gen2到落地机miraigrid的速度，这不正常吧

[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  8.50 MBytes  71.3 Mbits/sec                  
[  5]   1.00-2.00   sec  2.62 MBytes  22.0 Mbits/sec                  
[  5]   2.00-3.00   sec  3.62 MBytes  30.4 Mbits/sec                  
[  5]   3.00-4.00   sec  2.50 MBytes  21.0 Mbits/sec                  
[  5]   4.00-5.00   sec  3.62 MBytes  30.4 Mbits/sec                  
[  5]   5.00-6.00   sec  2.88 MBytes  24.1 Mbits/sec                  
[  5]   6.00-7.00   sec  10.4 MBytes  87.0 Mbits/sec                  
[  5]   7.00-8.00   sec  4.50 MBytes  37.7 Mbits/sec                  
[  5]   8.00-9.00   sec  5.00 MBytes  41.9 Mbits/sec                  
[  5]   9.00-10.00  sec  3.38 MBytes  28.3 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.22  sec  48.0 MBytes  39.4 Mbits/sec  172            sender