PING dns.321ba.net.cn (47.243.84.151) 56(84) bytes of data.
64 bytes from 47.243.84.151 (47.243.84.151): icmp_seq=1 ttl=57 time=217 ms
64 bytes from 47.243.84.151 (47.243.84.151): icmp_seq=2 ttl=57 time=216 ms
64 bytes from 47.243.84.151 (47.243.84.151): icmp_seq=3 ttl=57 time=216 ms

--- dns.321ba.net.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 216.471/216.701/217.143/0.312 ms