PING procollidc.alexa.bj.cn (156.250.220.69) 56(84) bytes of data.
64 bytes from 156.250.220.69 (156.250.220.69): icmp_seq=1 ttl=56 time=204 ms
64 bytes from 156.250.220.69 (156.250.220.69): icmp_seq=2 ttl=56 time=201 ms
64 bytes from 156.250.220.69 (156.250.220.69): icmp_seq=3 ttl=56 time=201 ms

--- procollidc.alexa.bj.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2023ms
rtt min/avg/max/mdev = 201.763/202.587/204.186/1.130 ms