A cluster-based resource provisioning model in virtual private networks

DRCN 2005). Proceedings.5th International Workshop on Design of Reliable Communication Networks, 2005. Pub Date : 2005-12-27 DOI:10.1109/DRCN.2005.1563894

Csaba Antal, J. Harmatos, Gábor Tóth

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引用次数: 2

Abstract

This paper presents a novel resource provisioning method for virtual private networks. Trunk and hose models are well known bandwidth provisioning models for VPNs but both have significant disadvantages if applied to large scale networks. The management complexity of the trunk model highly increases with the size of the network, while bandwidth efficiency of the hose model is often excessively low. The authors proposed an intermediate solution between hose and trunk models. By dividing the network into clusters and using cluster-based traffic description an appropriate equilibrium between management complexity and over provisioning could be found. A method for computing the necessary links capacities for a traffic given by cluster-based description is also presented, which makes it possible to design congestion free networks. Routing strategies were also suggested to further improve the performance of the new provisioning method. The applicability and limitations of the method and the effect of different routing strategies and fault tolerance are examined by simulating several test scenarios.

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虚拟专用网中基于集群的资源供应模型

提出了一种新的虚拟专用网资源分配方法。Trunk和hose模型是众所周知的vpn带宽分配模型，但如果应用于大规模网络，这两种模型都有明显的缺点。中继模式的管理复杂度随着网络规模的增大而急剧增加，而软管模式的带宽效率往往过低。作者提出了一种介于软管和主干模型之间的中间解决方案。通过将网络划分为集群并使用基于集群的流量描述，可以在管理复杂性和过度供应之间找到适当的平衡。提出了一种基于聚类描述的通信量的必要链路容量计算方法，为设计无拥塞网络提供了可能。为了进一步提高新分配方法的性能，还提出了路由策略。通过模拟多个测试场景，验证了该方法的适用性和局限性，以及不同路由策略和容错性的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

DRCN 2005). Proceedings.5th International Workshop on Design of Reliable Communication Networks, 2005.

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