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=214 ms
64 bytes from 42.187.161.231 (42.187.161.231): icmp_seq=2 ttl=51 time=218 ms
64 bytes from 42.187.161.231 (42.187.161.231): icmp_seq=3 ttl=51 time=225 ms

--- ngx-fan.op.ganji.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 214.919/219.851/225.938/4.572 ms