User's Manual

Elpro Technologies 450U-E Wireless Ethernet Modem & Device Server User Manual
Rev Version 1.4.0 www.cooperbussmann.com/wirelessresources 87
Appendix G - External Iperf Test
This Appendix shows how to set up and use the Iperf application to test the throughput of Ethernet Modems.
Iperf is a tool used to measure the throughput and quality of a network link. Jperf can be used in conjunction with Iperf to
graphically display the Iperf data results. This instruction covers both Iperf and Jperf; it does not cover the setup and
configuration of the modems. Details of this can be found in previous sections.
Materials
2 x Ethernet Modems configured as a bridge
2 x PC Computers with Ethernet Ports and cables
Suitable Power Supplies for the Ethernet Modems
Iperf / Jperf Application
Installation
The Application can be downloaded from the following link, http://sourceforge.net/projects/iperf/ ,which you will need to
save to a location on your PC.
Extract the zip file to the ROOT directory on your PC, i.e. C:\. This folder contains the main Iperf application as well as the
Jperf graphical interface.
Copy this folder to the 2
nd
PC or download to the second PC and extract as per above instructions.
Iperf Applications
The Iperf /Jperf application needs to be run on the PC or laptop at each end of the wireless link that is to be tested.
When command prompt appears we need to set the directory to where the Iperf application resides, i.e. where it was
saved above, and from here run the Iperf server comm Figure 97.
Note: If you get a security pop up on PC select Unblock for the application to run.
This will run the Iperf application in Server mode which is configured to respond to any communication frames sent to it
from the Client.
On the Client PC open up a CMD window and change to the directory that Iperf is located, in this case it is c:/utils/iperf.
Enter the Iperf command to start the Client communication to the S c <IP address of Server PC> -w 65535.
See Figure 98.
Figure 97 - Iperf Server
Figure 98 - Iperf Client