PING iknow.n.shifen.com (180.76.11.175) 56(84) bytes of data.
64 bytes from 180.76.11.175 (180.76.11.175): icmp_seq=1 ttl=57 time=257 ms
64 bytes from 180.76.11.175 (180.76.11.175): icmp_seq=2 ttl=57 time=255 ms
64 bytes from 180.76.11.175 (180.76.11.175): icmp_seq=3 ttl=57 time=256 ms

--- iknow.n.shifen.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 255.925/256.566/257.718/0.816 ms