PING huaqianbei2.51.com (152.136.248.78) 56(84) bytes of data.
64 bytes from 152.136.248.78 (152.136.248.78): icmp_seq=1 ttl=52 time=276 ms
64 bytes from 152.136.248.78 (152.136.248.78): icmp_seq=2 ttl=52 time=276 ms
64 bytes from 152.136.248.78 (152.136.248.78): icmp_seq=3 ttl=52 time=276 ms

--- huaqianbei2.51.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 276.003/276.020/276.036/0.013 ms