PING www.m81.com.cn (156.250.134.67) 56(84) bytes of data.
64 bytes from 156.250.134.67 (156.250.134.67): icmp_seq=1 ttl=58 time=203 ms
64 bytes from 156.250.134.67 (156.250.134.67): icmp_seq=2 ttl=58 time=241 ms
64 bytes from 156.250.134.67 (156.250.134.67): icmp_seq=3 ttl=58 time=241 ms

--- www.m81.com.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 203.839/229.059/241.749/17.833 ms