Iperf is a tool used to measure maximum TCP bandwidth between a client and server. LSS maintains an iperf server that can be used to report information about bandwidth, delay jitter, and datagram loss.

• Download
• Using Iperf
• Using Iperf as a Server

Download

LSS currently runs iperf v2.0.2 as a daemon. You can download iperf from Iperf's Homepage or from the locally hosted copies below. Only iperf v1.7.0 is available as a binary at this time.

• Iperf 2.0.2 Source Code
• Iperf 1.7.0 Source Code
• Iperf 1.7.0 for Windows Binary
• Iperf 1.7.0 for Mac OS X Binary

Using Iperf

Command Line: iperf -c lss.rutgers.edu

Results should look like the following:

------------------------------------------------------------
Client connecting to lss.rutgers.edu, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[  3] local (your ip) port (your port) connected with 128.6.219.39 port 5001
[  3]  0.0-10.0 sec    108 MBytes  90.6 Mbits/sec

Using Iperf as a Server

Command Line: iperf -s

This will run the iperf server on port 5001 (default). This machine's ip address can now be used as an alternate iperf server and provide another network point where bandwidth can be tested.

Blocked Addresses

The following addresses have been blocked to the iperf service due to scripting against the bandwidth testing utility. If this scripting is legitimate contact lan@lss.rutgers.edu to work out a suitable usage agreement.

• 88.198.39.50

For questions or comments about this site,
contact lan@lss.rutgers.edu

© 2005-2013 Rutgers, The State University of New Jersey. All rights reserved.

Last Updated: 10/18/2006