Hi Bernd, May I know the reason for choosing Iperf 2.0.4 as the server?
It would be better if you use the Iperf 1.7.0 as a client as well as a server for a dual test. Regards, Anand -----Original Message----- From: Bernd Prager [mailto:be...@prager.ws] Sent: Wednesday, December 17, 2008 1:27 AM To: iperf-users@lists.sourceforge.net Subject: [Iperf-users] dual mode settings Hi everybody, I am new to iperf and new to this list, please bear with me. I am trying to design a test for a network with extremely poor performance. Before I deploy that test I wanted to figure out what parameter I could use. I played around and ended up with some transfer of 50 KByte. That sounded reasonable. But when I run the test in dual mode (option -d) the server does not reply with the same settings. It transmits some 500MByte back. That would annihilate the current target network. Is there a way that I can limit the server response? I am running iperf version 2.0.4 as server and iperf version 1.7.0 on the client side. Thanks a lot for your help, -- Bernd (I attached the test I run in my local network for testing.) ./iperf.exe -c host -P 1 -i 5 -p 5001 -w 1k -l 1k -f k -t 50 -d -L 5001 WARNING: TCP window size set to 1024 bytes. A small window size will give poor performance. See the Iperf documentation. ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 1.00 KByte ------------------------------------------------------------ ------------------------------------------------------------ Client connecting to nysdarc01, TCP port 5001 TCP window size: 1.00 KByte ------------------------------------------------------------ [1732] local xxx.xxx.xxx.xxx port 1285 connected with xxx.xxx.xxx.xxx port 5001 [ ID] Interval Transfer Bandwidth iperf version 2.0.4 [1732] 0.0- 5.0 sec 51.0 KBytes 83.6 Kbits/sec [1732] 5.0-10.0 sec 50.0 KBytes 81.9 Kbits/sec [1732] 10.0-15.0 sec 50.0 KBytes 81.9 Kbits/sec [1732] 15.0-20.0 sec 50.0 KBytes 81.9 Kbits/sec [1732] 20.0-25.0 sec 50.0 KBytes 81.9 Kbits/sec [1732] 25.0-30.0 sec 50.0 KBytes 81.9 Kbits/sec [1732] 30.0-35.0 sec 50.0 KBytes 81.9 Kbits/sec [1732] 35.0-40.0 sec 50.0 KBytes 81.9 Kbits/sec [1732] 40.0-45.0 sec 50.0 KBytes 81.9 Kbits/sec [1732] 45.0-50.0 sec 50.0 KBytes 81.9 Kbits/sec [1732] 0.0-50.0 sec 502 KBytes 82.2 Kbits/sec [1960] local xxx.xxx.xxx.xxx port 5001 connected with xxx.xxx.xxx.xxx port 46227 [ ID] Interval Transfer Bandwidth [1960] 0.0- 5.0 sec 54860 KBytes 89883 Kbits/sec [1960] 5.0-10.0 sec 53835 KBytes 88203 Kbits/sec [1960] 10.0-15.0 sec 53795 KBytes 88138 Kbits/sec [1960] 15.0-20.0 sec 53570 KBytes 87769 Kbits/sec [1960] 20.0-25.0 sec 54600 KBytes 89457 Kbits/sec [1960] 25.0-30.0 sec 54738 KBytes 89683 Kbits/sec [1960] 30.0-35.0 sec 54769 KBytes 89734 Kbits/sec [1960] 35.0-40.0 sec 55103 KBytes 90281 Kbits/sec [1960] 40.0-45.0 sec 54536 KBytes 89352 Kbits/sec [1960] 0.0-50.0 sec 543782 KBytes 89145 Kbits/sec ---------------------------------------------------------------------------- -- SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Iperf-users mailing list Iperf-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/iperf-users ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Iperf-users mailing list Iperf-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/iperf-users