PING lu-an.cn (172.87.218.197) 56(84) bytes of data.
64 bytes from 172.87.218.197 (172.87.218.197): icmp_seq=1 ttl=122 time=145 ms
64 bytes from 172.87.218.197 (172.87.218.197): icmp_seq=2 ttl=122 time=143 ms
64 bytes from 172.87.218.197 (172.87.218.197): icmp_seq=3 ttl=122 time=143 ms

--- lu-an.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 143.265/144.129/145.768/1.239 ms