PING vip.857zhibo1.net (104.21.49.38) 56(84) bytes of data.
64 bytes from 104.21.49.38 (104.21.49.38): icmp_seq=1 ttl=60 time=4.03 ms
64 bytes from 104.21.49.38 (104.21.49.38): icmp_seq=2 ttl=60 time=4.05 ms
64 bytes from 104.21.49.38 (104.21.49.38): icmp_seq=3 ttl=60 time=4.02 ms

--- vip.857zhibo1.net ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2004ms
rtt min/avg/max/mdev = 4.028/4.039/4.054/0.074 ms