PING www.158mw.cn (104.21.40.192) 56(84) bytes of data.
64 bytes from 104.21.40.192 (104.21.40.192): icmp_seq=1 ttl=60 time=4.00 ms
64 bytes from 104.21.40.192 (104.21.40.192): icmp_seq=2 ttl=60 time=3.94 ms
64 bytes from 104.21.40.192 (104.21.40.192): icmp_seq=3 ttl=60 time=3.91 ms

--- www.158mw.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 3.914/3.957/4.009/0.039 ms