
    }  // grouping otucn-attributes

    augment /if:interfaces/if:interface {
      container otucn {
        when
          "../if:type = 'fjift:fujitsuOtuc'";
        presence
          "Attribute Nodes for Optical Transport Unit (OTUCn)";
        description
          "Optical Transport Unit (OTUCn):
Models the optical channel interfaces for an Optical White Box.";
        uses st:state-timer {
          refine actual-vstimer {
            config false;
          }
        }

        uses otucn-attributes {
          refine oper-status {
            config false;
          }
        }

        list list-gcc {
          key "gccType";
          description " List of GCC0s";
          uses fujitsuGcc:gcc-group;
        }  // list list-gcc

        uses fujitsu-loopback:maint-loopback;
      }  // container otucn
    }

    notification otucn-notif {
      leaf name {
        type leafref {
          path "/if:interfaces/if:interface/if:name";
        }
      }

      container otucn {
        uses st:state-timer;

        uses otucn-attributes;
      }  // container otucn
    }  // notification otucn-notif
  }  // module fujitsu-otn-otucn-interfaces