PING a20.ccoo.net.cn (101.201.254.42) 56(84) bytes of data.
64 bytes from 101.201.254.42 (101.201.254.42): icmp_seq=1 ttl=46 time=346 ms
64 bytes from 101.201.254.42 (101.201.254.42): icmp_seq=2 ttl=46 time=343 ms
64 bytes from 101.201.254.42 (101.201.254.42): icmp_seq=3 ttl=46 time=349 ms

--- a20.ccoo.net.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 343.291/346.402/349.916/2.803 ms