Overview#

Round-Trip Time (RTT) in telecommunications or Round-trip delay time (RTD) is the length of time (Lifetime) it takes for a signal or packet to be sent plus the length of time it takes for an acknowledgement of that signal to be received. Round-Trip Time includes the propagation times for the paths between the two communication endpoints.

In space technology, the round-trip delay time or round-trip Lifetime is the time light (and hence any signal) takes to go to a space probe and return.

In the context of computer networks, the signal is generally a data packet, and the RTT is also known as the "ping" time. An internet user can determine the RTT by using the ping command.!! More Information There might be more information for this subject on one of the following:

• Latency
• RTT
• Round-trips