Hi, I have just done the test with the command iperf3 and I get this :
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root@nanopiair:~# iperf3 -c 192.168.42.1
Connecting to host 192.168.42.1, port 5201
[ 4] local 192.168.42.113 port 44649 connected to 192.168.42.1 port 5201
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-1.00 sec 1.94 MBytes 16.3 Mbits/sec 0 112 KBytes
[ 4] 1.00-2.00 sec 1.88 MBytes 15.8 Mbits/sec 0 194 KBytes
[ 4] 2.00-3.00 sec 1.94 MBytes 16.3 Mbits/sec 0 276 KBytes
[ 4] 3.00-4.00 sec 1.84 MBytes 15.4 Mbits/sec 0 359 KBytes
[ 4] 4.00-5.00 sec 1.80 MBytes 15.1 Mbits/sec 0 448 KBytes
[ 4] 5.00-6.00 sec 1.94 MBytes 16.3 Mbits/sec 0 532 KBytes
[ 4] 6.00-7.00 sec 1.88 MBytes 15.8 Mbits/sec 0 626 KBytes
[ 4] 7.00-8.00 sec 2.00 MBytes 16.8 Mbits/sec 0 706 KBytes
[ 4] 8.00-9.00 sec 2.01 MBytes 16.9 Mbits/sec 0 796 KBytes
[ 4] 9.00-10.00 sec 1.88 MBytes 15.8 Mbits/sec 0 880 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 19.1 MBytes 16.0 Mbits/sec 0 sender
[ 4] 0.00-10.00 sec 18.8 MBytes 15.8 Mbits/sec receiver
iperf Done.
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thanks for your help