Exception: Please shut down the controller which is running on port 6653: Mininet
For following error: """ *** Creating network *** Adding controller -------------------------------------------------------------------------------- Caught exception. Cleaning up... Exception: Please shut down the controller which is running on port 6653: Active Internet connections (servers and established) tcp 0 0 0.0.0.0:6653 0.0.0.0:* LISTEN 1828/ovs-testcontro tcp 0 0 127.0.0.1:42042 127.0.0.1:6653 TIME_WAIT - -------------------------------------------------------------------------------- *** Removing excess controllers/ofprotocols/ofdatapaths/pings/noxes killall controller ofprotocol ofdatapath ping nox_cor...