PING www.robam-bj.com.cn (38.11.252.249) 56(84) bytes of data.
64 bytes from 38.11.252.249 (38.11.252.249): icmp_seq=1 ttl=122 time=242 ms
64 bytes from 38.11.252.249 (38.11.252.249): icmp_seq=2 ttl=122 time=240 ms
64 bytes from 38.11.252.249 (38.11.252.249): icmp_seq=3 ttl=122 time=240 ms

--- www.robam-bj.com.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 240.326/241.176/242.310/0.834 ms