How to add --custom to start the mininet

[dmucby]

P4-Utils is a great tool to help me to start P4. And now I want to add the SFlow to monitor the flow and the mininet. So I must modify the args of the start mininet. I read the P4-Utils codes, but I don't know how to alter the args to do this. At first, I read the /p4utils/p4run.py and found that there was something written in the p4app.json. So I want to look for help to add the --custom sflow.py to the args when start the mininet.

[edgar-costa]

You mean sflow for the OVS switches?