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The way that users use the Internet changed from host-to-host communications to service-oriented paradigms. Develop, deploy, advertise and use services in the networks become very challenging due to the historical design of the networks and the nature of coupling service with transport layer network. This calls for novel architectural designs to enable networks to be able to handle the interactions between service providers and consumers effectively and smoothly; This paper proposes Service-Enabled Network Architecture, SENA, a new architecture which separates the service layer with network transport layer. SENA uses Service Directory and Service Gateway to bridge between these two layers. The paper defines the functional components and their interactions; identify and design the basic building blocks of SENA.
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