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=52 time=254 ms
64 bytes from 61.172.245.84 (61.172.245.84): icmp_seq=2 ttl=52 time=252 ms
64 bytes from 61.172.245.84 (61.172.245.84): icmp_seq=3 ttl=52 time=252 ms

--- www.xf021.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2412ms
rtt min/avg/max/mdev = 252.325/253.001/254.150/0.913 ms