PING ngx-fan.op.ganji.com (42.187.161.231) 56(84) bytes of data.
64 bytes from 42.187.161.231 (42.187.161.231): icmp_seq=1 ttl=51 time=221 ms
64 bytes from 42.187.161.231 (42.187.161.231): icmp_seq=2 ttl=51 time=219 ms
64 bytes from 42.187.161.231 (42.187.161.231): icmp_seq=3 ttl=51 time=211 ms

--- ngx-fan.op.ganji.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 211.148/217.244/221.185/4.405 ms