PING www.qushu.net (104.21.16.1) 56(84) bytes of data.
64 bytes from 104.21.16.1 (104.21.16.1): icmp_seq=1 ttl=60 time=6.44 ms
64 bytes from 104.21.16.1 (104.21.16.1): icmp_seq=2 ttl=60 time=3.86 ms
64 bytes from 104.21.16.1 (104.21.16.1): icmp_seq=3 ttl=60 time=3.86 ms

--- www.qushu.net ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 3.861/4.721/6.440/1.216 ms