IPerf Network Testing

Iperf was orginally developed by NLANR/DAST as a modern alternative for measuring maximum TCP and UDP bandwidth performance. Iperf allows the tuning of various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, datagram loss.

• http://en.wikipedia.org/wiki/Iperf
• http://sourceforge.net/projects/iperf/
• http://sourceforge.net/projects/iperf/files/jperf/
• http://code.google.com/p/xjperf/

Latest Version Notes:

• iperf - iperf.exe and html docs (iperf version 2.0.5)
• jperf - java gui for iperf (includes jperf GUI version 2.0.2 & iperf 1.7.0)
• kperf_setup.exe (includes jperf GUI version 1.0 & iperf 2.0.2). Installed progam (includes start menu items) into c:\program files\iperf-2.0.2\

Tests For WANs where compression is used, use a non-compressible test file such as a large .jpg.

Server - Listen on TCP

iperf -s

Server - Listen on UDP

iperf -su

Client - 14 TCP Connections 1 minute

iperf -c <server ip> -P 14 -i 1 -p 5001 -l 8K -f m -t 60 -L 5001 -F C:\testfile 

Client - 14 UDP Connections 1 Mbit streams 1 minute

iperf -c <server ip> -u -P 14 -i 1 -p 5001 -l 1470 -f m -b 1M -t 60 -L 5001 -T 1 -F C:\testfile