PING ziyuan.n.shifen.com (223.109.81.160) 56(84) bytes of data.
64 bytes from 223.109.81.160 (223.109.81.160): icmp_seq=1 ttl=50 time=257 ms
64 bytes from 223.109.81.160 (223.109.81.160): icmp_seq=2 ttl=50 time=255 ms
64 bytes from 223.109.81.160 (223.109.81.160): icmp_seq=3 ttl=50 time=255 ms

--- ziyuan.n.shifen.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2034ms
rtt min/avg/max/mdev = 255.608/256.175/257.234/0.749 ms