PING rong021.cn (104.195.13.105) 56(84) bytes of data.
64 bytes from 104.195.13.105 (104.195.13.105): icmp_seq=1 ttl=121 time=145 ms
64 bytes from 104.195.13.105 (104.195.13.105): icmp_seq=2 ttl=121 time=143 ms
64 bytes from 104.195.13.105 (104.195.13.105): icmp_seq=3 ttl=121 time=143 ms

--- rong021.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 143.230/143.937/145.338/1.082 ms