diff --git a/src/conf/xp/4_nc b/src/conf/xp/4_nc
index 5740ad4..f2cffd1 100644
--- a/src/conf/xp/4_nc
+++ b/src/conf/xp/4_nc
@@ -1,5 +1,11 @@
-xpType:nc
+xpType:ncpv
+rmem:300000 300000 300000
 ncClientPort_0:33400
 clientPcap:yes
-ddCount:15000
-rmem:300000 300000 300000
+pvRateLimit:600k
+ddCount:10000
+kpm:fullmesh
+kpms:netlink
+kpmc:netlink
+upmc:fullmesh
+#upmc_args: -n 5
diff --git a/src/mpExperienceNCPV.py b/src/mpExperienceNCPV.py
index 4b984ba..1681241 100644
--- a/src/mpExperienceNCPV.py
+++ b/src/mpExperienceNCPV.py
@@ -9,7 +9,7 @@ class  MpExperienceNCPV(MpExperience):
 	SERVER_NC_LOG = "netcat_server"
 	CLIENT_NC_LOG = "netcat_client"
 	NC_BIN = "netcat"
-	PV_BIN = "/home/bhesmans/Documents/git/pv/pv"
+	PV_BIN = "pv"
 
 	def __init__(self, xpParamFile, mpTopo, mpConfig):
 		MpExperience.__init__(self, xpParamFile, mpTopo, mpConfig)
diff --git a/src/mpIterator.py b/src/mpIterator.py
index c20149d..52ebad9 100755
--- a/src/mpIterator.py
+++ b/src/mpIterator.py
@@ -18,28 +18,39 @@ xpParamFile   = None
 topoBuilder   = "mininet"
 
 class MinValueValidation:
-	def __init__(self, compared):
-		self.compared=compared
+	def __init__(self, yml):
+		self.compared=yml["target"]
 	def validate(self, value):
 		return self.compared<=value
 
-class NumberOfFlowsTest:
+class MinDelayValidation:
+	def __init__(self, v):
+		self.compared=v["target"]
+	def validate(self, flow):
+		return self.compared<=flow[5]
+class TcptraceTest: 
 	def __init__(self, yml, trace):
 		self.yml = yml["validations"]
 		self.trace = trace
 	def validate(self):
 		print self.yml
-		tested_value = self.trace.number_of_flows
-		for k,v in self.yml.iteritems():
-			name = k.title().replace("_","")+"Validation"
-			tester_klass=globals()[name]
-			tester = tester_klass(v)
+		for val in self.yml:
+			print "val: ", val
+			tested_value = self.get_tested_value(val) 
+			klass_name=val["name"].title().replace("_","")+"Validation"
+			tester_klass=globals()[klass_name]
+			tester = tester_klass(val)
 			if tester.validate(tested_value):
 				print "SUCCESS"
 			else:
 				print "FAIL"
-			print k,v
-			
+class NumberOfFlowsTest(TcptraceTest):
+	def get_tested_value(self, val):
+		return self.trace.number_of_flows
+
+class FlowsTest(TcptraceTest):
+	def get_tested_value(self, val):
+		return self.trace.flows[val["index"]]
 
 
 class TcptraceValidator:
diff --git a/src/validation.yml b/src/validation.yml
index 010eb61..3327d18 100644
--- a/src/validation.yml
+++ b/src/validation.yml
@@ -1,8 +1,10 @@
 tcptrace:
   - test: "number_of_flows"
     validations:
-      min_value: 2
-#  - test: "flows"
-#    validations:
-#      - index: 1
-#        min_delay: 7000
+      - name: "min_value"
+        target: 2
+  - test: "flows"
+    validations:
+      - name: "min_delay"
+        index: 1
+        target: 7000