diff --git a/src/mpLinkCharacteristics.py b/src/mpLinkCharacteristics.py
index bbb3801..91e601d 100644
--- a/src/mpLinkCharacteristics.py
+++ b/src/mpLinkCharacteristics.py
@@ -6,11 +6,12 @@ class MpLinkCharacteristics:
 	tcNetemParent = "5:1"
 	tcNetemHandle = "10:"
 
-	def __init__(self, id, delay, queueSize, bandwidth, back_up=False):
+	def __init__(self, id, delay, queueSize, bandwidth, loss, back_up=False):
 		self.id = id
 		self.delay = delay
 		self.queueSize = queueSize
 		self.bandwidth = bandwidth
+		self.loss = loss
 		self.netemAt = []
 		self.back_up = back_up
 
@@ -43,6 +44,7 @@ class MpLinkCharacteristics:
 		d = {}
 		d['bw'] = float(self.bandwidth)
 		d['delay'] = self.delay + "ms"
+		d['loss'] = float(self.loss)
 		d['max_queue_size'] = int(self.queueSize)
 		return d
 
@@ -51,8 +53,8 @@ class MpLinkCharacteristics:
 		s =  s + "\tDelay : " + str(self.delay) + "\n"
 		s =  s + "\tQueue Size : " + str(self.queueSize) + "\n"
 		s =  s + "\tBandwidth : " + str(self.bandwidth) + "\n"
+		s =  s + "\tLoss : " + str(self.loss) + "\n"
 		s =  s + "\tBack up : " + str(self.back_up) + "\n"
 		for l in self.netemAt:
 			s = s + "\t" + l.__str__() + "\n"
 		return s
-
diff --git a/src/mpParamTopo.py b/src/mpParamTopo.py
index 0d58e69..8402c76 100644
--- a/src/mpParamTopo.py
+++ b/src/mpParamTopo.py
@@ -51,11 +51,19 @@ class MpParamTopo(MpParam):
 			if k.startswith("path"):
 				tab = self.paramDic[k].split(",")
 				bup = False
+				loss = "0.0"
+				if len(tab) == 5:
+					loss = tab[3]
+					bup = tab[4] == 'True'
 				if len(tab) == 4:
-					bup = tab[3] == 'True'
-				if len(tab) == 3 or len(tab) == 4:
+					try:
+						loss = float(tab[3])
+						loss = tab[3]
+					except ValueError:
+						bup = tab[3] == 'True'
+				if len(tab) == 3 or len(tab) == 4 or len(tab) == 5:
 					path = MpLinkCharacteristics(i,tab[0],
-							tab[1], tab[2], bup)
+							tab[1], tab[2], loss, bup)
 					self.linkCharacteristics.append(path)
 					i = i + 1
 				else: