PING overdue.aliyun.com (170.33.13.246) 56(84) bytes of data.
64 bytes from 170.33.13.246 (170.33.13.246): icmp_seq=1 ttl=58 time=12.2 ms
64 bytes from 170.33.13.246 (170.33.13.246): icmp_seq=2 ttl=58 time=8.94 ms
64 bytes from 170.33.13.246 (170.33.13.246): icmp_seq=3 ttl=58 time=8.88 ms

--- overdue.aliyun.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 8.888/10.038/12.280/1.589 ms