Forwarded mail....


Anyone using WiFi?

Kevin

---------- Forwarded message ----------
Date: Tue, 10 Feb 2004 16:25:17 -0800
From: Amoolya <amoolya --at-- athenasemi.com>
To: kgibbs --at-- ncsa.uiuc.edu

hi,

I am new to iperf and using iperf 1.7 on windows 2000/XP. It works fine with
the bandwidth specified on the ethernet network. But the problem starts when
I run it in the 802.11b environment. I am trying to tet the bandwidth for
the wireless nic. When I run the following command on the server :

iperf -s <host> -u -n 2048K -b 30M -w 4M

I get the proper output with almost no loss and bandwidth upto 29.9Mbps

But when i run the similar thing on the laptop :

iperf -c <server> -u -n 2048K -b 30M -w 4M
the results are fluctuate wildly. Sometimes the bandwidth goes till 24 - 25
Mbps (when it manages to send all the packets) but most of the time it just
send about 160-190 packets and stops with a bandwidth of 5 or 9Mbps. with an
error saying  "write failed" Interrupted function call.

My question is there something I am not understanding about udp behaviour or
is it the driver problem.

Any help will be really appreciated. Also let me know if there is some other
tool i can use for what i am trying to do.

thanks
Amoolya



Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index