PING houxiaolan.dz.vancelle.net (104.21.67.90) 56(84) bytes of data.
64 bytes from 104.21.67.90 (104.21.67.90): icmp_seq=1 ttl=60 time=4.90 ms
64 bytes from 104.21.67.90 (104.21.67.90): icmp_seq=2 ttl=60 time=4.54 ms
64 bytes from 104.21.67.90 (104.21.67.90): icmp_seq=3 ttl=60 time=4.56 ms

--- houxiaolan.dz.vancelle.net ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2005ms
rtt min/avg/max/mdev = 4.544/4.670/4.906/0.175 ms