PING 121.177.240.155 (121.177.240.155) 56(84) bytes of data.
64 bytes from 121.177.240.155: icmp_seq=1 ttl=56 time=446 ms
64 bytes from 121.177.240.155: icmp_seq=2 ttl=56 time=366 ms
64 bytes from 121.177.240.155: icmp_seq=3 ttl=56 time=287 ms

--- 121.177.240.155 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 287.641/366.867/446.048/64.673 ms