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ZedBoard Hardware Design Ipfer Ethernet Performance Test PROBLEM
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Ipfer Ethernet Performance Test PROBLEM

Former Member
Former Member over 10 years ago

Hi,
i want to test the ethernet connection between my zedboard and my notebook. As described in the "Open Source Linux Ethernet Performance Test Tutorial" i use iperf. I use the prebuilt linux image from this tutorial.

On my notebook (windows 7, firewall disabled) i start iperf as server iperf.exe -s.

On the zedboard i use this command to start the client:

"./iperf3 --bandwidth 1000M --client 192.168.1.83 --format m --time 60"

i get the following response : "iperf3: error - unable to connect to server: Connection refused"

i tried to add the port command: "./iperf3 --bandwidth 1000M --client 192.168.1.83 --format m --time 60 -p 5001"
Now iperf connects to the server, ServerPrompt:"[  4] local 192.168.1.83 port 5001 connected with 192.168.1.151 port 42267". But then nothing happens, there are no datas from the client.

When i use a other computer with linux it works.
Do you have any idea?

Thanks

Max

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  • zedhed
    0 zedhed over 10 years ago

    Hi Max,

    Where does the iperf that you are running on your notebook come from?

    If it is an older version of iperf, you may be running into a compatibility issue.  From what I understand iperf3 messages are not meant to be backward compatible with older iperf 2 messages.  If you are running an older version of iperf under windows, that could explain the lack of data transfer between the two hosts.

    I was able to build iperf3 for Windows under Cygwin using the following instructions:

    ---------------------------------------
    Building iperf3 for Windows 7 (Cygwin):
    ---------------------------------------


    1) Clone the iperf code repository:

    $ git clone https://github.com/esnet/iperf.git


    2) Check out version 3.0.9 release tag:

    $ cd iperf
    $ git checkout -b 3.0.9 3.0.9


    3) Configure the build tree:

    $ ./configure CFLAGS=-static CXXFLAGS=-static


    4) Make the build tree:

    $ make


    5) Install the binaries into the staging folder:

    $ mkdir build
    $ make install DESTDIR=~/iperf/build/


    ---------------------------------------

    Can you confirm that you are running iperf3 on the Windows machine rather than an older version?

    Regards,

    -Kevin

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