@@ -88,7 +88,8 @@ def _header(name):

 def _bridge_list():

-    process = subprocess.Popen(['ovs-vsctl', 'list-br'], stdout=subprocess.PIPE)

+    process = subprocess.Popen(['sudo', 'ovs-vsctl', 'list-br'],

+                               stdout=subprocess.PIPE)

     stdout, _ = process.communicate()

     return stdout.split()