User manual

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Cooper Bussmann 945U-E Wireless Ethernet Modem & Device Server User Manual
101Rev Version 2.14
appENDIx D - IpErF ThrOUGhpUT TEST - ExT
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. Another application, called Jperf ,can also
be used, which gives a graphical interface for all results. The following instructions cover Iperf and Jperf, but not the
setup and configuration of the modems. Modem setup instructions are provided in earlier sections of this manual.
Materials
• 2 x Ethernet modems configured as a bridge.
• 2 x PC computers with Ethernet ports.
• Suitable power supplies for the Ethernet modems.
• Straight-through Ethernet cables.
• Iperf / Jperf application.
Installation
1. Download the application from the link, http://sourceforge.net/projects/iperf/, and save to a location on
yourPC.
2. Extract the zip file to the ROOT directory ( C:\ ) on your PC.
The extracted folder contains the main Iperf application as well as the Jperf graphical interface.
3. Copy the extracted folder to the second PC, or download to the second PC and extract as described in steps
1 and 2.
Iperf Application
The Iperf or Jperf application needs to be run on the PC or laptop at each end of the wireless link that is to be
tested.
1. At the server PC, open a command prompt by opening the Windows Start menu, choosing Run, and
entering“CMD”.
2. When the Command Prompt screen appears, set the directory to where the Iperf application resides (where it
was saved above) and from here run the Iperf server command “iperf –s”. See Figure 95.
Iperf server application is now running and waiting for a client connection.
NOTE If you get a security pop up on the PC, select Unblock for the application to run.
Figure 95 iperf –s Command