PING hocvien.stanford.com.vn (112.78.2.42) 56(84) bytes of data.
64 bytes from s2d42.cloudnetwork.vn (112.78.2.42): icmp_seq=1 ttl=119 time=229 ms
64 bytes from s2d42.cloudnetwork.vn (112.78.2.42): icmp_seq=2 ttl=119 time=228 ms
64 bytes from s2d42.cloudnetwork.vn (112.78.2.42): icmp_seq=3 ttl=119 time=229 ms

--- hocvien.stanford.com.vn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 4343ms
rtt min/avg/max/mdev = 228.993/229.141/229.391/0.429 ms