PING web20vn.com--beijing.liebiao.com (8.141.169.199) 56(84) bytes of data.
64 bytes from 8.141.169.199 (8.141.169.199): icmp_seq=1 ttl=89 time=284 ms
64 bytes from 8.141.169.199 (8.141.169.199): icmp_seq=2 ttl=89 time=284 ms
64 bytes from 8.141.169.199 (8.141.169.199): icmp_seq=3 ttl=89 time=284 ms

--- web20vn.com--beijing.liebiao.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 284.236/284.325/284.406/0.440 ms