PING www.jianfeyao.com (154.55.69.9) 56(84) bytes of data.
64 bytes from 154.55.69.9 (154.55.69.9): icmp_seq=1 ttl=54 time=146 ms
64 bytes from 154.55.69.9 (154.55.69.9): icmp_seq=2 ttl=54 time=144 ms
64 bytes from 154.55.69.9 (154.55.69.9): icmp_seq=3 ttl=54 time=145 ms

--- www.jianfeyao.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 144.925/145.535/146.680/0.867 ms