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Performance evaluation of Burst deflection in OBS networks using Multi-Topology routing

Authors:
Stein Gjessing

Keywords: Optical burst switching, Multi-Topology routing, Performance modeling, Burst loss rate, Burst deflection, Selfsimilar and Poisson arrival processes.

Abstract:
This paper evaluates the combination of Optical Burst Switching (OBS) and Multi-Topology (MT) routing. Using MT routing, a source router has a choice of sending IP packets on several different paths to the destination. In OBS networks, deflection may reduce burst loss rate. We evaluate a deflection method that is based on MT routing and that ensures that deflected bursts will not loop indefinitely in the network. The performance of the method is evaluated by simulation and compared to two other deflection methods as well as just discarding burst that can not be scheduled. Performance is evaluated in three irregular networks with different topology characteristics. Our main load is IP-packets that arrive according to a self similar process. These packets are assembled into bursts that are transmitted either when the burst buffer is full or a timer expires.

Pages: 109 to 114

Copyright: Copyright (c) IARIA, 2011

Publication date: January 23, 2011

Published in: conference

ISSN: 2308-4413

ISBN: 978-1-61208-113-7

Location: St. Maarten, The Netherlands Antilles

Dates: from January 23, 2011 to January 28, 2011