PING all.189.cn.w.alikunlun.com (61.170.81.234) 56(84) bytes of data.
64 bytes from 234.81.170.61.broad.xw.sh.dynamic.163data.com.cn (61.170.81.234): icmp_seq=1
ttl=56 time=280 ms
64 bytes from 234.81.170.61.broad.xw.sh.dynamic.163data.com.cn (61.170.81.234): icmp_seq=2
ttl=56 time=278 ms
64 bytes from 234.81.170.61.broad.xw.sh.dynamic.163data.com.cn (61.170.81.234): icmp_seq=3
ttl=56 time=278 ms

--- all.189.cn.w.alikunlun.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 278.515/279.107/280.142/0.734 ms