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Virtual network approach to scalable IP service deployment and efficient resource management

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7 Author(s)
Yu Cheng ; Toronto Univ., Ont., Canada ; R. Farha ; A. Tizghadam ; Myung Sup Kim
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As the Internet evolves into a global all-service communication infrastructure, a key consideration is providing quality of service guarantees over IP with efficient resource utilization in a scalable, flexible, and automatic way. In this article we present a virtual network (VN) based architecture for scalable IP service deployment and efficient network resource management. Particularly considering a DiffServ/MPLS III transport network supporting multiple VNs, we propose a dynamic approach for efficient bandwidth sharing among VNs. The bandwidth sharing is service-level-agreement-based; the spare capacity in underloaded VNs is adaptively and efficiently utilized, and SLA compliance for all the VNs involved is always guaranteed.

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IEEE Communications Magazine  (Volume:43 ,  Issue: 10 )