PING n030.cn (121.40.27.100) 56(84) bytes of data.
64 bytes from 121.40.27.100 (121.40.27.100): icmp_seq=1 ttl=99 time=310 ms
64 bytes from 121.40.27.100 (121.40.27.100): icmp_seq=2 ttl=99 time=310 ms
64 bytes from 121.40.27.100 (121.40.27.100): icmp_seq=3 ttl=99 time=311 ms

--- n030.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 310.594/310.907/311.440/0.378 ms