A novel framework for IP DiffServ over optical burst switching networks

Authors:
Ke-Ping Long;Yun Li;Rodney S. Tucker;Chong-Gang Wang
Affiliations:
Special Research Centre for Optical Internet and Wireless Information Networks (COIWIN), School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications ( ...;Special Research Centre for Optical Internet and Wireless Information Networks (COIWIN), School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications ( ...;ARC Special Research Centre for Ultra Broadband Information Networks (CUBIN), Department of Electrical and Electronic Engineering, University of Melbourne, Victoria 3010, Australia;Hong Kong University of Science and Technology, Hong Kong Special Administrative Region 2010, P.R. China
Venue:
Journal of Computer Science and Technology
Year:
2004

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Abstract

This paper presents a novel framework for IP Differentiated Services (DiffServ) over optical burst switching (OBS), namely, DS-OBS. The network architecture, functional model of edge nodes and core nodes, the control packet format, a novel burst, assembly scheme at ingress nodes and scheduling algorithm of core nodes are presented. The basic idea is to apply DiffServ capable burst assembly at ingress nodes and perform different per hop behavior (PHB) electronic treatments for control packets of different QoS class services at core nodes. Simulation results show that the proposed schemes can provide the best differentiated service for expedited forwarding (EF), assured forwarding (AF) and best, effort (BE) services in terms of end-to-end delay, throughput and IP packet loss probability.