Virtualization

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Synopsis: Ict: Computer: Computer simulation: Virtual reality: Virtualization:

%The consolidation or extreme virtualization of equipment makes it possible to do more with less, thereby taking the potential saving as high as 60%,if not higher.

pooling and outsourcing 14 The Innovation Biosphere of resources, development of outpatient medicine and telemedicine, rapid growth in secure storage needs, secure data processing and sharing, patient modeling and virtualization, personalized

This digitisation and virtualisation of museums, has created also new professional positions, such as cyber curators, that could not have existed ten years prior. 5. In the era of globalisation,

Cloud computing as a virtualisation infrastructure that offers unique opportunities to reduce the costs of delivering services over the Internet,

Cloud computing as a virtualisation infrastructure that offers unique opportunities to reduce the costs of delivering services over the Internet,

such as interactions with the real world through sensor/actuator networks, network virtualization and cloud computing, enhanced privacy and security features and advanced multimedia capabilities.

Higher degree of virtualisation for all systems: applications, services, networks, storage, content, resources and smart objects.

The Towards In-Network Clouds in Future Internet chapter explores the architectural co-existence of new and legacy services and networks, via virtualisation of connectivity and computation resources and self management capabilities,

On one hand, it aims at achieving a full interoperation among the different entities constituting the ICT environment, by means of the introduction of Semantic Virtualization Enablers.

This paper aims to explore the architectural co-existence of new and legacy services and networks, via virtualisation of connectivity and computation resources and self management capabilities,

In-Network Clouds, Virtualisation of Resources, Self management, Service plane, Orchestration plane and Knowledge plane. 1 Introduction The current Internet has been founded on a basic architectural premise, that is:

This paper aims to explore the architectural co-existence of new and legacy services and networks, via virtualisation of resources and self management capabilities,

In-Network virtualisation provides flexibility, promotes diversity, and promises security and increased manageability. We define In-Network clouds as an integral part of the differentiated Future Internet architecture,

Virtualisation Plane (VP), Management Plane (MP), Knowledge Plane (KP), Service Plane (SP), and Orchestration Plane (OP) as depicted in Fig. 1. These planes are new higher-level artefacts,

This implies that the Orchestration Plane may use very local knowledge to deserve a real time control as well as a more global knowledge to manage some long-term processes like planning. 2. 3 Virtualisation Plane Overview Virtualisation hides the physical characteristics 14,16 of the computing

This paper uses system virtualisation to provide virtual services and resources. System virtualisation separates an operating system from its underlying hardware resources;

resource virtualisation abstracts physical resources into manageable units of functionality. For example, a single physical resource can appear as multiple virtual resources (e g.,

, the concept of a virtual router, where a single physical router can support multiple independent routing processes by assigning different internal resources to each routing process;

Virtualisation enables optimisation of resource utilisation. However, this optimisation is confined to inflexible configurations within a single administrative domain.

This paper extends contemporary virtualisation approaches and aims at building an infrastructure in which virtual machines can be relocated dynamically to any physical node or server regardless of location, network,

The virtualisation plane consists of software mechanisms to abstract physical resources into appropriate sets of virtual resources that can be organised by the Orchestration Plane to form components (e g.,

the vspi and the vcpi (Virtualisation System Programming interface and Virtualisation Component Programming interface, respectively. A set of control loops is formed using the vspi and the vcpi,

Fig. 2. Virtualisation Control Loop Virtualisation System Programmability Interface (vspi. The vspi is used to enable the Orchestration Plane

Virtualisation Component Programming interface (vcpi. Each physical resource has associated an and distinct vcpi. The vcpi is fulfilling two main functions:

and to request virtual resources to be constructed from that physical resource by the vcpi of the Virtualisation Plane.

We note that the monitoring information retrieval is handled by the Virtualisation Plane. The reader collects the raw measurement data from all of the sensors of a CCP.

also part of the KP, provides functionality to add powerful and flexible monitoring facilities to system clouds (virtualisation of networks and services.

and service resources provided by an virtualisation environment. We have described also the management architectural and system model for our Future Internet,

Virtualisation Plane (VP), Management Plane (MP), Knowledge Plane (KP), Service Plane (SP) and Orchestration Plane (OP). The resulting software-driven control network

and relevant analysis on network virtualisation and service deployments were carried out on a large-scale testbed.

A vital component of such a virtualisation approach is a common management and monitoring interface of virtualised resources.

A Survey of Network Virtualization. Journal Computer networks: The International Journal of Computer and Telecommunications Networking 54 (5)( 2010) 15.

Using System Virtualization to Create Virtualized Networks. Electronic communications of the EASST 17,1 12 (2009), http://journal. ub. tu-berl. asst/article/view/218/219 J. Domingue et al.

The relationships between Network Virtualisation and Federation 16 21 22 23 and the relationship between Service virtualisation (service clouds) and federation 17 are the support of a new world of solutions defining the Future Internet.

it aims at achieving a full interoperation among the different entities constituting the ICT environment, by means of the introduction of Semantic Virtualization Enablers,

Future Internet architecture, Cognitive networks, Virtualization, Interoperation. 1 Introduction Already in 2005, there was the feeling that the architecture

, users, contents, services, network resources, computing resources, device characteristics) via virtualization and data mining functionalities; the metadata produced in this way are then input of intelligent cognitive modules

the Semantic Virtualization Enablers and the Cognitive Enablers. The Cognitive Enablers represent the core of the Cognitive Framework

They interact with Actors, Resources and Applications through Semantic Virtualization Enablers. The Semantic Virtualization Enablers are in charge of virtualizing the heterogeneous Actors,

Resources and Applications by describing them by means of properly selected, dynamic, homogeneous, context-aware and semantic aggregated metadata.

on the basis of the aggregated metadata provided by the Semantic Virtualization Enablers, take consistent control

The control and management decisions taken by the Cognitive Enablers are handled by the Semantic Virtualization Enablers,

Cognitive Future Internet Framework Actors Users Network Providers Prosumer Developers Content Providers Service Providers Applications Semantic Virtualization Enablers Cognitive Enablers Identity

thanks to the aggregated semantic metadata provided by the Semantic Virtualization Enablers, the control and management functionalities included in the Cognitive Enablers have a technology-neutral, multi-layer, multi-network vision of the surrounding Actors, Resources and Applications.

With reference to Fig. 2, the Sensing, Metadata Handling, Actuation and API functionalities are embedded in the Semantic Virtualization Enablers,

Interoperation among heterogeneous entities is achieved by means of their virtualization, obtained thanks to the introduction of Semantic Virtualization Enablers.

At the same time, the Cognitive Enablers, which are the core of the Cognitive Managers, can potentially benefit from information coming from all layers of all networks

for example, 4ward, Autoi OSKMV planes (Orchestration, Service Enablers, Knowledge management and Virtualisation planes) and the Content-Centric can use this model collaboratively.

or end user at a time. 5 Enhancing the Framework One important development in telecoms is virtualisation. Although the basic idea is longstanding,

Virtualisation is not suitable for all types of software, for instance new transport layer functionality, such as MPTCP and CONEX,

Virtualisation should similarly lower the cost of distribution in other words, it eases deployment. Another aspect is the interaction of a new protocol with existing protocols.

The chapter by Zseby et al. entitled Multipath Routing Experiments in Federated Testbeds demonstrates the practical usefulness of federation and virtualisation in heterogeneous testbeds.

In such an environment federation and virtualization of resources are key features that should be supported in a future Internet.

Network Virtualization (NV) techniques 5, 17 allow the establishment of such separate slices on top of a joint physical infrastructure (substrate.

Routing slices as an architectural concept is known as Transport Virtualization (TV) 23,24. These concepts have roots in the work on active networks,

Overcoming the internet impasse through virtualization. IEEE Computer, 34 41 (April 2005) 6. Anerousis, N.,Hjlmtysson, G.:

Network virtualization: Breaking the performance barrier. ACM Queue,(Jan./Feb. 2008) 18. Santos, T.,Henke, C.,Schmoll, C.,Zseby.

Re-sequencing Buffer Occupancy of a Concurrent Multipath Transmission Mechanism for Transport System Virtualization. In:

Using Concurrent Multipath Transmission for Transport Virtualization: Analyzing Path Selection. In: Proceedings of the 22nd International Teletraffic Congress (ITC), Amsterdam, Netherlands (Sep. 2010) J. Domingue et al.

providing a natural complement to the virtualization of resources-by setting up and tearing down composed services, based on negotiated SLAS.

new methods (related to embedded and/or autonomous management, virtualization of systems and network resources, advanced and cognitive networking of information objects),

Future Internet, Virtualization, Dynamic Provisioning, Virtual Infrastructures, Convergence, Iaas, Optical Network, Cloud 1 Introduction Over the years, the Internet has become a central tool for society.

and the virtualization paradigm with dynamic network provisioning as a way towards such a sustainable future Internet.

Central to this novel architecture is the infrastructure virtualization layer which abstracts, partitions and interconnects infrastructure resources contained in the physical infrastructure layer.

and managing the network resources constituting the Virtual Infrastructure) is closely interacting with the virtualization layer. 3. Finally,

Finally, another key element for the control plane is the interaction with the infrastructure-virtualization layer,

A Novel Architecture for Virtualization and Co-Provisioning of Dynamic Optical Networks and IT Services.

We assume a virtualisation-enabled data centre style configuration of server capacity, and a broad range of services in terms of relative priority, resource requirement and longevity.

Knowledge management and Virtualisation planes), presented in 3, to better monitor the networks, as the semantic information can directly be handled by the Net-Ontology and DL-Ontology layers.

like the Diverter, the Session Broker and the Virtualisation Broker. There are many others but these are essentials.

Based on virtualization, the network can offer enhanced transport and adaptation-capable services. This chapter will introduce

9. The virtualisation as a powerful tool to overcome the Internet ossification by creating overlays is discussed in 10-11.

while a more radical approach can also be envisaged towards full virtualization (i e. independent management and control per VCAN).

Overcoming the Internet Impasse through Virtualization. Computer 38 (4), 34 41 (2005) 11. Chowdhury, N m.,Boutaba, R.:

Network Virtualization: State of the art and Research Challenges. IEEE Communications Magazine 47 (7), 20 26 (2009) 12.

Management and technical policies will be developed to leverage virtualization which helps to migrate virtual infrastructure resources from one site to another based on power availability.

in comparison to electronic equipments such as routers and aggregators 4. The migration of virtual data centers over network nodes is indeed a result of a convergence of server and network virtualizations as virtual infrastructure management.

and converges server and network virtualizations. Whilst most of cloud management solutions in the market focus particularly on computing resources,

Renewable Energy Provisioning for ICT Services in a Future Internet 427 5 Federated Network GSN takes advantage of the virtualization to link virtual resources together to span multiple cloud and substrate types.

Virtualization techniques are shown to be the most appropriate solution to manage such a network and to migrate data centers following green energy source availability,

102 5. 5. 3 Virtualization Strategy...103 5. 5. 4 Bring Your Own Device BYOD Strategy...

and specialized software applications 2. It is the latest development in the computing models that performs computing functions on multilevel virtualization and abstraction by integrating many IT resources.

Virtualization can be important for cloud computing by enabling virtual machine migration to balance the load throughout the data center.

brand damage and productivity loss. 4. Virtualization issues Virtualization is very important in the cloud computing to achieve its goal of sharing resources.

Virtualization of enterprise servers introduces considerable security concerns. Associating multiple servers with one host removes the physical separation between servers,

As for Application Streaming solutions, they can be considered a kind of application virtualization. Indeed, they are basically an on-demand service distribution,

Finally, Mobile device Virtualization solutions are a kind of hardware virtualization, allowing, e g.,, the use of two or more operating systems on the same mobile device.

thus, not guaranteeing fast delivery of the service Mobile device virtualization The device can be used safely, even for personal purposes,

using virtualization to reduce application deployment costs by reducing testing efforts and decreasing the time that is needed to deploy apps. 3 Chapter 3 on mobile services provide further insights

which is desktop virtualization that separates the desktop environment and associated application software from the physical client device that is used to access it 5. 5. 3 Virtualization Strategy This strategy enables enterprises to quickly achieve business benefits gained from IT consumerization by moving the desktop and/or applications into a data center.

This strategy makes it easier to provide new desktops but it requires investment in the infrastructure that supports it.

protecting user information, using virtualization technologies that include desktop virtualization and application streaming, and finally, delivering the required applications to privately owned devices by using application gateways

enabling such strategy includes new technologies such as serverbased virtualization for application streaming and user state virtualization for a great cross-device experience 16.

Companies that provide desktop virtualization solutions include information technology giants. One example of these companies is Cisco,

which provides Desktop Virtualization with collaboration with Citrix Xendesktop solution and desktop virtualization with cooperation with VMWARE View solution.

or local) Virtual workspace (server or local) Access to hosted desktop Access to hosted desktop Public access apps Remote desktop Session roaming Session roaming Remote apps Apps virtualization

Apps virtualization VDI Roaming environment Roaming environment Data synchronization Data synchronization VDI VDI Adapted from 16 5. 7 Considerations Related to IT Consumerization 105 Therefore,

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