Enhancing Dynamic Cloud-Based Services Using Network Virtualization

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Executive Summary

It is envisaged that services and applications will migrate to a cloud-computing paradigm where thin-clients on user devices access, over the network, applications hosted in data centers by application service providers. Examples are cloud based gaming applications and cloud-supported virtual desktops. For good performance and efficiency, it is critical that these services are delivered from locations that are the best for the current (dynamically changing) set of users. To achieve this, the authors expect that services will be hosted on virtual machines in interconnected data centers and that these virtual machines will migrate dynamically to locations best suited for the current user population. A basic network infrastructure need then is the ability to migrate virtual machines across multiple networks without losing service continuity.

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