// to be removed
 private static void server(String nodeId, Map<String, String> clusterConfig) {
   final String serviceName = "vipr-2.2.0.0.1";
   try {
     MulticastUtil.create().publish(serviceName, nodeId, clusterConfig, 10000);
   } catch (Exception e) {
     e.printStackTrace();
     System.exit(1);
   }
 }
 // to be removed
 private static void client() {
   final String serviceName = "vipr-2.2.0.0.1";
   try {
     MulticastUtil.create().list(serviceName);
   } catch (Exception e) {
     e.printStackTrace();
     System.exit(1);
   }
 }
 /*
  * Broadcast local configuration to others over the network.
  * @return true if broadcast successful, false if failed.
  */
 public static boolean doBroadcast(String releaseVersion, Configuration config, long publishTime) {
   boolean taskSuccess = true;
   _log.debug("{} - broadcasting cluster configuration {}", config.getNodeId(), config.toString());
   try {
     MulticastUtil.create(config.getHwConfig().get(PropertyConstants.PROPERTY_KEY_NETIF))
         .publish(releaseVersion, config.getNodeId(), config.getConfigMap(), publishTime);
   } catch (IOException e) {
     taskSuccess = false;
     _log.error("broadcast configuration caught exception with: " + e.getMessage());
   } finally {
     _log.info(
         "broadcast configuration via {} for {} is done",
         config.getHwConfig().get(PropertyConstants.PROPERTY_KEY_NETIF),
         config.getScenario());
   }
   return taskSuccess;
 }
 public static MulticastUtil create() throws IOException {
   return MulticastUtil.create(null);
 }