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The Accurate Hose Model for VPN Provisioning

Denio MarizJudith KelnerDjamel H. SadokCarlos Kamienski

This work considers the problem of VPN provisioning and focuses on the process of dimensioning the links belonging to the route connecting VPN endpoints, in order to support the specified traffic demands. To accomplish this, we propose a new model, Accurate Hose, which takes into consideration a complete or partial traffic matrix. It supports group based bandwidth requirements, while maintaining the advantage of the point-to-multipoint style of shared provisioning and flexibility already seen in the traditional Hose model. Furthermore, it is shown that the Accurate Hose model reduces VPN resource allocation when compared to Hose and that the more precise the traffic specification is, the more optimized the achieved VPN provisioning becomes.

http://www.lbd.dcc.ufmg.br:8080/colecoes/sbrc/2005/012.pdf

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