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Speedtest with iperf3

UploadUpload:

iperf3 -c speedtest.wtnet.de -p 52015200

DownloadDownload:

iperf3 -c speedtest.wtnet.de -p 52015200 -R

Both directions together:

iperf3 -c speedtest.wtnet.de -p 5200 --bidir

Sometimes it seems not working. Retry it later or use another port. wtnet.de allows ports 5200 - 5209.

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