module openconfig-igmp-types {

    yang-version "1";

    // namespace
    namespace "http://openconfig.net/yang/igmp/types";

    prefix "oc-igmp-types";

    // import some basic types
    import openconfig-extensions { prefix "oc-ext"; }

    // meta
    organization
      "OpenConfig working group";

    contact
      "OpenConfig working group
      www.openconfig.net";

    description
      "This module defines types related to the IGMP protocol model.";

    oc-ext:openconfig-version "0.1.0";

    revision "2018-02-19" {
        description
          "Initial revision.";
        reference "0.1.0";
    }

    // typedef statements

    typedef igmp-version {
        type uint8 {
            range 1..3;
        }
        description
          "IGMP Version.";
        reference "v1 = RFC1112, v2 = RFC2236, v3 = RFC3376";
    }

    typedef igmp-interval-type {
        type uint16 {
          range 1..1024;
        }
        units "seconds";
        description
          "Interval at which the router sends the IGMP query message toward
          the upstream neighbor.";
        reference "RFC3376 8.2 Page 40";
    }
}