module packet-fields {

    yang-version 1;

    namespace
      "urn:ietf:params:xml:ns:yang:packet-fields";

    prefix packet-fields;

    import ietf-inet-types {
      prefix inet;
    }
    import ietf-yang-types {
      prefix yang;
    }

    revision "2014-06-25" {
      description
        "Initial version of packet fields used by access-lists";
    }

  }  // module packet-fields