PING www.qingfengfz.com (50.2.54.249) 56(84) bytes of data.
64 bytes from expert.bigsaleoncampus.com (50.2.54.249): icmp_seq=1 ttl=55 time=155 ms
64 bytes from expert.bigsaleoncampus.com (50.2.54.249): icmp_seq=2 ttl=55 time=155 ms
64 bytes from expert.bigsaleoncampus.com (50.2.54.249): icmp_seq=3 ttl=55 time=155 ms

--- www.qingfengfz.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 155.227/155.521/155.965/0.556 ms