iperf3 a TCP, UDP, and SCTP network bandwidth measurement tool
iperf is a free tool for active measurements of the maximum achievable bandwidth on IP networks. It supports tuning of various parameters related to timing, protocols, and buffers.
For each test it reports the measured throughput / bitrate, loss, and other parameters.
Command line arguments
The following arguments are the one that we used in the workshop. All will work in iperf3 version 3.1, or newer. All of them will work on Windows, Linux, and macOS. There are a few others, that might be plattform specific.