PING www.yim.com.cn (47.238.249.230) 56(84) bytes of data.
64 bytes from 47.238.249.230 (47.238.249.230): icmp_seq=1 ttl=121 time=251 ms
64 bytes from 47.238.249.230 (47.238.249.230): icmp_seq=2 ttl=121 time=249 ms
64 bytes from 47.238.249.230 (47.238.249.230): icmp_seq=3 ttl=121 time=249 ms

--- www.yim.com.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 249.723/250.290/251.415/0.982 ms