PING www.jf561.com (156.248.62.227) 56(84) bytes of data.
64 bytes from 156.248.62.227 (156.248.62.227): icmp_seq=1 ttl=122 time=238 ms
64 bytes from 156.248.62.227 (156.248.62.227): icmp_seq=2 ttl=122 time=236 ms
64 bytes from 156.248.62.227 (156.248.62.227): icmp_seq=3 ttl=122 time=236 ms

--- www.jf561.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 236.145/237.002/238.710/1.331 ms