image processing over wireless

[suthomas1]

Hi,

One of our subsidaries has a setup where continuous video stream is generated from certain application servers processing real time image processing.

The setup goes this way; 3 PC's which run these image processing & are connected to a 3750G switch.

This switch is uplinked to an access point which then carries all these over wireless to the image processing main server.

About two weeks ago, when they tested this ,all 3 PC's had issues running together when operators viewed/worked upon the images on them.

When either one or two of them is turned off, the rest works fine with no disturbance( intermediate stop & start of images ).

Please help with suggestions on what could be the cause. I suspect bandwidth, but since this doesn't cover any WAN links, i doubt that bandwidth is actually the problem.

Thanks in advance.

[George Stefanick]

That's ugly .. 1 hope ?

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[Scott Fella]

Haha... I have learned to deal with it:)

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[George Stefanick]

It's not like you use your wireless for anything other than answering forum post anyway ! Lol

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[Scott Fella]

From my iphone to a PC running iperf, I get 1.90 Gbps through my MAP.

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[George Stefanick]

No better time to get your feet wet. Google iperf and you will find a wealth of info and how to use it. It's a great tool to analyze bandwidth.

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[Scott Fella]

This mignt help... I use jperf and here is instructions on using it.

http://www.techrepublic.com/blog/opensource/using-jperf-to-check-network-performance/3438

Thanks,

Scott

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[suthomas1]

Thanks both Scott & George for the inputs.

Now, i was trying to use jperf as i have never used it before.

This is the way i plan to test it for the wireless connection test ( for now, am testing jperf on my notebook );

- Connect a windows laptop and a MAC notebook both to a single wireless SSID

- installed jperf on windows laptop , however i am not certain how to do it on MAC

(tried searching for that but couldnt get much help)

Now, is this the correct way of testing?Do i actuall need jperf installed on both end points?

If so ,appreciate some inputs/ pointers for installation of jperf on MAC.

[George Stefanick]

Yes you need jperf installed on both ends. You would put one in server mode and the other in client .. Let me see if I can find an easy how to for ya ..

[George Stefanick]

Give these a read

http://m.techrepublic.com/blog/opensource/using-jperf-to-check-network-performance/3438

http://openmaniak.com/iperf.php

http://www.wlanpros.com/wp-content/uploads/2011/02/How-to-Guide-on-JPerf-and-IPerf1.pdf

[George Stefanick]

Scott is a show off ... Ssid:802.11r lol

[Scott Fella]

Hahaha... It helps me identify what SSID I'm on:)

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