public void activateUDP(String label, String host, int port, int pingDelay, long key) throws IMTPException, ServiceException {
GenericCommand cmd = new GenericCommand(H_ACTIVATEUDP, UDPNodeMonitoringService.NAME, null);
cmd.addParam(label);
cmd.addParam(host);
cmd.addParam(new Integer(port));
cmd.addParam(new Integer(pingDelay));
cmd.addParam(new Long(key));
Node n = getNode();
Object result = n.accept(cmd);
if ((result != null) && (result instanceof Throwable)) {