Round Trip Time (RTT)
Round Trip Time (RTT) is the length time it takes for a data packet to be sent to a destination plus the time it takes for an acknowledgment of that packet to be received back at the origin. The RTT between a network and server can be determined by using the
$ ping example.com PING example.com (126.96.36.199): 56 data bytes 64 bytes from 188.8.131.52: icmp_seq=0 ttl=55 time=25.050 ms 64 bytes from 184.108.40.206: icmp_seq=1 ttl=55 time=23.781 ms 64 bytes from 220.127.116.11: icmp_seq=2 ttl=55 time=24.287 ms 64 bytes from 18.104.22.168: icmp_seq=3 ttl=55 time=34.904 ms 64 bytes from 22.214.171.124: icmp_seq=4 ttl=55 time=26.119 ms --- google.com ping statistics --- 5 packets transmitted, 5 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 23.781/26.828/34.904/4.114 ms
In the above example, the average round trip time is shown on the final line as 26.8ms.