Network Virtualization promotes the development of new architectures and protocols by enabling the creation of multiple virtual networks on top of the same physical substrate. One of its main advantages is the use of isolation to limit the scope of attacks – that is, avoiding traffic from one virtual network to interfere with the others. However, virtual networks are still vulnerable to disrupt...

1389-1286/$ see front matter 2010 Elsevier B.V doi:10.1016/j.comnet.2010.12.011 ⇑ Corresponding author. E-mail addresses: [email protected] (I. H it-sudparis.eu (W. Louati), walid.benameur@it-s Ameur), [email protected] (D. Zeghla This paper addresses the provisioning of virtual resources in future networks relying on the Infrastructure as a service principle. Exact and h...

Developing and optimizing a virtual machine (VM) is a tedious task that requires many years of development. Although VMs share some common principles, such as a Just In Time Compiler or a Garbage Collector, this opportunity for sharing hash not been yet exploited in implementing VMs. This paper describes and evaluates VMKit, a first attempt to build a common substrate that eases the development...

Network Virtualization Environments have great potential for overcoming the current ossification of the Internet, fostering innovation, and allowing several concurrent architectures to run on the same physical network. This paper presents a novel physically inspired algorithm for efficiently solving the virtual network embedding problem of placing a virtual network over a substrate network. Com...

Network Virtualization has emerged as a solution for the Internet inability to address the required challenges caused by the lack of coordination among Internet service providers for the deployment of new services. The allocation of resources is one of the main problems in network virtualization, mainly in the mapping of virtual nodes and links to specific substrate nodes and paths, also known ...

The Mobile Operating System Substrate (MOSS) is a new system architecture for wireless mobile computing being developed at Harvard. MOSS provides highly efficient, robust and flexible virtual device access over wireless media. MOSS services provide mobile access to such resources as disks, CD ROM drives, displays, wired network interfaces, and audio and video devices. MOSS services are composed...

This paper initiates the study of adversarial topology inference with virtual network (VNet) embeddings in ISP networks. As an example, we sketch how to infer cactus graphs with VNet request complexity O(n). 1 Contribution Sketch An Internet Service Provider’s (ISP) network infrastructure properties often constitute a business secret, not only for a competitive advantage, but also because the d...

Spike synchrony, which occurs in various cortical areas in response to specific perception, action, and memory tasks, has sparked a long-standing debate on the nature of temporal organization in cortex. One prominent view is that this type of synchrony facilitates the binding or grouping of separate stimulus components. We argue instead for a more general function: a measure of the prior probab...

An Augmented Virtual Environment (AVE) fuses dynamic imagery with 3D models. The AVE provides a unique approach to visualize and comprehend multiple streams of temporal data or images. Models are used as a 3D substrate for the visualization of temporal imagery, providing improved comprehension of scene activities. The core elements of AVE systems include model construction, sensor tracking, rea...

An Augmented Virtual Environment (AVE) fuses dynamic imagery with 3D models. An AVE provides a unique approach to visualizing spatial relationships and temporal events that occur in real-world environments. A geometric scene model provides a 3D substrate for the visualization of multiple image sequences gathered by fixed or moving image sensors. The resulting visualization is that of a world-in...