An Efficient Architecture for Bandwidth Brokers in DiffServ Networks

TitleAn Efficient Architecture for Bandwidth Brokers in DiffServ Networks
Publication TypeJournal Article
Year of Publication2008
AuthorsBouras, C, Stamos, K
JournalInternational Journal of Network Management, Wiley InterScience, Vol. 18, Issue 1
Pagination 27 - 46

In this article we examine the architecture of an entity used for automatic management and provisioning of resources for DiffServ networks. We examine the existing literature and implementations in this area, focusing on the design choices made, and we propose an architecture for the design of Bandwidth Brokers that combines an adaptive admission control algorithm for increased utilization of network resources and a mechanism for reducing the complexity overhead that intends to be both simple and effective. Specifically, we present a novel architecture for the admission control module that aims at achieving a satisfactory balance between maximizing the resource utilization for the network provider and minimizing the overhead of the module. We complement our theoretical discussion with extensive experimental simulations for the proposed Bandwidth Broker components and analysis of the results. The simulations study the possible configurations of the proposed algorithm and also compare it with alternative admission control policies.