We propose a novel application-level virtual network architecture called VIOLIN (Virtual Internetworking on OverLay INfrastructure) . VIOLINs are isolated virtual networks created on top of an overlay infrastructure (e.g., PlanetLab). Entities in a VIOLIN include virtual end-hosts, routers

We propose a novel alternative to application-level overlays called VIOLIN, or Virtual Internetworking on OverLay INfrastructure. Inspired by recent advances in virtual machines, VIOLINs are virtual and isolated networks created on top of an overlay infrastructure such as PlanetLab. Entities in a

and demonstrate that our platform allows for the declarative specification of a large class of properties. Even though tools that are special-ized to checking particular properties perform better than our generic approach, we show with a real-world case study that our approach is practically feasible. We finally

-purpose hosting infrastructures such as PlanetLab and Amazon EC2 are available to host them. However, such infrastructures are piecemeal and heterogeneous in terms of virtualization technologies, which makes it hard to use them all together to their full potential. To ease this challenge, we implemented

detailed evaluation of its implementation, an empirical study of its overhead, and a case study demonstrating its use. 1

While many public cloud providers offer pay-as-you-go computing, their varying approaches to infrastructure, virtualization, and software services lead to a problem of plenty. To help customers pick a cloud that fits their needs, we develop CloudCmp, a systematic comparator of the performance

implementation suggest that the ability to run, poke, and debug in real time represents a qualitative change in workflow. We share supporting case studies culled from over 100 users, at 18 institutions, who have developed Software-Defined Networks (SDN). Ultimately, we think the greatest value of Mininet

This paper describes VINI, a virtual network infrastructure that allows network researchers to evaluate their protocols and services in a realistic environment that also provides a high degree of control over network conditions. VINI allows researchers to deploy and evaluate their ideas with real

using an interception layer that virtualizes network bindings and a delegation model. This paper describes the CANS architecture, and a case study involving a shrink-wrapped client application in a dynamically changing network environment where CANS improves overall user experience. 1

application) where network virtualization is used to support thin client applications for mobile devices to improve their QoS. By decoupling the service from the underlying resource infrastructure, it can be migrated closer to the current client locations while taking into account migration cost. This paper