TCP Performance in OBS Networks with Load Dependent Contention

Conference: Photonische Netze - 8. ITG-Fachtagung
05/07/2007 - 05/08/2007 at Leipzig, Germany

Proceedings: Photonische Netze

Pages: 8Language: englishTyp: PDF

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Gelpke, P.; Schlosser, M.; Patzak, E.; Buchta, H. (Fraunhofer Institute for Telecommunications - Heinrich-Hertz-Institut, Einsteinufer 37, 10587 Berlin, Germany)

In this paper we analyze the limits of effective throughput for TCP segments through an optical burst switching (OBS) network. Wavelength conversion and deflection routing are considered as contention resolution methods. The work shows that there is a strong interaction between the load dependant contention, leading to segment losses or segment reordering and the TCP congestion avoidance mechanisms. It also provides a consistent treatment of OBS contention resolution and TCP congestion avoidance.