diff --git a/model/fw/per-fib-limits.cc b/model/fw/per-fib-limits.cc
index 4536783..ed41eeb 100644
--- a/model/fw/per-fib-limits.cc
+++ b/model/fw/per-fib-limits.cc
@@ -167,30 +167,30 @@
   NS_LOG_FUNCTION (this << pitEntry->GetPrefix ());
   super::WillEraseTimedOutPendingInterest (pitEntry);
 
-  if (pitEntry->GetOutgoing ().size () == 0)
-    {
-      Ptr<InterestHeader> nackHeader = Create<InterestHeader> (*pitEntry->GetInterest ());
+  // if (pitEntry->GetOutgoing ().size () == 0)
+  //   {
+  //     Ptr<InterestHeader> nackHeader = Create<InterestHeader> (*pitEntry->GetInterest ());
       
-      NS_ASSERT (pitEntry->GetFwTag<PitQueueTag> () != boost::shared_ptr<PitQueueTag> ());
-      if (pitEntry->GetFwTag<PitQueueTag> ()->IsLastOneInQueues ())
-        {
-          nackHeader->SetNack (100);
-        }
-      else
-        {
-          nackHeader->SetNack (101);
-        }
+  //     NS_ASSERT (pitEntry->GetFwTag<PitQueueTag> () != boost::shared_ptr<PitQueueTag> ());
+  //     if (pitEntry->GetFwTag<PitQueueTag> ()->IsLastOneInQueues ())
+  //       {
+  //         nackHeader->SetNack (100);
+  //       }
+  //     else
+  //       {
+  //         nackHeader->SetNack (101);
+  //       }
           
-      Ptr<Packet> pkt = Create<Packet> ();
-      pkt->AddHeader (*nackHeader);
+  //     Ptr<Packet> pkt = Create<Packet> ();
+  //     pkt->AddHeader (*nackHeader);
       
-      for (pit::Entry::in_container::iterator face = pitEntry->GetIncoming ().begin ();
-           face != pitEntry->GetIncoming ().end ();
-           face ++)
-        {
-          face->m_face->Send (pkt->Copy ());
-        }
-    }
+  //     for (pit::Entry::in_container::iterator face = pitEntry->GetIncoming ().begin ();
+  //          face != pitEntry->GetIncoming ().end ();
+  //          face ++)
+  //       {
+  //         face->m_face->Send (pkt->Copy ());
+  //       }
+  //   }
   
   PitQueue::Remove (pitEntry);
   
diff --git a/utils/ndn-pit-queue.cc b/utils/ndn-pit-queue.cc
index 3423775..0c7349f 100644
--- a/utils/ndn-pit-queue.cc
+++ b/utils/ndn-pit-queue.cc
@@ -23,6 +23,7 @@
 #include "ns3/ndn-face.h"
 #include "ns3/ndn-pit-entry.h"
 #include "ns3/log.h"
+#include "ns3/simulator.h"
 
 #include "ns3/assert.h"
 
@@ -99,11 +100,11 @@
 {
   PerInFaceQueue::iterator queue = m_lastQueue;
 
-  // if (queue != m_queues.end () &&
-  //     true)
-  //   {
-  //     queue ++; // actually implement round robin...
-  //   } 
+  if (queue != m_queues.end () &&
+      true)
+    {
+      queue ++; // actually implement round robin...
+    } 
 
   while (queue != m_queues.end () && queue->second->get<0> ().size () == 0) // advance iterator
     {
@@ -126,6 +127,18 @@
   if (queue == m_queues.end ()) // e.g., begin () == end ()
     return 0;
 
+  // if (Simulator::GetContext () == 7)
+  //   {
+  //     for (PerInFaceQueue::const_iterator somequeue = m_queues.begin ();
+  //          somequeue != m_queues.end ();
+  //          somequeue ++)
+  //       {
+  //         if (somequeue == queue) cout << "*";
+  //         cout << somequeue->second->get<0> ().size () << " ";
+  //       }
+  //     cout << endl;
+  //   }
+
   NS_ASSERT_MSG (queue->second->get<0> ().size () != 0, "Logic error");
 
   Ptr<pit::Entry> entry = *queue->second->get<0> ().begin ();