LabVIEW Communications System Design Suite

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802.11 Application Framework and iperf

Hello everyone,

I am currently trying to measure the link between two USRP 2953R with the help of iperf.

As stated in the Getting started Guide, this should be possible with the UDP Option as Data Source and Data Sink.

My setup is as follows:

Host Computer1 with USRP 2953R, Data Source and Sink are set to UDP

I set up an iperf3 server with:

iperf3 -s -B 127.0.0.1 -p 12346

 

Host Computer2 with USRP 2953R, Data Source and Sink set to UDP

I set up an iperf3 client with

iperf3 -c 127.0.0.1 -u -p 12345

 

This results in:  iperf3 error - unable to connect to server: Connection refused

I tried the UDP example with the video stream (https://www.youtube.com/watch?v=ZrCc7guGXRE) from youtube and it works.

 

My question is: How can I get iperf to work? Or are there other solutions to measure the same way iperf does?

 

Best,

Simon

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Hej wifiguy,

 

I suppose the problem is at iperf3 version 3, which does not open the UDP session.

I had the same problem. You can use iperf version 2, which worked fine for me.

Or you connect via TCP, by removing the -u flag for the client, and execute "iperf3 -c 127.0.0.1 -p 12345" instead.

Let me know if it helps.

 

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Hey a_bert,

sorry for this super late answer and thank you for your help.

I could not test your suggestion anymore but I hope this could help anybody in the future.

 

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