Round-trip delay
TIME REQUIRED TO RECEIVE A RESPONSE TO A QUERY ACROSS A COMMUNICATION SYSTEM
Round-trip time; Response time (telecommunications); Ping time; Ping delay; Round trip time; Round Trip Light Time; Round trip delay; Round-trip-time; Round-trip latency; Round-trip delay time
In telecommunications, round-trip delay (RTD) or round-trip time (RTT) is the amount of time it takes for a signal to be sent plus the amount of time it takes for acknowledgement of that signal having been received. This time delay includes propagation times for the paths between the two communication endpoints.