diff --git a/helper/tracers/ccnx-path-weight-tracer.h b/helper/tracers/ccnx-path-weight-tracer.h
new file mode 100644
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+++ b/helper/tracers/ccnx-path-weight-tracer.h
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+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2011 UCLA
+ *
+ * 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>
+ */
+
+#ifndef CCNX_PATH_WEIGHT_TRACER_H
+#define CCNX_PATH_WEIGHT_TRACER_H
+
+#include "ns3/ptr.h"
+#include "ns3/simple-ref-count.h"
+#include "ns3/ccnx-path-stretch-tag.h"
+#include <list>
+
+namespace ns3 {
+
+class Node;
+class Packet;
+class CcnxApp;
+
+class CcnxPathWeightTracer : public SimpleRefCount<CcnxPathWeightTracer>
+{
+public:
+  CcnxPathWeightTracer (std::ostream &os, Ptr<Node> node, std::string appId);
+  virtual ~CcnxPathWeightTracer () { };
+
+  void
+  Connect ();
+  
+  virtual void
+  PrintHeader (std::ostream &os) const;
+
+  /**
+   * \brief Process packet weight upon reception of packet on a local face
+   */
+  virtual void
+  InLocalFace (std::string context,
+               uint32_t weight, Ptr<Node> src, Ptr<Node> dst);
+
+protected:
+  std::ostream &m_os;
+  std::string m_node;
+  Ptr<Node> m_nodePtr;
+  std::string m_appId;
+};
+
+} // namespace ns3
+
+#endif // CCNX_PATH_WEIGHT_TRACER_H