diff --git a/examples/ndn-zipf-mandelbrot.cc b/examples/ndn-zipf-mandelbrot.cc
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+++ b/examples/ndn-zipf-mandelbrot.cc
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+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011-2012 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+// ndn-grid.cc
+#include "ns3/core-module.h"
+#include "ns3/network-module.h"
+#include "ns3/point-to-point-module.h"
+#include "ns3/point-to-point-layout-module.h"
+#include "ns3/ndnSIM-module.h"
+
+using namespace ns3;
+
+/**
+ * This scenario simulates a grid topology (using PointToPointGrid module)
+ *
+ * (consumer) -- ( ) ----- ( )
+ *     |          |         |
+ *    ( ) ------ ( ) ----- ( )
+ *     |          |         |
+ *    ( ) ------ ( ) -- (producer)(2,2)
+ *
+ * All links are 1Mbps with propagation 10ms delay.
+ *
+ * FIB is populated using NdnGlobalRoutingHelper.
+ *
+ * Consumer requests data from producer with frequency 100 interests per second
+ * (interests contain constantly increasing sequence number).
+ *
+ * For every received interest, producer replies with a data packet, containing
+ * 1024 bytes of virtual payload.
+ *
+ * To run scenario and see what is happening, use the following command:
+ *
+ *     NS_LOG=ndn.Consumer:ndn.ConsumerZipfMandelbrot:ndn.Producer ./waf --run=ndn-zipf-mandelbrot
+ */
+
+int
+main (int argc, char *argv[])
+{
+  //LogComponentEnable("ndn.CbisGlobalRoutingHelper", LOG_LEVEL_INFO);
+  // Setting default parameters for PointToPoint links and channels
+  Config::SetDefault ("ns3::PointToPointNetDevice::DataRate", StringValue ("1Mbps"));
+  Config::SetDefault ("ns3::PointToPointChannel::Delay", StringValue ("1ms"));
+  Config::SetDefault ("ns3::DropTailQueue::MaxPackets", StringValue ("10"));
+
+  // Read optional command-line parameters (e.g., enable visualizer with ./waf --run=<> --visualize
+  CommandLine cmd;
+  cmd.Parse (argc, argv);
+
+  // Creating 3x3 topology
+  PointToPointHelper p2p;
+  PointToPointGridHelper grid (3, 3, p2p);
+  grid.BoundingBox(100,100,200,200);
+
+  // Install CCNx stack on all nodes
+  ndn::StackHelper ccnxHelper;
+  ccnxHelper.SetForwardingStrategy ("ns3::ndn::fw::SmartFlooding");
+  ccnxHelper.SetContentStore ("ns3::ndn::cs::Lru", "MaxSize", "10");
+  ccnxHelper.InstallAll ();
+
+  // Installing global routing interface on all nodes
+  //ndn::CbisGlobalRoutingHelper ccnxGlobalRoutingHelper;
+  ndn::GlobalRoutingHelper ccnxGlobalRoutingHelper;
+  ccnxGlobalRoutingHelper.InstallAll ();
+
+  // Getting containers for the consumer/producer
+  Ptr<Node> producer = grid.GetNode (2, 2);
+  NodeContainer consumerNodes;
+  consumerNodes.Add (grid.GetNode (0,0));
+
+  // Install CCNx applications
+  std::string prefix = "/prefix";
+
+  ndn::AppHelper consumerHelper ("ns3::ndn::ConsumerZipfMandelbrot");
+  //ndn::AppHelper consumerHelper ("ns3::ndn::ConsumerCbr");
+  consumerHelper.SetPrefix (prefix);
+  consumerHelper.SetAttribute ("Frequency", StringValue ("100")); // 100 interests a second
+  consumerHelper.SetAttribute ("NumberOfContents", StringValue ("100")); // 10 different contents
+  //consumerHelper.SetAttribute ("Randomize", StringValue ("uniform")); // 100 interests a second
+  consumerHelper.Install (consumerNodes);
+
+  ndn::AppHelper producerHelper ("ns3::ndn::Producer");
+  producerHelper.SetPrefix (prefix);
+  producerHelper.SetAttribute ("PayloadSize", StringValue("100"));
+  producerHelper.Install (producer);
+  ccnxGlobalRoutingHelper.AddOrigins (prefix, producer);
+
+  // Calculate and install FIBs
+  ccnxGlobalRoutingHelper.CalculateRoutes ();
+
+  Simulator::Stop (Seconds (10.0));
+
+  Simulator::Run ();
+  Simulator::Destroy ();
+
+  return 0;
+}