InterestPacket, ContentPacket, Face classes added
diff --git a/model/ndn_face.h b/model/ndn_face.h
new file mode 100644
index 0000000..4ea9c20
--- /dev/null
+++ b/model/ndn_face.h
@@ -0,0 +1,29 @@
+//
+// ndn_face.h
+// Abstraction
+//
+// Copyright 2011 UCLA. All rights reserved.
+//
+
+#ifndef ndn_face_h
+#define ndn_face_h
+
+#include "ns3/header.h"
+
+namespace ns3
+{
+ // see http://www.ccnx.org/releases/latest/doc/ccode/html/structface.html
+ class NdnFace
+ {
+ public:
+ NdnFace(int faceID);
+ virtual ~NdnFace();
+
+ private:
+ int m_faceID;
+
+ };
+
+}
+
+#endif
\ No newline at end of file