White Papers

Observations on Round-Trip Times of TCP Connections

Overview Knowledge about properties of network traffic can be beneficial when studying network protocols. It enables realistic models of network traffic to be created and evaluations of current protocols to take place. This study examines trends in Round-Trip Times (RTTs) at a university Web server. Round-trip time is a particularly important characteristic of transport layer Internet traffic to measure because it impacts the throughput of TCP. In addition to examining trends of RTTs, this paper examines the relationship between RTT and the time between the SYNACK and ACK packets. The relationship between this heuristic for estimating RTT and actual measured RTTs is relevant for protocols such as TCP Vegas that need to estimate RTT early in a connection.

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Publisher: University of Calgary
File Format: PDF
Date Published: Jul 28, 2006
Format: White Papers
Topics: TCP - IP

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