The Accurate Hose Model for VPN Provisioning

This work considers the problem of VPN provisioning, focusing on the process of dimensioning the links belonging to the route that connects VPN endpoints, according to the specified traffic demands. To accomplish this, we propose a new model, the Accurate Hose, which can take into consideration a complete or partial traffic matrix and 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 will be the VPN provisioning achieved.