In order to measure your network bandwidth performance, you will need to use a tool called IPERF.

This is available for download for both Linux and Windows platforms.

  Download: iperf  2.0.5 for Windows

Iperf is a network bandwidth tool which can measure TCP and UDP bandwidth performance.

Iperf runs in a client-server setup between two or more points on a network (or over the internet).

Installation on Windows
  1. Download and extract the ZIP file to a folder (e.g.  C:\IPERF)
  2. Open a command prompt (Start - Run - cmd)
  3. Run the iperf application in server mode.
iperf -s -F M

For windows, a version of Iperf is available through a java based frontend, 'jperf'. 'jperf' may be downloaded from here, and extract the archive. To run, be sure Java is installed, and execute 'jperf.bat' in the extracted directory.


Iperf must first be executed in 'server' mode on the machine or network you're testing bandwidth to. Then iperf is execute in 'client' mode on the other, and upload bandwidth from the client to the server will be measured.

To execute iperf in server mode, simply pass the '-s' switch. Additionally, the '-f' switch can be passed to specified the format results should be displayed in ('M' for Megabytes, 'K' for Kilobytes); the default is kilobits per second.

iperf -s -f M

To execute in client mode, use the '-c' switch and supply the IP or hostname of the iperf server instance.

iperf -c -f M


Once JPerf is executed via jperf.bat, 'Client' or 'Server' can be selected to specify the mode. If running as a client, 'Server address' must be provided. Once the needed mode is selected, click 'Run iperf' to execute.

The default run options will execute 10 tests and plot the results.

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