A Review on Software Defined Networks: Energy Efficient Load Balancing Strategies

Elements of the Internet's traditional architecture are currently immovable, a phenomenon known as "ossification of the Internet," which has created significant challenges for the implementation of IPv6 and made employing IP multicast services challenging. The Internet still needs to be expanded for a variety of reasons, including enhancing network's higher availability, offering users transport layer connectivity, and network resources quality of service can be managed dynamically for naive applications like data centres, cloud computing, and network virtualization. The Future Internet's next-generation design has proposed the idea of Software Defined Networking (SDN) to meet these needs. This decoupling enables the deployment of control plane software components, such as the Open Flow controller, on computer platforms that are significantly more powerful than conventional network hardware, such as switches and routers, while safeguarding the information. To address the many obstacles to creating the advanced Internet and to tackle the issue of the Current Internet, an understanding of SDN Paradigm is necessary. This article covers current technologies and the vast range of cutting-edge initiatives on SDN to fulfil these criteria. This is followed by an in-depth examination of the key difficulties in this field. SDN is an architectural strategy for networking that attempts to make networks more responsive, adaptable, and programmable. Instead of depending on manual configuration of individual networking devices, this separation enables network administrators and operators to manage and configure network resources in a centralized manner using software. The control and data planes of network devices like routers and switches are integrated in a typical networking architecture. While the data plane is in charge of handling the actual forwarding of packets, the control plane is in charge of determining routing decisions and overseeing the network's overall behaviour.