PING estinfl.hefeiseo.com (43.155.64.74) 56(84) bytes of data.
64 bytes from 43.155.64.74 (43.155.64.74): icmp_seq=1 ttl=55 time=198 ms
64 bytes from 43.155.64.74 (43.155.64.74): icmp_seq=2 ttl=55 time=197 ms
64 bytes from 43.155.64.74 (43.155.64.74): icmp_seq=3 ttl=55 time=197 ms

--- estinfl.hefeiseo.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 197.650/197.776/198.027/0.404 ms