help="Overlay network address of the form x.x.x.x/yy. "
"Must correspond to the vsys_vnet tag on the PlanetLab slice")
parser.add_option("-C", "--controller", dest="controller",
help="Overlay network address of the form x.x.x.x/yy. "
"Must correspond to the vsys_vnet tag on the PlanetLab slice")
parser.add_option("-C", "--controller", dest="controller",