The FlowVisor is "a special purpose OpenFlow controller that acts as a transparent proxy between OpenFlow switches and '''multiple''' OpenFlow controllers". (http://www.openflowswitch.org/wk/index.php/FlowVisor) For more info, see these pages at the OpenFlow Consortium's site: * [http://www.openflowswitch.org/wk/index.php/FlowVisor General FlowVisor info] * [http://www.openflowswitch.org/wk/index.php/FlowVisor_run Running the FlowVisor] * [http://www.openflowswitch.org/wk/index.php/FlowVisor_config Configuring the Flowvisor]