iPerf3 is a powerful, open-source command-line tool used to measure network bandwidth between two endpoints. Unlike standard web-based speed tests, iPerf provides granular control over testing parameters like protocol (TCP/UDP), parallel streams, and test duration. Prerequisites for Running iPerf3
iPerf3 operates on a , meaning you must install it on two different machines—one to send data and one to receive it. iperf test upload and download speed