A Proposal of a Hybrid RSVP/COPS Protocol for End-to-End QoS Delivery in IntServ and DiffServ Connected Architecture

Chin-Ling CHEN  

IEICE TRANSACTIONS on Communications   Vol.E87-B    No.4    pp.926-931
Publication Date: 2004/04/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Network
quality of services,  differentiated services,  admission control and signaling protocol,  

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The issue of scalable Differentiated Services (DiffServ) admission control now is still an open research problem. We propose a new admission control model that can not only provide coarse grain Quality of Services (QoS), but also guarantee end-to-end QoS for assured service without per-flow state management at core routers within DiffServ domain. Associated with flow aggregation model, a hybrid signaling protocol is proposed to select the route satisfying the end-to-end QoS requirements. Simulation result shows that the proposed model can accurately manage resource, leading to much better performance when compared to other schemes.