PING dtvt.caothang.edu.vn (27.0.14.14) 56(84) bytes of data.
64 bytes from mx1414.superdata.vn (27.0.14.14): icmp_seq=1 ttl=55 time=244 ms
64 bytes from mx1414.superdata.vn (27.0.14.14): icmp_seq=2 ttl=55 time=244 ms
64 bytes from mx1414.superdata.vn (27.0.14.14): icmp_seq=3 ttl=55 time=244 ms

--- dtvt.caothang.edu.vn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 244.194/244.434/244.673/0.448 ms