PING ns.siteos.cn (8.210.53.218) 56(84) bytes of data.
64 bytes from 8.210.53.218 (8.210.53.218): icmp_seq=1 ttl=57 time=257 ms
64 bytes from 8.210.53.218 (8.210.53.218): icmp_seq=2 ttl=57 time=256 ms
64 bytes from 8.210.53.218 (8.210.53.218): icmp_seq=3 ttl=57 time=256 ms

--- ns.siteos.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 256.112/256.752/257.950/0.847 ms