PING liuxu.dz.vancelle.net (172.67.219.36) 56(84) bytes of data.
64 bytes from 172.67.219.36 (172.67.219.36): icmp_seq=1 ttl=60 time=4.62 ms
64 bytes from 172.67.219.36 (172.67.219.36): icmp_seq=2 ttl=60 time=4.93 ms
64 bytes from 172.67.219.36 (172.67.219.36): icmp_seq=3 ttl=60 time=4.70 ms

--- liuxu.dz.vancelle.net ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 4.626/4.755/4.935/0.131 ms