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PlanetLab is a global overlay network for developing and accessing broad-coverage network services. Our goal is to grow to 1000 geographically distributed nodes, connected by a disverse collection of links. PlanetLab allows multiple service to run concurrently and continuously, each in its own slice of PlanetLab. This paper discribes our initial(More)
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(More)
PlanetLab is a geographically distributed overlay network designed to support the deployment and evaluation 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 vir-tualization, whereby each service runs in an isolated slice of(More)
This paper reasons about naming systems as specialized inference mechanisms, It describes a preference)-zierarch.v that can be used to specify the structure of a naming system's inference mechanism and defines criteria by which different naming systems can be evaluated, For example, the preference hierarchy allows one to compare naming systems based on how(More)
Virtualization is an essential technology in modern datacenters. Despite advantages such as security isolation, fault isolation, and environment isolation, current virtualization techniques do not provide effective performance isolation between virtual machines (VMs). Specifically, hidden contention for physical resources impacts performance differently in(More)
that performs the bridging function is introduced. Second, we separate the signaling and data plane functions to improve the performance and support mobility. Third, to provide transparency to the upper layer applications, identifier locator split happens in network layer. A Hierarchical URI-like Identifier (HUI) is used by the upper layers and is mapped to(More)
Virtual worlds use simulation to create a fully-immersive 3D space in which users interact and collaborate in real time. It is still a great challenge to scale virtual worlds to provide rich user experiences, high level of realism, and innovative usages. There are three unique simulation requirements in scaling virtual worlds: (1) large-scale, real time and(More)
Virtual environments are currently limited to no more than a hundred interacting users by the simulator-centric server architectures used for many of these applications. There are some potential new usages such as virtual concerts and sporting events involving hundreds or thousands of users and we seek to enable these exciting new applications. We propose a(More)
Generation Internet). we present several design enhancements for MILSA which include a hybrid architectural design that combines " core-edge separation approach " and " split approach " , a security-enabled and logically oriented hierarchical identifier system, a three-level identifier resolution system, a new hierarchical code based design for locator(More)