iperf actually *does* do that. It initiates a TCP control connection and then does load testing using UDP.
On 08.08.2017 09:20, Tobias Brunner wrote: > Hi Jaehong, > >> And if I do udp iperf3 testing on port 4001, from client to server >> >> Somehow the all the SA is up and TCP control packets flows but not the >> UDP data traffic. > Why should there be TCP control packets if you do UDP testing? At least > iperf doesn't do that. Are you sure you don't use the tool incorrectly? > > Regards, > Tobias
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