module huawei-oam-cfm-efm {

    yang-version 1;

    namespace
      "urn:huawei:yang:huawei-oam-cfm-efm";

    prefix oam-cfm-efm;

    import huawei-extension {
      prefix ext;
    }
    import huawei-oammgr {
      prefix oammgr;
    }
    import huawei-ifm {
      prefix ifm;
    }
    import huawei-y1731 {
      prefix y1731;
    }
    import huawei-efm {
      prefix efm;
    }

    organization
      "Huawei Technologies Co., Ltd.";

    contact
      "Huawei Industrial Base
     Bantian, Longgang
     Shenzhen 518129
     People's Republic of China
     Website: http://www.huawei.com
     Email: support@huawei.com";

    description
      "Configure the operation, administration and maintenance (OAM) association function.";

    revision "2020-09-18" {
      description "Initial revision.";
      reference
        "Huawei private.";

    }

    ext:task-name "oammgr";

    typedef cfm-bind-efm-type {
      type enumeration {
        enum "CFM-EFM" {
          value 1;
          description
            "Type that CFM transfers fault information to EFM.";
        }
        enum "EFM-CFM" {
          value 2;
          description
            "Type that EFM transfers fault information to CFM.";
        }
      }
      description "Binding type.";
    }

    augment /oammgr:oammgr {
      description
        "Configure the operation, administration and maintenance (OAM) association function.";
      container cfm-bind-efms {
        description
          "List of associations between CFM and EFM.";
        list cfm-bind-efm {
          key "md-name ma-name if-name bind-type";
          unique "md-name ma-name bind-type";
          unique "if-name bind-type";
          description
            "Configure an instance of an association between CFM and EFM.";
          leaf md-name {
            type leafref {
              path
                "/y1731:y1731/y1731:global-enable/y1731:mds/y1731:md/y1731:name";
            }
            description
              "Configure a MD name.";
          }

          leaf ma-name {
            type leafref {
              path
                "/y1731:y1731/y1731:global-enable/y1731:mds/y1731:md[y1731:name=current()/../md-name]/y1731:mas/y1731:ma/y1731:name";
            }
            description
              "Configure a MA name.";
          }

          leaf if-name {
            type leafref {
              path
                "/ifm:ifm/ifm:interfaces/ifm:interface/ifm:name";
            }
            must
              "/ifm:ifm/ifm:interfaces/ifm:interface[ifm:name=current()]/efm:efm/efm:session/efm:state='enable'";
            description
              "Configure the name of interface which the EFM instance bound.";
          }

          leaf bind-type {
            type cfm-bind-efm-type;
            description
              "Configure a binding type.";
          }
        }  // list cfm-bind-efm
      }  // container cfm-bind-efms
    }
  }  // module huawei-oam-cfm-efm