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Bidirectional 1Gbps circuit test
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Check your firewall settings and NAT to ensure port 6001 is open to your host |
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iperf -c iperf.wiscnet.net -t 10 -P 4 -u -b 250m -i1 -r -L 6001 |
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By using the -u option, you have told iperf to use UDP packets, rather than TCP. UDP has no built in congestion avoidance, and iperf doesn't implement it either. When doing a UDP test, iperf requires that the bandwidth of the test be specified. If it isn't, it defaults to 1Mb/s. You can use the -b option to specify bandwidth to test. iperf will then send packets at the request rate for the requested period of time. The other end measures how many packets are received vs how many were sent and reports its results.
Installation Guides
Microsoft Windows
- Download and extract iperf2: iperf-2.0.9-win32.zip
- Right-click the downloaded iperf-2.0.9-win32.zip file and extract the contents of the .zip to any folder (seen here under \Users\Administrator)
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- Now you can run your desired iperf test:
Apple macOS
- Download and extract iperf-2.0.5-macos-x86_64.zip to any folder
- Open a terminal
- cd to your extracted iperf folder
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iMac:iperf-2.0.5-macos-x86_64 $ ./iperf -c iperf.wiscnet.net ------------------------------------------------------------ Client connecting to iperf.wiscnet.net, TCP port 5001 TCP window size: 128 KByte (default) ------------------------------------------------------------ [ 5] local 10.0.10.100 port 51961 connected with 205.213.14.56 port 5001 [ ID] Interval Transfer Bandwidth [ 5] 0.0-10.0 sec 184 MBytes 154 Mbits/sec iMac:iperf-2.0.5-macos-x86_64 $ |
*nix
- Many Lunix and Unix distros will have iperf in official repositories. Make sure to install iperf2 (iperf), not iperf3
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