module SNMPv2-SMI {

    yang-version 1;

    namespace
      "http://tail-f.com/ns/mibs/SNMPv2-SMI/1.0";

    prefix SNMPv2_SMI;

    import ietf-yang-types {
      prefix yang;
    }
    import tailf-common {
      prefix tailf;
    }

    revision "1998-09-18" {
      description "Initial revision";
    }

    tailf:id "";
    tailf:snmp-mib-module-name "SNMPv2-SMI";

    typedef ExtUTCTime {
      type tailf:hex-list {
      }
    }

    typedef ObjectName {
      type yang:object-identifier;
    }

    typedef NotificationName {
      type yang:object-identifier;
    }

    typedef Integer32 {
      type int32 {
        range "-2147483648 .. 2147483647";
      }
    }

    typedef IpAddress {
      type string {
        pattern
          "(0|[1-9](([0-9]){0,2})).(0|[1-9](([0-9]){0,2})).(0|[1-9](([0-9]){0,2})).(0|[1-9](([0-9]){0,2}))";
      }
    }

    typedef Counter32 {
      type uint32 {
        range "0 .. 4294967295";
      }
    }

    typedef Gauge32 {
      type uint32 {
        range "0 .. 4294967295";
      }
    }

    typedef Unsigned32 {
      type uint32 {
        range "0 .. 4294967295";
      }
    }

    typedef TimeTicks {
      type uint32 {
        range "0 .. 4294967295";
      }
    }

    typedef Opaque {
      type tailf:hex-list;
    }

    typedef Counter64 {
      type yang:counter64 {
        range "0 .. 18446744073709551615";
      }
    }
  }  // module SNMPv2-SMI