SDN NFV PERIYAR MANIAMMAI UNIVERSITY software defined networks and network function virtualization

SDN NFV PERIYAR MANIAMMAI UNIVERSITY

1. Software-Defined Networking (SDN) & Network Function Virtualization (NFV) for Next-Generation Networks Dr.K.Thangaraj Associate Professor/IT Sona College of Technology, Salem.

2. Agenda Introduction to SDN and NFV Why SDN & NFV? SDN Architecture NFV Architecture Key Technologies Industry Use Cases Benefits and Challenges Future of SDN & NFV in 5G Conclusion Q&A

3. Software-Defined Networking (SDN) and Network Function Virtualization (NFV) SDN Definition : Decouples the control and forwarding planes in a network. NFV Definition : Virtualizes network functions that used to run on dedicated hardware.

4. Why SDN & NFV ? Traditional networks are rigid and hardware-centric. SDN & NFV offer scalability, flexibility , and cost reduction . Critical for 5G, IoT , and cloud-native environments

5. SDN Architecture Control Plane : Centralized controller manages the network. Data Plane : Routers and switches forward packets based on the controller's instructions. OpenFlow Protocol : Allows communication between control and data planes.

6. Key SDN Components SDN Controller (e.g., ONOS, OpenDaylight ) Northbound APIs : Interact with applications. Southbound APIs : Interface with network devices.

7. NFV Architecture NFV Infrastructure (NFVI) : Virtualized hardware and software infrastructure. Virtual Network Functions (VNFs) : Virtualized network services like firewalls, load balancers. NFV Management and Orchestration (MANO) : Manages the lifecycle of VNFs.

8. Key NFV Components NFVI : Physical and virtual resources. VNFs : Virtualized network functions (examples: virtual routers, firewalls). MANO : Orchestration, deployment, and lifecycle management of VNFs.

9. SDN vs. NFV Feature SDN NFV Purpose Network management/control Network function virtualization Focus Separation of control and data plane Virtualizing network functions Key Benefit Centralized control, programmability Agility, flexibility, cost-efficiency

10. Key Technologies Enabling SDN & NFV Virtualization Technologies : VMs, containers, hypervisors. Cloud Computing : Integration with public and private cloud platforms. Automation & Orchestration : DevOps tools, CI/CD pipelines

11. Use Cases of SDN in the Industry Data Center Networks : Google B4. Cloud Networking : AWS, Azure SDN implementations. Service Provider Networks : Network slicing for 5G.

12. Use Cases of NFV in the Industry Virtual Firewalls : AT&T, Deutsche Telekom. Virtual Routers : Cisco VNF for network edge. Telecom Cloud Networks : Verizon’s VNF adoption for 5G.

13. Benefits of SDN Centralized network control. Faster deployment of services. Automation and orchestration. Cost reduction due to commoditized hardware.

14. Benefits of NFV Reduced CapEx and OpEx . Flexible scaling of network functions. Rapid service provisioning. Simplifies network maintenance .

15. Challenges with SDN Security risks : Single point of failure. Interoperability with legacy systems. Complex deployment and management.

16. Challenges with NFV Performance overhead of virtualized functions. Complexity in orchestration and lifecycle management. Interoperability between VNFs from different vendors.

17. SDN & NFV in 5G Networks Role in network slicing . Dynamic resource allocation in 5G networks. Enabling edge computing for IoT .

18. Future Trends in SDN & NFV AI/ML integration for network management. Edge computing and IoT . Growing importance in private 5G and enterprise networks

19. Conclusion SDN and NFV are revolutionizing network design. These technologies are foundational for next-gen networks (5G, IoT , cloud). Adoption will continue to grow as automation and scalability demands increase.

20. Q & A THANK YOU