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Prior work on centralized Routing Control Platform (RCP) has shown many benefits in flexible routing, enhanced security, and ISP connectivity management tasks. In this paper, the authors discuss RCPs in the context of OpenFlow/SDN, describing potential use cases and identifying deployment challenges and advantages. They propose a controller-centric hybrid networking model and present the design of the Route-Flow Control Platform (RFCP) along the prototype implementation of an AS-wide abstract BGP routing service. Providing a clean separation of functions is paramount to any system or network architecture. In networking, they have seen multiple flavors of successful split architectures such as SS7, IMS/NGN, GMPLS, PCE, and so on.
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