PING www.zuluo.net (8.212.52.31) 56(84) bytes of data.
64 bytes from 8.212.52.31 (8.212.52.31): icmp_seq=1 ttl=121 time=248 ms
64 bytes from 8.212.52.31 (8.212.52.31): icmp_seq=2 ttl=121 time=247 ms
64 bytes from 8.212.52.31 (8.212.52.31): icmp_seq=3 ttl=121 time=247 ms

--- www.zuluo.net ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 247.953/248.082/248.306/0.596 ms