Observations on Round-Trip Times of TCP Connections

Phillipa Gill, Anirban Mahanti

Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS), Calgary, AB, July 2006

 

Abstract

Knowledge about properties of network traf- fic 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.

 

Manuscript

Pdf

 

Bibtex

Bib