PING astronomy.lamost.org (101.201.57.94) 56(84) bytes of data.
64 bytes from 101.201.57.94 (101.201.57.94): icmp_seq=1 ttl=53 time=222 ms
64 bytes from 101.201.57.94 (101.201.57.94): icmp_seq=2 ttl=53 time=227 ms
64 bytes from 101.201.57.94 (101.201.57.94): icmp_seq=3 ttl=53 time=218 ms

--- astronomy.lamost.org ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 218.993/223.078/227.964/3.745 ms