For duplicate interests keep incoming face !!! Need more thinking
diff --git a/model/ccnx-pit-entry.h b/model/ccnx-pit-entry.h
index ad865ba..40f33d1 100644
--- a/model/ccnx-pit-entry.h
+++ b/model/ccnx-pit-entry.h
@@ -253,6 +253,7 @@
 
   Time m_expireTime;         ///< \brief Time when PIT entry will be removed
 
+  Time m_lastRetransmission; ///< @brief Last time when number of retransmissions were increased
   uint32_t m_maxRetxCount;   ///< @brief Maximum allowed number of retransmissions via outgoing faces
 };