PING aa2.cn (23.224.74.121) 56(84) bytes of data.
64 bytes from 23.224.74.121: icmp_seq=1 ttl=56 time=153 ms
64 bytes from 23.224.74.121: icmp_seq=2 ttl=56 time=153 ms
64 bytes from 23.224.74.121: icmp_seq=3 ttl=56 time=150 ms

--- aa2.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 6733ms
rtt min/avg/max/mdev = 150.793/152.456/153.295/1.175 ms