Software-Defined Networking and its Induction in Cloud Computing A Newer Approach to Networking and Modernizing the Cloud

Authors : Sushovan Banerjee; Aniket Pathak

Volume/Issue : Volume 6 - 2021, Issue 10 - October

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SDN principles may be traced back to the separation of the control and data planes, which was initially utilized in the public switched telephone network to facilitate provisioning and management long before it was adopted by data networks. The Ethane project at Stanford's computer sciences department gave birth to the usage of open-source software in split control/data plane systems. The creation of OpenFlow [1] was inspired by Ethane's simple switch design. Network controllers can use OpenFlow to determine the path network packets go through a network of switches. The OpenFlow standard is managed by the Open Networking Foundation (ONF), a user-led organization dedicated to the development and acceptance of software-defined networking (SDN). OpenFlow is specified by the ONF as the first standard communications interface defined between an SDN architecture's control and forwarding layers. Networks in businesses must be dependable. For many years, this has been assumed. Flexibility was not a consideration. Software-defined networking (SDN), on the other hand, is transforming the way IT and administrators think about network architecture. The original use case for an SDN was to visualise the network by separating the system's control plane from the data plane where traffic flows. The data center's network traffic is handled by a smart controller running specific software, as well as a series of routers and switches that forward packets of traffic. Network virtualization has several benefits: networks may be dynamically scaled up and down, fine-tuned for specific application use cases, and security policies can be implemented on each individual server. Software-defined networks (SDNs) eliminate network hardware limits, allowing you to create more usable and responsive network infrastructures. While the benefits of SDNs for on-premises systems are widely known, installing them in the cloud can provide a significant advantage. A wise IT manager can use a hybrid SDN and cloud architecture strategy to gain the cost-effective agility needed to respond to the organization's infrastructure needs while also being able to proactively address important security risks. The subsequent sections cover the majority of the topics needed to comprehend this material. Readers should feel free to look up further information in the reference section

Keywords : SDN, OpenFlow [1], Control and Data Plane [2], ONF [4], SDN in Cloud, hybrid SDN [19]


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