PING pro-changsha1.cn.roowei.com (208.98.40.25) 56(84) bytes of data.
64 bytes from 208.98.40.25: icmp_seq=1 ttl=59 time=150 ms
64 bytes from 208.98.40.25: icmp_seq=2 ttl=59 time=150 ms
64 bytes from 208.98.40.25: icmp_seq=3 ttl=59 time=150 ms

--- pro-changsha1.cn.roowei.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2156ms
rtt min/avg/max/mdev = 150.054/150.188/150.389/0.347 ms