$ ping python-china.org PING python-china.org (50.116.29.127): 56 data bytes 64 bytes from 50.116.29.127: icmp_seq=0 ttl=48 time=388.736 ms 64 bytes from 50.116.29.127: icmp_seq=1 ttl=48 time=385.996 ms 64 bytes from 50.116.29.127: icmp_seq=2 ttl=48 time=388.307 ms 64 bytes from 50.116.29.127: icmp_seq=3 ttl=48 time=397.325 ms 64 bytes from 50.116.29.127: icmp_seq=4 ttl=48 time=412.756 ms