diff --git a/model/pit/ndn-pit.cc b/model/pit/ndn-pit.cc
new file mode 100644
index 0000000..1f1bcde
--- /dev/null
+++ b/model/pit/ndn-pit.cc
@@ -0,0 +1,67 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2011 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>
+ */
+
+#include "ndn-pit.h"
+
+#include "ns3/ndn-interest-header.h"
+#include "ns3/ndn-content-object-header.h"
+
+#include "ns3/log.h"
+#include "ns3/string.h"
+#include "ns3/uinteger.h"
+#include "ns3/simulator.h"
+
+#include <boost/lambda/bind.hpp>
+#include <boost/lambda/lambda.hpp>
+
+NS_LOG_COMPONENT_DEFINE ("NdnPit");
+
+namespace ns3 {
+
+NS_OBJECT_ENSURE_REGISTERED (NdnPit);
+
+using namespace __ndn_private;
+
+TypeId
+NdnPit::GetTypeId ()
+{
+  static TypeId tid = TypeId ("ns3::private::NdnPit")
+    .SetGroupName ("Ndn")
+    .SetParent<Object> ()
+    
+    .AddAttribute ("PitEntryPruningTimout",
+                   "Timeout for PIT entry to live after being satisfied. To make sure recently satisfied interest will not be satisfied again",
+                   StringValue ("100ms"),
+                   MakeTimeAccessor (&NdnPit::m_PitEntryPruningTimout),
+                   MakeTimeChecker ())
+    ;
+
+  return tid;
+}
+
+NdnPit::NdnPit ()
+{
+}
+
+NdnPit::~NdnPit ()
+{
+}
+
+} // namespace ns3