PING 121.176.21.79 (121.176.21.79) 56(84) bytes of data.
64 bytes from 121.176.21.79: icmp_seq=1 ttl=57 time=246 ms
64 bytes from 121.176.21.79: icmp_seq=2 ttl=57 time=242 ms
64 bytes from 121.176.21.79: icmp_seq=3 ttl=57 time=242 ms

--- 121.176.21.79 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 242.791/243.904/246.099/1.653 ms