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iperf gives wrong output

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linux-howto

http://unix.stackexchange.com – I ran iperf on Windows and Linux machine to check bandwidth speed. Windows bandwidht speed, I explicitly set to 10Mbps/Full and Linux's BW speed is 100Mbps/Full. Following is the strange output I got: Client Side ( Linux Box ): iperf -c 192.168.1.72 -r Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) Client connecting to 192.168.1.72, TCP port 5001 TCP window size: 16.0 KByte (default) [ 5] local 192.168.1.70 port 52358 connected with 192.168.1.72 port 5001 [ ID] Interval Transfer Bandwidth [ 5] 0.0-10.2 sec 11.6 MBytes **9.60 Mbits/sec** [ 4] local 19 (HowTos)