How to Use Iperf on Windows for Network Testing

Iperf is a tool used to measure traffic characteristics like bandwidth, delay, throughput etc which is widely used as a Linux application. It can also be used with windows too.

Download Iperf from their official website.

https://iperf.fr/iperf-download.php#windows

Extract the contents..

Copy the contents to System32 folder.

Open Windows Command Prompt with administrative rights.

To establish Iperf Server, enter the command iperf3 -s

It will wait for traffic from a Client..

To establish Iperf Client, open another Command Prompt and type iperf3 -c 127.0.0.1

By this command I am just generating traffic to my loopback IP because I am just using my laptop for both just for testing this app. This 127.0.0.1 should be the server IP. Traffic statics will be displayed like the following on the Client..

Traffic statics will be displayed like the following on the Server..

There are various commands which could be used to test traffic characteristics.

Just --help will list the options.