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Media Streaming Observations: Trends in UDP to TCP Ratio

Authors:
DongJin Lee
Brian Carpenter
Nevil Brownlee

Keywords: network traffic statistics; observation; UDP to TCP ratio; flow; volume; port number; streaming

Abstract:
Widely used protocols (UDP and TCP) are observed for variations of the UDP to TCP ratio, elastic (and inelastic) flow behaviors, and of port number distribution, both over time and between different networks. The purpose of the study was to understand the impact of application trends, especially the growth in media streaming, on traffic characteristics. The results showed substantial variability but little sign of a systematic trend over time, and only wide spreads of port number usage. Despite the large network traces, the ratios appear to be rather dependent on application popularity (and their diversities), and so one cannot extrapolate from usage patterns on one network to those on another without allowing for at least as much variability as we have observed in this work.

Pages: 147 to 162

Copyright: Copyright (c) to authors, 2010. Used with permission.

Publication date: April 6, 2011

Published in: journal

ISSN: 1942-261x