diff -r ad0d9ba6d041 src/point-to-point/helper/point-to-point-helper.cc
--- a/src/point-to-point/helper/point-to-point-helper.cc	Tue Mar 08 22:35:58 2016 -0800
+++ b/src/point-to-point/helper/point-to-point-helper.cc	Tue Mar 08 22:55:52 2016 -0800
@@ -28,6 +28,7 @@
 #include "ns3/config.h"
 #include "ns3/packet.h"
 #include "ns3/names.h"
+#include "ns3/uinteger.h"
 #include "ns3/mpi-interface.h"
 #include "ns3/mpi-receiver.h"
 
@@ -41,6 +42,9 @@
 PointToPointHelper::PointToPointHelper ()
 {
   m_queueFactory.SetTypeId ("ns3::DropTailQueue");
+  // Device queue set to small default value such as in Linux
+  m_queueFactory.Set ("MaxPackets", UintegerValue (3));
+  m_queueFactory.Set ("MaxBytes", UintegerValue (3 * 65535));
   m_deviceFactory.SetTypeId ("ns3::PointToPointNetDevice");
   m_channelFactory.SetTypeId ("ns3::PointToPointChannel");
   m_remoteChannelFactory.SetTypeId ("ns3::PointToPointRemoteChannel");