Below are my normal settings I use. Default port is 5001.
That can be changed with the -p parameter
Receiver settings: NTttcp.exe -r -m 16,*,10.20.30.40
16 threads run on any core, receiving on IP: 10.20.30.40
Sender settings: NTttcp.exe -s -m 16,*10.20.30.40 -t 30
16 threads run on any core, sending to IP: 10.20.30.40, for 30 seconds.