A SDE—The Future of Cloud

Abstract

The probe of Internet has made the digital civilization possible, where everything is interconnected and can be accessed from everywhere. However, the complexity of traditional IP networks is high which makes its management difficult in spite of their widespread acceptance. It is both difficult for network configuration as per the present policies, and reconfiguring it whenever required for faults, load and changes made dynamically. The present technology uses the data and control planes together in routers. Software-Defined Environment (SDE) is an emerging prototype that uses vertical integration, i.e., separating the network’s intelligence from the physical devices like hardware switches or routers, endorsing logical centralization of controlling the network. It introduces the ability to adapt, program the network which can optimize the entire computing infrastructure namely, compute—storage—network resources, so that it can adapt to the type of application or protocol required. The separation of control and data planes in its implementation of switching hardware, and the forwarding of traffic between different networks with different defined policies, is the key to the desired flexibility. Hence, SDN makes it easier to create by simplifying the network control problem into manageable pieces which is a present business demand with more agility and flexibility through virtualization. Understanding SDN paradigms are the key for enterprises trying to properly position cloud services. SDN is appropriately accepted as more efficient “Cloud Networking,” i.e., the revolutionary growth in network usage and its services support the cloud computing on a large scale. This paper discusses various tasks and technology models of SDNs which are typically needed for proper utilization of cloud services and appreciate its advantages.