diff --git a/ndn.cxx/detail/pending-interests-container.h b/ndn.cxx/detail/pending-interests-container.h
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+++ b/ndn.cxx/detail/pending-interests-container.h
@@ -0,0 +1,66 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013, Regents of the University of California
+ *                     Alexander Afanasyev
+ *
+ * GNU v3.0 license, See the LICENSE file for more information
+ *
+ * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#ifndef NDN_NDNCXX_DETAIL_PENDING_INTEREST_CONTAINER_H
+#define NDN_NDNCXX_DETAIL_PENDING_INTEREST_CONTAINER_H
+
+#include <ns3/ndnSIM/utils/trie/trie-with-policy.h>
+#include "timeouts-policy.h"
+
+namespace ns3 {
+namespace ndn {
+namespace detail {
+
+struct PendingInterestEntry : public SimpleRefCount< PendingInterestEntry >
+{
+public:
+  PendingInterestEntry (Ptr<const Interest> interest)
+    : m_interest (interest)
+  { }
+  
+  void
+  AddCallbacks (ApiFace::DataCallback onData, ApiFace::TimeoutCallback onTimeout)
+  { 
+    m_dataCallback = onData;
+    m_timeoutCallback = onTimeout;
+  }
+
+  void
+  ClearCallbacks ()
+  {
+    m_dataCallback = ApiFace::DataCallback ();
+    m_timeoutCallback = ApiFace::TimeoutCallback ();
+  }
+
+  Ptr<const Interest>
+  GetInterest () const
+  {
+    return m_interest;
+  }
+  
+public:
+  ApiFace::DataCallback m_dataCallback;
+  ApiFace::TimeoutCallback m_timeoutCallback;
+  Ptr<const Interest> m_interest;
+};
+
+
+struct PendingInterestContainer :
+    public ndnSIM::trie_with_policy<Name,
+                                    ndnSIM::smart_pointer_payload_traits< PendingInterestEntry >,
+                                    timeouts_policy_traits>
+{
+};
+
+} // detail
+} // ndn
+} // ns3
+
+#endif // NDN_NDNCXX_DETAIL_PENDING_INTEREST_CONTAINER_H