PING mp3.zing.vn (120.138.68.153) 56(84) bytes of data.
64 bytes from ptr.vng.vn (120.138.68.153): icmp_seq=1 ttl=55 time=240 ms
64 bytes from ptr.vng.vn (120.138.68.153): icmp_seq=2 ttl=55 time=240 ms
64 bytes from ptr.vng.vn (120.138.68.153): icmp_seq=3 ttl=55 time=240 ms

--- mp3.zing.vn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 240.600/240.788/240.989/0.588 ms