Citynet: Home
Citynet: SUPPORT
Performance and Bandwidth Testing for Data Circuits

IPERF Test Instructions for Windows XP

  1. Click Here to Get IPERF for Windows http://www.citynet.net/performance/iperf-1.7.0-win32.exe
  2. When prompted, choose the Run button.
  3. If you get a window referring to an "unknown publisher," click the Run button.
  4. When prompted to unzip the files, in the "Unzip to folder field," type C:\Temp
  5. Click the Unzip button.
  6. When the files are successfully unzipped, click the OK button.
  7. Click the Close button.
  8. From your computer’s Start Menu, select Run.
  9. Type cmd in the Open field and click the OK button.
  10. This will open a DOS window. at the DOS prompt, type: cd c:\
  11. At the DOS prompt, type: cd temp
  12. If you are testing a T1, DS1 or below, at the DOS prompt, type:

    iperf -c perftest-clmcoh.citynet.net -t 60 -b 1.5M
    or
    iperf -c perftest-pitbpa.citynet.net -t 60 -b 1.5M

    and press the ENTER key on your keyboard.
  13. If you are testing a circuit larger than a T1 or DS1, contact your Citynet representative for the correct test information.
  14. Upon completion of the test, forward the results to your Citynet representative via email. He or she may ask you to repeat the test periodically for monitoring purposes.
    • To copy the results of the test(s):
      • Click on the C:\ image in the top left of the DOS/CMD window.
      • Click on Edit from the menu.
      • Click on Select All
      • Click on the C:\ image in the top left of the DOS/CMD window.
      • Click on Edit from the menu.
      • Click on Copy.
      • Paste the information into a new email, a .txt file or a Word document.
Sample Results

This is a sample result for a 60 second test to Pitt overcasting the pipe max of 1470 with 1.5M. This test shows 24% jitter with 1863 datagrams lost of 7655 datagrams sent.

C:\>iperf -c perftest-pitbpa.citynet.net -t 60 -b 1.5M
(This is the command line that you typed)
WARNING: option -b implies udp testing
(This is an informational statement about the test option UDP - User Datagram Protocol)

------------------------------------------------------------
Client connecting to perftest-pitbpa.citynet.net, UDP port 5001
Sending 1470 byte datagrams
(This is an information statement of your connection location, port and amount of data sent)
UDP buffer size: 8.00 KByte (default)
(Explanation of Buffer)
------------------------------------------------------------
[1912] local 10.1.17.6 port 1762 connected with 69.43.32.27 port 5001
(This is an informational statement identifying the origin and destination)
[ ID] Interval Transfer Bandwidth
[1912] 0.0-60.0 sec 10.7 MBytes 1.50 Mbits/sec
(This states that within the 60 second interval, 10.7 MBytes of data were sent or 1.50 Mbits per second.)
[1912] Server Report:
[1912] 0.0-59.8 sec 8.12 MBytes 1.14 Mbits/sec 6.124 ms 1863/ 7655 (24%)
(This states that within the 59.8 second interval, 8.12 MBytes or 1.4 Mbits per second of data were received. 1863 datagrams of the 7655 datagrams sent were lost or 24% of the total.)
[1912] Sent 7655 datagrams
(This is the amount of data that attempted to reach other end.)



This is a sample result for a 15 second test to NS5 sending 5M of the 1470 pipe max (undercasting). This test shows 0% jitter and 0 datagram loss.

C:\>iperf -c ns5.citynet.net -t 15 -b5M

(This is the command line that you typed)
WARNING: option -b implies udp testing
(This is an informational statement about the test option UDP - User Datagram Protocol)
------------------------------------------------------------
Client connecting to ns5.citynet.net, UDP port 5001
Sending 1470 byte datagrams
(This is an information statement of your connection location, port and amount of data sent)
UDP buffer size: 8.00 KByte (default)
(Explanation of Buffer)
------------------------------------------------------------
[1912] local 10.1.0.252 port 42844 connected with 69.43.60.3 port 5001
(This is an informational statement identifying the origin and destination)
[ ID] Interval Transfer Bandwidth
[1912] 0.0-15.0 sec 8.94 MBytes 5.00 Mbits/sec
(This states that within the 15 second interval, 8.94 MBytes of data were sent or 5.00 Mbits per second.)
[1912] Server Report:
[1912] 0.0-15.0 sec 8.94 MBytes 5.00 Mbits/sec 0.936 ms 0/ 6379 (0%)
(This states that within the 15 second interval, 8.94 MBytes or 5.0 Mbits per second of data were received. 0 datagrams were lost.)
[1912] Sent 6379 datagrams
(This is the amount of data that was sent to the other end.)

Back to IPERF Overview

  Tariffs
Knowledge Base
Digital Phone FAQ
Network Status
Virus Information
Support Request Form
Digital Phone
Email Support
Voice Mail Support
National Access
Download Software
Internet Connection Wizard
Dial-up Setup Config
Connection Speed Problems
Modem Diagnostics
MAC Setup
Network Settings
ISDN Support
Performance Tests
CityVault Support