PING aina.net.cn (156.237.184.77) 56(84) bytes of data.
64 bytes from 156.237.184.77 (156.237.184.77): icmp_seq=1 ttl=120 time=216 ms
64 bytes from 156.237.184.77 (156.237.184.77): icmp_seq=2 ttl=120 time=216 ms
64 bytes from 156.237.184.77 (156.237.184.77): icmp_seq=3 ttl=120 time=216 ms

--- aina.net.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 216.355/216.599/216.934/0.452 ms