PING www.petroleum.cn (162.210.101.21) 56(84) bytes of data.
64 bytes from 162.210.101.21 (162.210.101.21): icmp_seq=1 ttl=60 time=95.4 ms
64 bytes from 162.210.101.21 (162.210.101.21): icmp_seq=2 ttl=60 time=93.2 ms
64 bytes from 162.210.101.21 (162.210.101.21): icmp_seq=3 ttl=60 time=93.2 ms

--- www.petroleum.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 93.221/93.970/95.441/1.069 ms