#iperf -s
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Server listening on TCP port 5001
TCP window size: 8.00 KByte (default)
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[852] local 10.1.1.1 port 5001 connected with 10.6.2.5 port 33453
[ ID] Interval Transfer Bandwidth
[852] 0.0-10.6 sec 1.26 MBytes 1.03 Mbits/sec