PING web20vn.com--zhangok1.cn.roowei.com (208.98.40.76) 56(84) bytes of data.
64 bytes from 208.98.40.76: icmp_seq=1 ttl=59 time=149 ms
64 bytes from 208.98.40.76: icmp_seq=2 ttl=59 time=150 ms
64 bytes from 208.98.40.76: icmp_seq=3 ttl=59 time=148 ms

--- web20vn.com--zhangok1.cn.roowei.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 7489ms
rtt min/avg/max/mdev = 148.372/149.559/150.673/0.992 ms