PING www.dotup.up_china.chemnet.com (222.73.8.48) 56(84) bytes of data.
64 bytes from 222.73.8.48 (222.73.8.48): icmp_seq=1 ttl=52 time=284 ms
64 bytes from 222.73.8.48 (222.73.8.48): icmp_seq=2 ttl=52 time=283 ms
64 bytes from 222.73.8.48 (222.73.8.48): icmp_seq=3 ttl=52 time=283 ms

--- www.dotup.up_china.chemnet.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 283.391/283.626/284.013/0.514 ms