PING www.aa2.cn (23.224.74.121) 56(84) bytes of data.
64 bytes from 23.224.74.121: icmp_seq=1 ttl=54 time=145 ms
64 bytes from 23.224.74.121: icmp_seq=2 ttl=54 time=144 ms
64 bytes from 23.224.74.121: icmp_seq=3 ttl=54 time=144 ms

--- www.aa2.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 6343ms
rtt min/avg/max/mdev = 144.850/145.240/145.969/0.515 ms