diff --git a/src/mpIterator.py b/src/mpIterator.py
index e532514..8eee00b 100755
--- a/src/mpIterator.py
+++ b/src/mpIterator.py
@@ -1,5 +1,7 @@
 #!/usr/bin/python
 
+# apt-get install python-configglue
+
 import sys, getopt
 from mpXpRunner import MpXpRunner
 from mpTopo import MpTopo
@@ -9,141 +11,114 @@ import os
 from subprocess import call
 
 import datetime
-from mpTcptraceData import *
+# currently all checkers and validations and defined in this file
+from mpValidations import *
 
 from yaml import load, dump
 
-topoParamFile = None
-xpParamFile   = None
-topoBuilder   = "mininet"
-
-# A checker runs tests, and a test is made of multiple validations
+from optparse import OptionParser
 
 
+# Define supported options
+parser = OptionParser()
+parser.add_option("-t", "--tests", dest="tests_dir",
+                  help="Directory holding tests", metavar="TESTSDIR" , default="./tests")
+parser.add_option("-l", "--logs", dest="logs_dir",
+                  help="Directory where to log", metavar="LOGSDIR" , default="./logs")
 
-# checks a value passed is greater or equel (generic)
-class MinValueValidation:
-	def __init__(self, yml):
-		self.compared=yml["target"]
-	def validate(self, value):
-		return self.compared<=value
+(options, args) = parser.parse_args()
 
-# individual flow validation (specific)
-class MinDelayValidation:
-	def __init__(self, v):
-		self.compared=v["target"]
-	def validate(self, flow):
-		return self.compared<=flow[5]
-
-
-
-# class testing tcptrace results
-# the inheriting class should implement get_tested_value(self, yml)
-class TcptraceTest: 
-	def __init__(self, yml, trace):
-		self.yml = yml["validations"]
-		self.trace = trace
-	# performs a validation found in the yml file.
-	def validate(self):
-		for val in self.yml:
-			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"
-class NumberOfFlowsTest(TcptraceTest):
-	def get_tested_value(self, yml):
-		return self.trace.number_of_flows
-
-class FlowsTest(TcptraceTest):
-	def get_tested_value(self, yml):
-		return self.trace.flows[yml["index"]]
-
-
-class TcptraceChecker:
-	def __init__(self, yml, trace):
-		self.yml = yml["tcptrace"]
-		self.trace = trace
-	def check(self):
-		for test in self.yml:
-			name=test["test"].title().replace("_","")+"Test"
-			klass = globals()[name]
-			r = klass(test, self.trace)
-			r.validate()
-
-
-
-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
+# initialise flags values
+tests_dir=options.tests_dir.rstrip("/")
+logs_dir=options.logs_dir.rstrip("/")
 
+# take timestamp, used as subdirectory in logs_dir
 timestamp=datetime.datetime.now().isoformat()
-#topoFile=generateTopo()
-#print(topoFile)
-#xpFile=generateXp()
-#print(xpFile)
 
-topoFile="./conf/topo/simple_para"
-xpFile="./conf/xp/4_nc"
+for test_name in [name for name in os.listdir(tests_dir) if os.path.isdir(os.path.join(tests_dir, name))]:
+	# initialise files defining the experience and test
+	test_dir =  tests_dir + "/" + test_name
+	xpFile = test_dir+"/xp"
+	topoFile = test_dir+"/topo"
+	validation_file=test_dir+"/validation.yml"
+	destDir=logs_dir+"/"+timestamp+"/"+test_name
+	if not os.path.exists(destDir):
+		os.makedirs(destDir)
 
-#MpXpRunner(MpTopo.mininetBuilder, topoFile, xpFile)
+	print "Running " + test_dir
+	# run the experience
+	MpXpRunner(MpTopo.mininetBuilder, topoFile, xpFile)
 
-destDir="/tmp/dest"
-if not os.path.exists(destDir):
-	os.makedirs(destDir)
+	#copy xp, topo and validation to log
+	copy(topoFile,destDir) 
+	copy(xpFile,destDir) 
+	copy(validation_file,destDir) 
+	#copy log files
+        for l in ["client.pcap" ,"command.log" ,"upmc.log" ,"upms.log" ,"client.pcap" ,"netcat_server_0.log" ,"netcat_client_0.log"]:
+		copy(l,destDir) 
 
-#copy log files
-copy("client.pcap",destDir) 
-#copy xp and topo
-copy(topoFile,destDir) 
-copy(xpFile,destDir) 
+	# Run validations
+	with open(validation_file, 'r') as f:
+		validations = load(f)
+	for k in validations.keys():
+		# Identify checker class
+		name = k.title().replace("_","")+"Checker"
+		klass= globals()[name]
+		# instantiate checker with validations and test_name
+		checker = klass(validations, test_name)
+		if checker.check():
+			print checker.logs
+		else:
+			print checker.logs
 
-#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_checker = TcptraceChecker(validations, t )
-print "WILL VALIDATE"
-tcptrace_checker.check()
+
+
+#tcptrace_checker = TcptraceChecker(validations, t )
+#print "WILL VALIDATE"
+#tcptrace_checker.check()
 
 #for v  in validations["tcptrace"]:
 #	print dump(v)
 
 # /usr/local/bin/mptcptrace -f /tmp/dest/client.pcap -G20 -F3 -r7 -s -S -a
+
+
+
+# Here are functions that can be used to generate topo and xp files:
+#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
+
+#topoFile=generateTopo()
+#print(topoFile)
+#xpFile=generateXp()
+#print(xpFile)
+
diff --git a/src/validation.yml b/src/tests/base/validation.yml
similarity index 88%
rename from src/validation.yml
rename to src/tests/base/validation.yml
index 3327d18..9a5725e 100644
--- a/src/validation.yml
+++ b/src/tests/base/validation.yml
@@ -7,4 +7,4 @@ tcptrace:
     validations:
       - name: "min_delay"
         index: 1
-        target: 7000
+        target: 29000