diff --git a/src/mpIterator.py b/src/mpIterator.py
new file mode 100755
index 0000000..c20149d
--- /dev/null
+++ b/src/mpIterator.py
@@ -0,0 +1,152 @@
+#!/usr/bin/python
+
+import sys, getopt
+from mpXpRunner import MpXpRunner
+from mpTopo import MpTopo
+
+from shutil import copy
+import os
+from subprocess import call
+
+import datetime
+from mpTcptraceData import *
+
+from yaml import load, dump
+
+topoParamFile = None
+xpParamFile   = None
+topoBuilder   = "mininet"
+
+class MinValueValidation:
+	def __init__(self, compared):
+		self.compared=compared
+	def validate(self, value):
+		return self.compared<=value
+
+class NumberOfFlowsTest:
+	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)
+			if tester.validate(tested_value):
+				print "SUCCESS"
+			else:
+				print "FAIL"
+			print k,v
+			
+
+
+class TcptraceValidator:
+	def __init__(self, yml, trace):
+		self.yml = yml["tcptrace"]
+		self.trace = trace
+	def validate(self):
+		for test in self.yml:
+			name=test["test"].title().replace("_","")+"Test"
+			klass = globals()[name]
+			r = klass(test, self.trace)
+			r.validate()
+
+
+
+def printHelp():
+	print("Help Menu")
+
+def parseArgs(argv):
+	global topoParamFile
+	global xpParamFile
+	try:
+		opts, args = getopt.getopt(argv, "ht:x:", ["topoParam=","xp="])
+	except getopt.GetoptError:
+		printHelp()
+		sys.exit(1)
+	for opt, arg in opts:
+		if opt == "-h":
+			printHelp()
+			sys.exit(1)
+		elif opt in ("-x","--xp"):
+			xpParamFile = arg
+		elif opt in ("-t","--topoParam"):
+			print("hey")
+			topoParamFile = arg
+	if topoParamFile is None:
+		print("Missing the topo...")
+		printHelp()
+		sys.exit(1)
+def write_entry(f, key, val):
+	f.write("{}:{}\n".format(key,val))
+	
+def generateTopo():
+	path="/tmp/topo"
+	f=open(path,"w")
+	# delay, queueSize (in packets), bw
+	write_entry(f, "path_0", "10,15,5")
+	write_entry(f, "path_1", "10,15,5")
+	write_entry(f, "topoType", "MultiIf")
+	f.close()
+	return path
+	
+def generateXp():
+	path="/tmp/xp"
+	f=open(path,"w")
+	write_entry(f, "xpType", "nc")
+	write_entry(f, "kpm", "fullmesh")
+	write_entry(f, "kpms", "netlink")
+	write_entry(f, "kpmc", "netlink")
+	write_entry(f, "upmc", "fullmesh")
+#	write_entry(f, "upmc_args", "-t 600000 -i 500 -c 7800")
+	write_entry(f, "ddCount", "10000")
+	write_entry(f, "clientPcap", "yes")
+	write_entry(f, "ncClientPort_0", "0:33400")
+	write_entry(f, "rmem","300000 300000 300000")
+	f.close()
+	return path
+
+timestamp=datetime.datetime.now().isoformat()
+#topoFile=generateTopo()
+#print(topoFile)
+#xpFile=generateXp()
+#print(xpFile)
+
+topoFile="./conf/topo/simple_para"
+xpFile="./conf/xp/4_nc"
+
+#MpXpRunner(MpTopo.mininetBuilder, topoFile, xpFile)
+
+destDir="/tmp/dest"
+if not os.path.exists(destDir):
+	os.makedirs(destDir)
+
+#copy log files
+copy("client.pcap",destDir) 
+#copy xp and topo
+copy(topoFile,destDir) 
+copy(xpFile,destDir) 
+
+#os.chdir(destDir)
+#print(os.getcwd())
+#call(["/usr/local/bin/mptcptrace", "-f", "/tmp/dest/client.pcap", "-G20", "-F3", "-r7", "-s", "-S", "-a"])
+
+t = TcptraceData("/tmp/dest/client.pcap")
+print "Number of flows:", t.number_of_flows
+print "Time for fist flow:", t.first_packet(1)
+
+validation_file="validation.yml"
+with open(validation_file, 'r') as f:
+	validations = load(f)
+print validations
+
+tcptrace_validator = TcptraceValidator(validations, t )
+print "WILL VALIDATE"
+tcptrace_validator.validate()
+
+#for v  in validations["tcptrace"]:
+#	print dump(v)
+
+# /usr/local/bin/mptcptrace -f /tmp/dest/client.pcap -G20 -F3 -r7 -s -S -a
diff --git a/src/mpTcptraceData.py b/src/mpTcptraceData.py
new file mode 100755
index 0000000..56a8e18
--- /dev/null
+++ b/src/mpTcptraceData.py
@@ -0,0 +1,46 @@
+#!/usr/bin/python
+
+
+from subprocess import check_output
+import csv
+
+from io import StringIO
+
+
+
+class TcptraceData:
+	def __init__(self, pcap_file):
+		self.pcap_file=pcap_file
+		csv_content = check_output(["tcptrace", "-l", "--csv", pcap_file])
+		tcptrace_reader = csv.reader(filter(lambda l: len(l)>0 and l[0]!="#",csv_content.splitlines()))
+		cells=list(tcptrace_reader)
+		self.headers=cells[0]
+		self.flows=cells[1:]
+		self.number_of_flows=len(self.flows)
+	# gets cell corresponding to flow with header column 
+	# flow 0 = first one, from 1=subflows
+	def get(self, flow, column):
+		if flow>self.number_of_flows-1:
+			raise Exception("Bad flow index")
+		return self.flows[flow][self.headers.index(column)]
+	# returns first packet time of flow
+	def first_packet(self, flow):
+		return float(self.flows[flow][self.header_index("first_packet")])-float(self.flows[0][self.header_index("first_packet")])
+	# util: get column index based on header name
+	def header_index(self, column):
+		return self.headers.index(column)
+	
+
+	
+
+
+
+
+#t = TcptraceData("client.pcap")
+#print t.number_of_flows
+#print t.first_packet(1)
+
+
+
+
+
diff --git a/src/validation.yml b/src/validation.yml
new file mode 100644
index 0000000..010eb61
--- /dev/null
+++ b/src/validation.yml
@@ -0,0 +1,8 @@
+tcptrace:
+  - test: "number_of_flows"
+    validations:
+      min_value: 2
+#  - test: "flows"
+#    validations:
+#      - index: 1
+#        min_delay: 7000