Network virtualization is a concept where physical resources are used to create virtual resources that are combined to form virtual networks. As one of the key enablers of the future Internet, network virtualization solves a number of issues associated with today’s networks. Concepts of network virtualization that are not restricted to virtualization technology, termed as overall concepts that ...

Virtualization plays a major role in helping the organizations to reduce the operational cost, and still ensuring improved efficiency, better utilization and flexibility of existing hardware. "Virtualization is both an opportunity and a threat says Patrick Lin, Senior director of Product Management for VMware" [4]. This paper presents a literature study on various security issues in virtualizat...

Virtualization is a term that refers to the abstraction of computer resources. The purpose of virtual computing environment is to improve resource utilization by providing a unified integrated operating platform for users and applications based on aggregation of heterogeneous and autonomous resources. More recently, virtualization at all levels (system, storage, and network) became important ag...

Virtualization basically means realizing several runtime environments in parallel but strictly isolated on a shared hardware. Nowadays, virtualization is an accepted standard and is used in the desktop and server market as a genuine alternative solution to several individual dedicated hardware systems. Through today’s availability of modern and highly efficient virtualization solutions, virtual...

This paper discusses and brings together a detailed analysis of virtualization implemented at various levels of computing infrastructure, keeping in mind and providing detailed transition process adopted for transition from a classical to virtualized data center. It focuses on emerging trends or areas related with storage virtualization. Further, its various network level virtualization based i...

Network virtualization is a technique that allows having multiple concurrent isolated networks sharing physical network resources. This work analyzes the main available virtualization platforms, Xen, OpenVZ, and VMware, for network virtualization. We compare their virtualization techniques, achieved performance in virtualizing computational resources and appropriateness for usage in a virtual n...

Virtualization is used to construct several virtual machines on a physical machine for high utilization and other benefits. The virtual machines should run independently within their own domain without disturbing the others’ execution. In order to achieve this purpose, two things are considered: virtualization-sensitive instruction and sensitive memory operation. Since the virtualization-sensit...

In recent decades, mixed-criticality systems have been widely adopted to reduce the complexity and development times of real-time critical applications. these systems, applications run on a separation kernel hypervisor, software element that controls execution different operating providing virtualized environment ensuring necessary spatial temporal isolation. The guest code can unmodified unawa...

Virtualization is a fundamental part of cloud computing, especially in delivering Infrastructure as a Service (IaaS). Exploring different techniques and architectures of the virtualization helps us understand the basic knowledge of virtualization and the server consolidation in the cloud with x86 architecture. This paper describes virtualization technologies, architectures and optimizations reg...