$ ping -c 11 172.31.5.87
PING 172.31.5.87 (172.31.5.87) 56(84) bytes of data.
64 bytes from 172.31.5.87: icmp_seq=1 ttl=64 time=0.276 ms
（省略）
64 bytes from 172.31.5.87: icmp_seq=10 ttl=64 time=0.208 ms

--- 172.31.5.87 ping statistics ---
11 packets transmitted, 10 received, 9.09091% packet loss, time 10235ms
rtt min/avg/max/mdev = 0.203/0.214/0.276/0.020 ms
