module ieee802-ethernet-pse {

    yang-version 1.1;

    namespace
      "urn:ieee:std:802.3:yang:ieee802-ethernet-pse";

    prefix ieee802-pse;

    import ietf-interfaces {
      prefix if;
      reference
        "IETF RFC 8343";


    }
    import ietf-yang-types {
      prefix yang;
      reference
        "IETF RFC 6991";


    }
    import ieee802-ethernet-interface {
      prefix ieee802-eth-if;
    }

    organization
      "IEEE 802.3 Ethernet Working Group
     Web URL: http://www.ieee802.org/3/";

    contact
      "Web URL: http://www.ieee802.org/3/";

    description
      "This module contains YANG definitions for configuring and
     managing ports with Power Over Ethernet feature defined by
     IEEE 802.3. It provides functionality roughly equivalent to
     that of the POWER-ETHERNET-MIB defined in IETF RFC 3621.";

    revision "2019-06-21" {
      description "Initial revision.";
      reference
        "IEEE Std 802.3-2018, unless dated explicitly";

    }


    typedef multi-pair-detection-state {
      type enumeration {
        enum "disabled" {
          value 1;
          description "PSE disabled.";
        }
        enum "searching" {
          value 2;
          description "PSE is searching.";
        }
        enum "deliveringPower" {
          value 3;
          description
            "PSE is delivering power.";
        }
        enum "fault" {
          value 4;
          description "PSE fault detected.";
        }
        enum "test" {
          value 5;
          description "PSE test mode.";
        }
        enum "otherFault" {
          value 6;
          description
            "PSE implementation specific fault detected.";
        }
      }
      description
        "Detection state of a multi-pair PSE.";
      reference
        "IEEE Std 802.3, 30.9.1.1.5";

    }

    typedef single-pair-detection-state {
      type enumeration {
        enum "unknown" {
          value 1;
          description
            "True detection state unknown.";
        }
        enum "disabled" {
          value 2;
          description
            "PoDL PSE is disabled.";
        }
        enum "searching" {
          value 3;
          description
            "PoDL PSE is searching.";
        }
        enum "deliveringPower" {
          value 4;
          description
            "PoDL PSE is delivering power.";
        }
        enum "sleep" {
          value 5;
          description
            "PoDL PSE is in sleep state.";
        }
        enum "idle" {
          value 6;
          description "PoDL PSE is idle.";
        }
        enum "error" {
          value 7;
          description "PoDL PSE error.";
        }
      }
      description
        "Detection state of a PoDL PSE.";
      reference
        "IEEE Std 802.3, 30.15.1.1.3";

    }

    typedef power-class {
      type enumeration {
        enum "class0" {
          value 1;
          description "Class 0";
        }
        enum "class1" {
          value 2;
          description "Class 1";
        }
        enum "class2" {
          value 3;
          description "Class 2";
        }
        enum "class3" {
          value 4;
          description "Class 3";
        }
        enum "class4" {
          value 5;
          description "Class 4";
        }
        enum "class5" {
          value 6;
          description
            "Class 5 (for PoDL-only)";
        }
        enum "class6" {
          value 7;
          description
            "Class 6 (for PoDL-only)";
        }
        enum "class7" {
          value 8;
          description
            "Class 7 (for PoDL-only)";
        }
        enum "class8" {
          value 9;
          description
            "Class 8 (for PoDL-only)";
        }
        enum "class9" {
          value 10;
          description
            "Class 9 (for PoDL-only)";
        }
        enum "unknown" {
          value 11;
          description
            "Initializing, true Power Class not yet known 
           (only for PoDL PSE).";
        }
      }
      description "Power class.";
      reference
        "IEEE Std 802.3, 30.9.1.1.6 aPSEPowerClassification and 
        IEEE Std 802.3, 30.15.1.1.6 aPoDLPSEDetectedPDPowerClass.";

    }

    identity pse-type {
      description "Base type for PSE.";
    }

    identity multi-pair {
      base pse-type;
      description
        "PSE supports IEEE Std 802.3, Clause 33.";
    }

    identity single-pair {
      base pse-type;
      description
        "PSE support IEEE Std 802.3, Clause 104.";
    }

    identity powering-pairs {
      description
        "Base type for powering pairs.";
    }

    identity signal {
      base powering-pairs;
      description
        "The signal pair is in use.";
    }

    identity spare {
      base powering-pairs;
      description
        "The spare pair is in use.";
    }
  }  // module ieee802-ethernet-pse