A Dynamic Managed VPN Service: Architecture And Algorithms

Ravi Ravindran, Changcheng Huang, K. Thulasiraman
2006 2006 IEEE International Conference on Communications  
VPN as a managed service enables the service provider to offer more demanding and revenue generating services. Some of the more common managed VPN services known today include auto discovery, security and also a potential ability to perform on demand signaling. In this paper we try to tackle an important problem of service providers providing bandwidth service on demand on an IP/MPLS core network. We propose a managed VPN architecture for such a service highlighting the novelty in our
more » ... ty in our architecture. We concentrate on an important aspect of service definition called the topology abstraction service and define a new problem called the VPN core capacity sharing problem that arises in this context. We propose three schemes to solve this problem borrowing established results from graph theory. As part of our simulation study, we evaluate each of these strategies with different call arrival scenarios and present their results. I. VPN-CE VPN-PE VPN-PE VPN-CE VPN i, Subscribes to a Abstract topology service PE verifies Abstraction Service SLA and generates abstract topologies VPN i, Subscribes to a Abstract topology service PE Provide, QoS Abstract Topology, with Resource information PE Provide, QoS Abstract Topology, with Resource information VPN i, would use the Abstract topology to generate a call.
doi:10.1109/icc.2006.254783 dblp:conf/icc/RavindranHT06 fatcat:p4v6kidxwjhitmjztfuwzwi5um