updated SDN chaining commands
diff --git a/src/emuvim/dcemulator/net.py b/src/emuvim/dcemulator/net.py
index d6bb5bb..0bef2fa 100755
--- a/src/emuvim/dcemulator/net.py
+++ b/src/emuvim/dcemulator/net.py
@@ -308,9 +308,9 @@
         ryu_of_port = '6653'
         ryu_cmd = 'ryu-manager'
         FNULL = open("/tmp/ryu.log", 'w')
-        #self.ryu_process = Popen([ryu_cmd, ryu_path, ryu_path2, ryu_option, ryu_of_port], stdout=FNULL, stderr=FNULL)
+        self.ryu_process = Popen([ryu_cmd, ryu_path, ryu_path2, ryu_option, ryu_of_port], stdout=FNULL, stderr=FNULL)
         # no learning switch
-        self.ryu_process = Popen([ryu_cmd, ryu_path2, ryu_option, ryu_of_port], stdout=FNULL, stderr=FNULL)
+        #self.ryu_process = Popen([ryu_cmd, ryu_path2, ryu_option, ryu_of_port], stdout=FNULL, stderr=FNULL)
         time.sleep(1)
 
     def stopRyu(self):