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Measurement of the Per-flow Burst Ratio Parameter in IP Networks

Authors:
Dominik Samociuk

Keywords: burst ratio, packet networks, IP networks, packet loss

Abstract:
In this study, we investigate the burst ratio, a significant parameter in networking that characterizes the propensity of packet losses to occur in extended, consecutive sequences. The presence of prolonged sequences of packet losses can adversely affect multimedia streams, especially those of real-time nature. In packet networks, the burst ratio is often escalated due to packet buffer overflows that occur in routers and switches, which are inherent in these systems. To analyze the burst ratio, we focus on a per-flow approach, wherein we assess the burst ratio individually for each flow of packets passing through a network node. Additionally, we compare all the per-flow burst ratios with one another and with the burst ratio calculated for the multiplexed traffic. The study explores the impact of various factors on burst ratios. Specifically, we examine the influence of flow rates and their relative proportions, the standard deviation of interarrival times, buffer capacity, the load imposed on the buffer, and the distribution of service time. Particular emphasis is placed on models with non-Poisson flows, as they are not analytically tractable. To conduct this investigation, we utilize real-world data from networking scenarios rather than simulations, allowing us to draw more accurate and robust conclusions. The obtained burst ratio measurements provide valuable insights into the behavior of packet loss processes in complex network environments and aid in enhancing the performance of multimedia streams, particularly real-time applications.

Pages: 19 to 25

Copyright: Copyright (c) IARIA, 2024

Publication date: May 26, 2024

Published in: conference

ISSN: 2308-4413

ISBN: 978-1-68558-174-9

Location: Barcelona, Spain

Dates: from May 26, 2024 to May 30, 2024