Computer Networks and ISDN Systems
A flexible model for resource management in virtual private networks
Proceedings of the conference on Applications, technologies, architectures, and protocols for computer communication
LCN '00 Proceedings of the 25th Annual IEEE Conference on Local Computer Networks
A Range-Based SLA and Edge Driven Virtual Core Provisioning in DiffServ-VPNs
LCN '01 Proceedings of the 26th Annual IEEE Conference on Local Computer Networks
Management of quality of service enabled VPNs
IEEE Communications Magazine
IEEE Network: The Magazine of Global Internetworking
Internet2 QBone: building a testbed for differentiated services
IEEE Network: The Magazine of Global Internetworking
Capacity planning in IP virtual private networks under mixed traffic
Computer Networks: The International Journal of Computer and Telecommunications Networking - Selected papers from the 3rd international workshop on QoS in multiservice IP networks (QoS-IP 2005)
A scalable intra-domain resource management architecture for DiffServ networks
Journal of High Speed Networks
Hybrid optimization for QoS control in IP Virtual Private Networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Capacity planning in IP Virtual Private Networks under mixed traffic
Computer Networks: The International Journal of Computer and Telecommunications Networking - Selected papers from the 3rd international workshop on QoS in multiservice IP networks (QoS-IP 2005)
QoS-IP'05 Proceedings of the Third international conference on Quality of Service in Multiservice IP Networks
Algorithms for stochastic optimization of multicast content delivery with network coding
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
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Customers of Virtual Private Networks (VPNs) over Differentiated Services (DiffServ) infrastructure are most likely to demand not only security but also guaranteed Quality-of-Service (QoS) in pursuance of their desire to have leased-line-like services. However, expectedly they will be unable or unwilling to predict the load between VPN endpoints. This paper proposes that customers specify their requirements as a range of quantitative services in the Service Level Agreements (SLAs). To support such services Internet Service Providers (ISPs) would need an automated provisioning system that can logically partition the capacity at the edges to various classes (or groups) of VPN connections and manage them efficiently to allow resource sharing among the groups in a dynamic and fair manner. While with edge provisioning a certain amount of resources based on SLAs (traffic contract at edge) are allocated to VPN connections, we also need to provision the interior nodes of a transit network to meet the assurances offered at the boundaries of the network. We, therefore, propose a two-layered model to provision such VPN-DiffServ networks where the top layer is responsible for edge provisioning, and drives the lower layer in charge of interior resource provisioning with the help of a Bandwidth Broker (BB). Various algorithms with examples and analyses are presented to provision and allocate resources dynamically at the edges for VPN connections. We have developed a prototype BB performing the required provisioning and connection admission.