data => msg

medium.py

@@ -70,7 +70,7 @@ def parse_ecn(e):
 ##############################################################
 
 def parse_new_messages(msg):
-    fields = struct.unpack('BBHHBB44s', data)
+    fields = struct.unpack('BBHHBB44s', msg)
     print("\nNew source message received")
     flux = fields[0]
     print("Flux ID : {}".format(flux))
@@ -84,7 +84,7 @@ def parse_new_messages(msg):
     print("Size of congestion Window : {}".format(win_size))
 
 def parse_new_messages_server(msg):
-    fields = struct.unpack('BBHHBB44s', data)
+    fields = struct.unpack('BBHHBB44s', msg)
     print("\nNew server message received")
     flux = fields[0]
     print("Flux ID : {}".format(flux))