Enhancing dynamic cloud-based services using network virtualization

Computer Communication Review - Tập 40 Số 1 - Trang 67-74 - 2010
Fang Hao1, T. V. Lakshman1, Sarit Mukherjee1, Haoyu Song1
1Alcatel-Lucent, Holmdel, NJ, USA#TAB#

Tóm tắt

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, we 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. In this paper, we develop mechanisms to accomplish this using a network-virtualization architecture that relies on a set of distributed forwarding elements with centralized control (borrowing on several recent proposals in a similar vein). We describe a preliminary prototype system, built using Openflow components, that demonstrates the feasibility of this architecture in enabling seamless migration of virtual machines and in enhancing delivery of cloud-based services.

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Computer Communication Review

Tập 40 Số 1

67-74

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