PING longstep.cn (192.238.156.170) 56(84) bytes of data.
64 bytes from 192.238.156.170: icmp_seq=1 ttl=60 time=148 ms
64 bytes from 192.238.156.170: icmp_seq=2 ttl=60 time=148 ms
64 bytes from 192.238.156.170: icmp_seq=3 ttl=60 time=148 ms

--- longstep.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 148.592/148.640/148.730/0.321 ms