PING www.xf021.com (61.172.245.84) 56(84) bytes of data.
64 bytes from 61.172.245.84 (61.172.245.84): icmp_seq=1 ttl=53 time=287 ms
64 bytes from 61.172.245.84 (61.172.245.84): icmp_seq=2 ttl=53 time=288 ms
64 bytes from 61.172.245.84 (61.172.245.84): icmp_seq=3 ttl=53 time=282 ms

--- www.xf021.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2459ms
rtt min/avg/max/mdev = 282.847/286.328/288.435/2.555 ms