A New Approach to Network Function Virtualization

Most existing virtual network (VN) provisioning approaches assume a single administrative domain and therefore, VN deployments are limited to the geographic footprint of the substrate provider. To enable wide-area VN provisioning, network virtualization architectures need to address the intricacies of inter-domain aspects, i.e., how to provision VNs with limited control and knowledge of any asp...

Cloud computing enables a transparent access to information technology (IT) services such that the users do not need to know the location and characteristics of the relevant resources. While IT resource virtualization and service abstraction have been widely investigated, data transport within the cloud and its efficient control have not received much attention in the technical literature. In f...

Experiments performed on a network provide an exact performance of network algorithms and protocols. While initial research ideas can be evaluated through analysis, simulations, and emulations, implementation and deployment of these ideas on a realistic environment helps in systematically identifying and addressing many practical problems that systems typically encounter. There is no substitute...

Dr. Tim R. Norton Simalytic Solutions, LLC CMG 2009 Paper 9103 Session 601 System Virtualization allows multiple O/S images to execute on a single physical host computer. Measuring the host resource usage is straightforward and the necessary tools are included with most virtualization environments. However, complexities introduced by the different virtualization techniques create problems with ...

PlanetLab is a geographically distributed overlay network designed to support the evaluation and deployment of planetary-scale network services. Two high-level goals shape its design. First, to enable a large research community to share the infrastructure, PlanetLab provides distributed virtualization, whereby each service runs in an isolated slice of PlanetLab’s global resources. Second, to su...

Network Functions Virtualization facilitates the automation of scaling softwarized network services (SNSs). However, realization such a scenario requires way to determine needed amount resources so that SNSs performance requisites are met for given workload. This problem is known as resource dimensioning, and it can be efficiently tackled by modeling. In this vein, paper describes an analytical...

In this paper, we propose and implementVirtual Network Service (VNS), a value-added network service for deploying virtual private networks (VPN) in a managed wide area IP network. The key feature of VNS is its capability of providing a customer with a VPN that is customizable with management capabilities and performance properties comparable to a dedicated physical network. In addition, VNS ens...