diff --git a/mininet/test/test_nets.py b/mininet/test/test_nets.py
index 37094c4..db63404 100755
--- a/mininet/test/test_nets.py
+++ b/mininet/test/test_nets.py
@@ -7,14 +7,12 @@ import unittest
 
 from mininet.net import init, Mininet
 from mininet.node import Host, Controller, ControllerParams
-# from mininet.node import KernelSwitch
 from mininet.node import UserSwitch, OVSKernelSwitch
 from mininet.topo import SingleSwitchTopo, LinearTopo
 from mininet.log import setLogLevel
 
 SWITCHES = { 'user': UserSwitch,
              'ovsk': OVSKernelSwitch,
-            # 'kernel': KernelSwitch
 }
 
 
@@ -25,9 +23,7 @@ class testSingleSwitch( unittest.TestCase ):
         "Ping test with both datapaths on minimal topology"
         init()
         for switch in SWITCHES.values():
-            controllerParams = ControllerParams( '10.0.0.0', 8 )
-            mn = Mininet( SingleSwitchTopo(), switch, Host, Controller,
-                         controllerParams )
+            mn = Mininet( SingleSwitchTopo(), switch, Host, Controller )
             dropped = mn.run( mn.ping )
             self.assertEqual( dropped, 0 )
 
@@ -35,9 +31,7 @@ class testSingleSwitch( unittest.TestCase ):
         "Ping test with both datapaths on 5-host single-switch topology"
         init()
         for switch in SWITCHES.values():
-            controllerParams = ControllerParams( '10.0.0.0', 8 )
-            mn = Mininet( SingleSwitchTopo( k=5 ), switch, Host, Controller,
-                         controllerParams )
+            mn = Mininet( SingleSwitchTopo( k=5 ), switch, Host, Controller )
             dropped = mn.run( mn.ping )
             self.assertEqual( dropped, 0 )
 
@@ -49,13 +43,11 @@ class testLinear( unittest.TestCase ):
         "Ping test with both datapaths on a 5-switch topology"
         init()
         for switch in SWITCHES.values():
-            controllerParams = ControllerParams( '10.0.0.0', 8 )
-            mn = Mininet( LinearTopo( k=5 ), switch, Host, Controller,
-                         controllerParams )
+            mn = Mininet( LinearTopo( k=5 ), switch, Host, Controller )
             dropped = mn.run( mn.ping )
             self.assertEqual( dropped, 0 )
 
 
 if __name__ == '__main__':
-    setLogLevel('warning')
+    setLogLevel( 'warning' )
     unittest.main()