diff --git a/helper/ccnb-parser/visitors/ccnb-parser-interest-visitor.cc b/helper/ccnb-parser/visitors/ccnb-parser-interest-visitor.cc
index 1964ac7..c436923 100644
--- a/helper/ccnb-parser/visitors/ccnb-parser-interest-visitor.cc
+++ b/helper/ccnb-parser/visitors/ccnb-parser-interest-visitor.cc
@@ -177,6 +177,7 @@
                boost::any_cast<uint32_t> (
                                           (*n.m_nestedTags.begin())->accept(nonNegativeIntegerVisitor)));
       break;
+    }
 }
 
 } // namespace CcnbParser
diff --git a/helper/ccnx-encoding-helper.cc b/helper/ccnx-encoding-helper.cc
index f486c01..15757fc 100644
--- a/helper/ccnx-encoding-helper.cc
+++ b/helper/ccnx-encoding-helper.cc
@@ -156,16 +156,10 @@
     {
       written += EstimateTaggedBlob (CcnbParser::CCN_DTAG_Nonce, sizeof(uint32_t));
     }
-  if (interest.IsNack () )
+  if (interest.GetNack ()>0)
     {
-        written += EstimateBlockHeader (CcnbParser::NDN_DTAG_Nack);
-        written += EstimateNumber (1);
-        written += 1;
-    }
-  if (interest.IsCongested () )
-    {
-        written += EstimateBlockHeader (CcnbParser::NDN_DTAG_Congested);
-        written += EstimateNumber (1);
+        written += EstimateBlockHeader (CcnbParser::CCN_DTAG_Nack);
+        written += EstimateNumber (interest.GetNack ());
         written += 1;
     }
 
diff --git a/helper/ccnx-stack-helper.cc b/helper/ccnx-stack-helper.cc
index f8f0405..3bc5ce9 100644
--- a/helper/ccnx-stack-helper.cc
+++ b/helper/ccnx-stack-helper.cc
@@ -85,6 +85,10 @@
 #include <map>
 #include <boost/foreach.hpp>
 
+#define NDN_DEFAULT_DATA_SIZE      1024
+#define NDN_INTEREST_RESET_PERIOD  Seconds(0.01)
+
+
 NS_LOG_COMPONENT_DEFINE ("CcnxStackHelper");
 
 namespace ns3 {
@@ -222,19 +226,17 @@
       NS_LOG_INFO("DataRate for this link is " << dataRate.Get());
       pit->maxBucketsPerFace[face->GetId()] = 0.1 * dataRate.Get().GetBitRate () /(NDN_DEFAULT_DATA_SIZE + sizeof(CcnxInterestHeader));
       NS_LOG_INFO("maxBucketsPerFace["<<face->GetId()<<"] = " << pit->maxBucketsPerFace[face->GetId()]); 
-      pit->leakSize[face->GetId()] = 0.97 * NDN_INTEREST_RESET_PERIOD / SECOND * dataRate.Get().GetBitRate () / (NDN_DEFAULT_DATA_SIZE + sizeof(CcnxInterestHeader));
+      pit->leakSize[face->GetId()] = 0.97 * NDN_INTEREST_RESET_PERIOD.ToDouble(Time::S) * dataRate.Get().GetBitRate () / (NDN_DEFAULT_DATA_SIZE + sizeof(CcnxInterestHeader));
       NS_LOG_INFO("pit->leakSize["<<face->GetId()<<"] = " << pit->leakSize[face->GetId()]);
         
-        
-      if(face->IsLocal()==true)
-        NS_LOG_INFO("Face #" << face_id << " is turned on");
+      NS_LOG_INFO("Face #" << face_id << " is turned on");
       face->SetUp ();
       faces->Add (face);
     }
     
   m_forwardingHelper.SetForwarding (ccnx, pit);
 
-  ccnx->ScheduleLeakage ();
+  // ccnx->ScheduleLeakage ();
     
   return faces;
 }