Back Round-trip delay time Catalan Obousměrné zpoždění Czech Paketumlaufzeit German Χρόνος μετάδοσης μετ' επιστροφής Greek Tiempo de ida y vuelta Spanish تأخیر رفت و برگشت Persian Round-trip delay time French Round Trip Time Italian ラウンドトリップタイム Japanese Round Trip Time LMO
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.[1] In the context of computer networks, the signal is typically a data packet. RTT is commonly used interchangeably with ping time, which can be determined with the ping command. However, ping time may differ from experienced RTT with other protocols since the payload and priority associated with ICMP messages used by ping may differ from that of other traffic.
End-to-end delay is the length of time it takes for a signal to travel in one direction and is often approximated as half the RTT.
- ^ Round-trip delay time, Boulder, Colorado: National Telecommunications and Information Administration's Institute for Telecommunication Sciences, archived from the original on 2021-10-17, retrieved 2021-05-29