PING www.b20122.cn (156.236.227.249) 56(84) bytes of data.
64 bytes from 156.236.227.249 (156.236.227.249): icmp_seq=1 ttl=121 time=142 ms
64 bytes from 156.236.227.249 (156.236.227.249): icmp_seq=2 ttl=121 time=142 ms
64 bytes from 156.236.227.249 (156.236.227.249): icmp_seq=3 ttl=121 time=142 ms

--- www.b20122.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 142.457/142.591/142.723/0.108 ms