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Multi-threaded Packet Timestamping for End-to-End QoS Evaluation

Authors:
Péter Orosz
Tamás Skopkó

Keywords: Media traffic; QoS evaluation; Next Generation Networking; Computer network management; Network measurement; Linux

Abstract:
In this work, we are focusing on the enhancement of end-to-end QoS evaluation by improving the performance and the functionality of packet timestamping. Accordingly, a new software-based multi-layer timestamping method is introduced, which implements a multi-threaded offloading mechanism. Compared to the available generic kernel-time based solutions, it provides not only higher precision but also lower kernel level overhead and thus lower packet loss without using any special hardware component. These improvements make the proposed method a more efficient basis for multi-layer QoS measurement performed on-the-fly on the communication endpoint, which may result in a better QoS-QoE correlation. The efficiency of the solution is validated against the generic, kernel-time based timestamping using their Linux implementations.

Pages: 94 to 99

Copyright: Copyright (c) IARIA, 2013

Publication date: October 27, 2013

Published in: conference

ISSN: 2163-9027

ISBN: 978-1-61208-305-6

Location: Venice, Italy

Dates: from October 27, 2013 to October 31, 2013