NaaS-enabled service composition in SDN environment
This chapter focuses on conceiving a service composition framework supporting NaaS with the aid of software-defined networking. Specifically, the framework and software necessary for implementing the NaaS-enabled service composition is presented. It provides a comprehensive solution for jointly utilizing the resource of the networking and computing domain, which relies on the techniques of coordinate management, aggregation, controlling, and optimization. Then, several specific mechanisms are induced in the framework for the sake of providing multipath, multicast, and multi-domain routing service as a service component. A prototype system is constructed by integrating OpenFlow network of moderate scale and OpenStack. Experiments based on this prototype are conducted to demonstrate the applicability of the conceived framework.
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