PING www.yt021.com (172.80.127.243) 56(84) bytes of data.
64 bytes from 172.80.127.243 (172.80.127.243): icmp_seq=1 ttl=121 time=145 ms
64 bytes from 172.80.127.243 (172.80.127.243): icmp_seq=2 ttl=121 time=142 ms
64 bytes from 172.80.127.243 (172.80.127.243): icmp_seq=3 ttl=121 time=142 ms

--- www.yt021.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 142.619/143.595/145.527/1.434 ms