PING www.jdol.com.cn (39.97.208.120) 56(84) bytes of data.
64 bytes from 39.97.208.120 (39.97.208.120): icmp_seq=1 ttl=49 time=289 ms
64 bytes from 39.97.208.120 (39.97.208.120): icmp_seq=2 ttl=49 time=284 ms
64 bytes from 39.97.208.120 (39.97.208.120): icmp_seq=3 ttl=49 time=280 ms

--- www.jdol.com.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 280.860/284.910/289.698/3.671 ms