In this paper is placed on the introduction, design and assessment of a complete model and framework aiming specifically at the deployment of a Cloud oriented Content Delivery Network paradigm within a multi-provider Networked Cloud Environment. A hierarchical framework is proposed and evaluated towards an efficient and scalable solution of content distribution over a multi-provider networked cloud environment, where inter and intra cloud communication resources are simultaneously considered along with traditional cloud computing resources. To efficiently deal with the CCDN deployment problem in this emerging and challenging computing paradigm, the problem is decomposed to graph partitioning and replica placement problems while appropriate cost models are introduced/adapted. Novel approaches on the replica placement problem within the cloud are proposed while the limitations of the physical substrate are taken into consideration. The performance of the proposed hierarchical CCDN framework is assessed via modeling and simulation, while appropriate metrics are defined/adopted associated with and reflecting the interests of the different identified involved key players.
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