PING www.yk21.com (203.210.16.181) 56(84) bytes of data.
64 bytes from 203.210.16.181 (203.210.16.181): icmp_seq=1 ttl=61 time=262 ms
64 bytes from 203.210.16.181 (203.210.16.181): icmp_seq=2 ttl=61 time=261 ms
64 bytes from 203.210.16.181 (203.210.16.181): icmp_seq=3 ttl=61 time=261 ms

--- www.yk21.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 261.538/261.766/262.219/0.671 ms