iperf3 — Traffic generator for testing network bandwidth. More information: <https://iperf.fr/iperf-doc.php>.

Run iperf3 as a server

iperf3 {{[-s|--server]}}

Run an iperf3 server on a specific port

iperf3 {{[-s|--server]}} {{[-p|--port]}} {{port}}

Start bandwidth test

iperf3 {{[-c|--client]}} {{server}}

Run iperf3 in multiple parallel streams

iperf3 {{[-c|--client]}} {{server}} {{[-P|--parallel]}} {{streams}}

Reverse direction of the test. Server sends data to the client

iperf3 {{[-c|--client]}} {{server}} {{[-R|--reverse]}}