Comparative study of blocking mechanisms for packet switched Omega networks

Authors:
D. C. Vasiliadis;G. E. Rizos;S. V. Margariti;L. E. Tsiantis
Affiliations:
University of Peloponnese, Department of Computer Science and Technology, Tripolis, Greece;University of Peloponnese, Department of Computer Science and Technology, Tripolis, Greece;University of Ioannina, Computer Science Department, Ioannina, Greece;Hellenic Open University, Faculty of Science and Technology, Patra, Greece
Venue:
EHAC'07 Proceedings of the 6th WSEAS International Conference on Electronics, Hardware, Wireless and Optical Communications
Year:
2007

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Abstract

Omega Networks are a famous subclass of blocking Multistage Interconnection Networks (MINs). They have been recently identified as an efficient interconnection network for a switching fabric of communication structures such as gigabit ethernet switch, terabit router, and ATM switch. Interconnection network performance is also a key factor when constructing multiprocessor systems. In this paper we are interested in studying the influence of the blocking mechanisms on the main performance parameters of a typical 8×8 Omega Network with finite buffer size queues. We investigate the packet loss probability, the throughput and the latency of an Omega Network using both the Back-pressure and the Block-and-lost blocking Models respectively. This study can be used in future in order to analyse the performance of an actual MIN, where lost packets are resubmitted in the MIN.