module event {

    namespace "http://example.com/event";
    prefix "ev";

    augment /snmp:snmp/snmp:engine/snmp:listen/snmp:transport {
    if-feature tlstm;
    case tls {
      container tls {
        description
          "A list of IPv4 and IPv6 addresses and ports to which the
           engine listens for SNMP messages over TLS.";
        leaf ip {
          type inet:ip-address;
          mandatory true;
          description
            "The IPv4 or IPv6 address on which the engine listens
             for SNMP messages over TLS.";
        }
        leaf port {
          type inet:port-number;
          description
            "The TCP port on which the engine listens for SNMP
             messages over TLS.
             If the port is not configured, an engine that
             acts as a Command Responder uses port 10161, and
             an engine that acts as a Notification Receiver
             uses port 10162.";
        }
      }
    }
    case dtls {
      container dtls1 {
        description
          "A list of IPv4 and IPv6 addresses and ports to which the
           engine listens for SNMP messages over DTLS.";
        leaf ip {
          type inet:ip-address;
          mandatory true;
          description
            "The IPv4 or IPv6 address on which the engine listens
             for SNMP messages over DTLS.";
        }
        leaf port {
          type inet:port-number;
          description
            "The UDP port on which the engine listens for SNMP
             messages over DTLS.
             If the port is not configured, an engine that
             acts as a Command Responder uses port 10161, and
             an engine that acts as a Notification Receiver
             uses port 10162.";
        }
      }
    }
  }
}