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Software-Defined Networking (SDN) with OpenStack by Sreenivas Voruganti, Sriram Subramanian

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Chapter 2.  Introduction to Software-Defined Networking

As mentioned in the previous chapter, businesses and enterprises are moving towards newer architectures for building and deploying applications. With technologies such as virtualization and containerization, it is possible to rapidly deploy complex and highly scalable applications within an enterprise or on a public cloud or both.

Common IT applications require compute, storage, and networking resources. Traditionally, the server and storage infrastructure was installed and configured by system administrators and then separately, network administrators used to connect the servers and configure the network. This silo-based approach does not scale for today's on-demand and highly automated ...

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