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A novel framework for IP DiffServ over optical burst switching networks
A Novel Framework for IP DiffServ over Optical Burst Switching Networks

Keywords: IP quality of service,differentiated service,per hop behavior,optical burst switching
IP
,服务质量,光突发交换,光纤通信

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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.

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