cd targets/simple_router/flow_radar_bm; make cd ..; make bm cd flow_radar_bm; python change.py cd ..; make bm
change the paths in flow_radar/config.json to the right path in your system.
sudo python -m flow_radar.topo
In another terminal, use the following command to get the flow_radar data from switch
python -m flow_radar.get_flow_radar