Rev Version 1.4.1
105
105
Rev Version 1.4.1
Appendix
G - EXTERNAL IPERF TEST
This appendix provides instructions on 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 is an
application that can be used in conjunction with Iperf to graphically display the Iperf data results. The following
instructions cover both Iperf and Jperf, but do not cover the setup and configuration of the modems. Modem setup
instructions are provided earlier in this manual.
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
1. Downloaded the application from the link http://sourceforge.net/projects/iperf/, and save the application to a
location on your PC.
2. Extract the zip file to the root directory on your PC (C:\ directory).
The extracted folder contains the main Iperf application and the Jperf graphical interface.
3. Copy this folder to the second PC, or download to the second PC and extract, as described in steps 1 and 2.
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.
1. On the server PC, open the Windows Start menu, choose Run, and then enter
“CMD” to open a command
prompt.
2. When command prompt appears, set the directory to where the Iperf application is located (where it was
saved in the previous procedure).
3. Enter
“iperf – s” to run the Iperf server command (Figure 107).
This will run the Iperf application in server mode, which is configured to respond to any communication frames
sent to it from the client.
NOTE If a security messages appears on the PC, select
“Unblock” to allow the application to run.
Figure 107 Iperf Server
4. On the client PC, open up a command prompt window and change to the directory where the Iperf application
is located.