PING 10.138.15.81 (10.138.15.81) 56(84) bytes of data.
64 bytes from 10.138.15.81: icmp_seq=1 ttl=58 time=11.1 ms
64 bytes from 10.138.15.81: icmp_seq=2 ttl=58 time=10.9 ms
64 bytes from 10.138.15.81: icmp_seq=3 ttl=58 time=9.61 ms
64 bytes from 10.138.15.81: icmp_seq=4 ttl=58 time=9.99 ms
64 bytes from 10.138.15.81: icmp_seq=5 ttl=58 time=10.5 ms

--- 10.138.15.81 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4000ms
rtt min/avg/max/mdev = 9.611/10.442/11.154/0.590 ms