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A Simple Passive Method to Estimate RTT in High Bandwidth-Delay Networks

Authors:
Iria Prieto
Mikel Izal
Eduardo Magana
Daniel Morato

Keywords: RTT; passive; network; traffic

Abstract:
This paper presents a simple passive algorithm to estimate the Round-Trip-Time (RTT) of a TCP connection in high bandwidth-delay network scenarios. In these scenarios, a passive RTT estimator that can be used on captured packet traces is a useful tool for performance analysis. The algorithm is based on observing periodic RTT patterns in a TCP connection that is not filling its bandwidth x delay product. The results are compared to other passive methods such as the RTT of initial TCP handshake or TCP Timestamp option samples. The algorithm is shown to be effective and may be used in more scenarios than other methods thus, it provides a valuable tool to improve the amount of TCP connection whose RTT can be measured in a captured packet trace.

Pages: 6 to 11

Copyright: Copyright (c) IARIA, 2015

Publication date: October 11, 2015

Published in: conference

ISSN: 2308-443X

ISBN: 978-1-61208-435-0

Location: St. Julians, Malta

Dates: from October 11, 2015 to October 16, 2015