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      • Software-Defined Networking and Virtualization: The Service Provider Perspective

        Attila Takacs,Elisa Bellagamba,Joe Wilke,DK Lee 에스케이텔레콤 (주) 2013 Telecommunications Review Vol.23 No.5

        An architecture based on software-defined networking (SDN) and virtualization techniques gives operators greater freedom to balance operational and business parameters, such as network resilience, service performance and QoE against the costs. In this work we review our Carrier Cloud as a future mobile network infrastructure that exploits both SDN and virtualization technologies in order to increase the operator agility, reduce the cost, and even disrupt the vendor landscape. We begin with Ericsson’s approach to SDN goes beyond the data center addressing issues in the service provider environment, and move on to network functions virtualization (NFV) as a promising alternative to the legacy network infrastructure. We also reveal there are remaining hurdles of those key technologies to overcome in order to be fully adopted in the Telco world.

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