PING www.ptn.ac.th (150.95.29.38) 56(84) bytes of data.
64 bytes from 150.95.29.38 (150.95.29.38): icmp_seq=1 ttl=122 time=189 ms
64 bytes from 150.95.29.38 (150.95.29.38): icmp_seq=2 ttl=122 time=187 ms
64 bytes from 150.95.29.38 (150.95.29.38): icmp_seq=3 ttl=122 time=187 ms

--- www.ptn.ac.th ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 187.268/187.994/189.424/1.011 ms