Technology Science&&Technology InstituteofofScience NationalInstitute National B.Tech Technical Seminar Presentation-2019 A Taxonomy of Software-Defined Networking (SDN)-Enabled Cloud Computing By PRABHAT KUMAR LENKA <201610688> Under the guidance of Krishnendu Rarhi Prabhat Kumar Lenka IT201610688 1 Technology Science&&Technology InstituteofofScience NationalInstitute National B.Tech Technical Seminar Presentation-2019 TOPICS TO BE DISCUSSED Introduction Why we need new approach Why not traditional networks SDN architectures SDN controller Challenges and future Expectation Conclusion Prabhat Kumar Lenka IT201610688 2 Technology Science&&Technology InstituteofofScience NationalInstitute National B.Tech Technical Seminar Presentation-2019 INTROUCTION •Software Defined Networking (SDN) is an evolutionary approach to network design and functionality based on the ability to programmatically modify the behavior of network devices. •SDN uses user-customizable and configurable software that’s independent of hardware to expand data flow control. •A particularly important task in SDN architectures is that of controller placement i.e. the positioning of a limited number of resources within a network to meet various requirements •It will make networks more flexible, dynamic, and costefficient, while greatly simplifying operational complexity. Prabhat Kumar Lenka IT201610688 3 Technology Science&&Technology InstituteofofScience NationalInstitute National B.Tech Technical Seminar Presentation-2019 The Need for a New Network Architecture • Changing Traffic Pattern • The Rise of Cloud Services • Consumerization of IT • “Big data” means more bandwidth Prabhat Kumar Lenka IT201610688 4 Technology Science&&Technology InstituteofofScience NationalInstitute National B.Tech Technical Seminar Presentation-2019 Traditional Computer Networks • Data flow is controlled by switches and routers and contains the following basic elements: •Data Forwarding plane: Packet streaming Prabhat Kumar Lenka IT201610688 • Control plane: Routing algorithms 5 Technology Science&&Technology InstituteofofScience NationalInstitute National B.Tech Technical Seminar Presentation-2019 Traditional Networks worked well… • Hardware based networks have historically shown that they were stable and reliable. • Operational capacities were quickly regained after a power loss, without significant external interventions. • Operated consistently in varying environments. Prabhat Kumar Lenka IT201610688 6 Technology Science&&Technology InstituteofofScience NationalInstitute National B.Tech Technical Seminar Presentation-2019 Introducing Software-Defined Networking • Software Defined Networking (SDN) is an emerging network architecture where network control plane is decoupled from forwarding plane and is directly programmable. • SDN-enabled control plane allows the underlying infrastructure to be abstracted. • Network appears to the applications as a single, logical switch entity • The reason SDN becomes an alternative is that it allows administrators to configure resources and bandwidth instantaneously and bring flexibility, efficiency, and resiliency to the data center. Prabhat Kumar Lenka IT201610688 7 Technology Science&&Technology InstituteofofScience NationalInstitute National B.Tech Technical Seminar Presentation-2019 Introducing Software-Defined Networking • • Software Defined Networking an emerging SDN-enabled control plane (SDN) allows is the underlying network architecture where network control plane is infrastructure to be abstracted. decoupled from forwarding plane and is directly programmable. Prabhat Kumar Lenka IT201610688 8 Technology Science&&Technology InstituteofofScience NationalInstitute National B.Tech Technical Seminar Presentation-2019 SDN Architecture Prabhat Kumar Lenka IT201610688 9 Technology Science&&Technology InstituteofofScience NationalInstitute National B.Tech Technical Seminar Presentation-2019 SDN Controller • The controller is the core of an SDN network. • By running the control plane as software, the controller facilitates automated network management and makes it easier to integrate and administer applications. • SDN controllers uses protocols such as OpenFlow to configure network devices • It manages flow control to enable intelligent networking. Prabhat Kumar Lenka IT201610688 10 Technology Science&&Technology InstituteofofScience NationalInstitute National B.Tech Technical Seminar Presentation-2019 CONCLUSION • SDN promises to transform today’s static networks into flexible ,scalable, programmable platforms with the intelligence to allocate resources dynamically. • With its many advantages and astonishing industry momentum, SDN is on the way to become- the new approach for networking. • Looking at all of the choices that companies have right now to source “programmable” network technologies, you could say that the future of Software-defined-networking is already here. Prabhat Kumar Lenka IT201610688 11 Technology Science&&Technology InstituteofofScience NationalInstitute National B.Tech Technical Seminar Presentation-2019 Prabhat Kumar Lenka IT201610688 12
