PING www.ahds.cn (122.51.226.247) 56(84) bytes of data.
64 bytes from 122.51.226.247 (122.51.226.247): icmp_seq=1 ttl=117 time=259 ms
64 bytes from 122.51.226.247 (122.51.226.247): icmp_seq=2 ttl=117 time=259 ms
64 bytes from 122.51.226.247 (122.51.226.247): icmp_seq=3 ttl=117 time=259 ms

--- www.ahds.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 259.341/259.552/259.913/0.641 ms