title: Opendaylight shows wrong topology
body: <p>I' m working on an SDN lab, I have 3 interconnected switches (2NETFPGA+1Open Vswitch) with a host connected to each. I'm setting OpenDayLight as a controller but the problem is that I can not get the controller to see the topology: It just shows the switches! no hosts ! no connection between switches!</p>
  
  <p>I have installed these features in karaf: 
  odl-l2switch-all and
  odl-dlux-all</p>
  
  <p>Thanks for your help! 
  Regards</p>