PING arc.tu.ac.th (209.15.108.137) 56(84) bytes of data.
64 bytes from 209.15.108.137 (209.15.108.137): icmp_seq=1 ttl=51 time=216 ms
64 bytes from 209.15.108.137 (209.15.108.137): icmp_seq=2 ttl=51 time=215 ms
64 bytes from 209.15.108.137 (209.15.108.137): icmp_seq=3 ttl=51 time=215 ms

--- arc.tu.ac.th ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2529ms
rtt min/avg/max/mdev = 215.916/216.012/216.166/0.109 ms