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=4.44 ms
64 bytes from 172.67.219.36 (172.67.219.36): icmp_seq=2 ttl=60 time=4.06 ms
64 bytes from 172.67.219.36 (172.67.219.36): icmp_seq=3 ttl=60 time=4.08 ms

--- liuxu.dz.vancelle.net ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 4.067/4.200/4.445/0.173 ms