Fix for ONOS-2567. Restricting the max out port to 65279

Change-Id: Ic5184d8a389ab5eb4fbe83300764fc39773995cf

@@ -53,6 +53,8 @@ import com.google.common.collect.Lists;
          description = "Installs a number of test flow rules - for testing only")
 public class AddTestFlowsCommand extends AbstractShellCommand {
 
+    private static final int MAX_OUT_PORT = 65279;
+
     private CountDownLatch latch;
 
     @Argument(index = 0, name = "flowPerDevice", description = "Number of flows to add per device",
@@ -78,7 +80,7 @@ public class AddTestFlowsCommand extends AbstractShellCommand {
         ArrayList<Long> results = Lists.newArrayList();
         Iterable<Device> devices = deviceService.getDevices();
         TrafficTreatment treatment = DefaultTrafficTreatment.builder()
-                .setOutput(PortNumber.portNumber(RandomUtils.nextInt())).build();
+                .setOutput(PortNumber.portNumber(RandomUtils.nextInt(MAX_OUT_PORT))).build();
         TrafficSelector.Builder sbuilder;
         FlowRuleOperations.Builder rules = FlowRuleOperations.builder();
         FlowRuleOperations.Builder remove = FlowRuleOperations.builder();