PING ziyuan.n.shifen.com (223.109.81.162) 56(84) bytes of data.
64 bytes from 223.109.81.162 (223.109.81.162): icmp_seq=1 ttl=50 time=249 ms
64 bytes from 223.109.81.162 (223.109.81.162): icmp_seq=2 ttl=50 time=249 ms
64 bytes from 223.109.81.162 (223.109.81.162): icmp_seq=3 ttl=50 time=249 ms

--- ziyuan.n.shifen.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 249.047/249.319/249.518/0.610 ms