PING liuzhongyong.cn (172.67.197.45) 56(84) bytes of data.
64 bytes from 172.67.197.45 (172.67.197.45): icmp_seq=1 ttl=60 time=6.39 ms
64 bytes from 172.67.197.45 (172.67.197.45): icmp_seq=2 ttl=60 time=4.21 ms
64 bytes from 172.67.197.45 (172.67.197.45): icmp_seq=3 ttl=60 time=4.26 ms

--- liuzhongyong.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 4.210/4.957/6.395/1.018 ms