PING jrmc.cn (39.102.46.78) 56(84) bytes of data.
64 bytes from 39.102.46.78 (39.102.46.78): icmp_seq=1 ttl=51 time=209 ms
64 bytes from 39.102.46.78 (39.102.46.78): icmp_seq=2 ttl=51 time=223 ms
64 bytes from 39.102.46.78 (39.102.46.78): icmp_seq=3 ttl=51 time=233 ms

--- jrmc.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 209.657/222.050/233.165/9.647 ms