Software-Defined Networking is defined by “ the decoupling of control and packet-forwarding planes in the network ”. TRADITIONAL NETWORK The static architecture of traditional networks is Decentralized Complex Hardware-based LIMITATIONS OF TRADITIONAL NETWORK Only dedicated devices can be used Devices built for this sole purpose are only used Flexibility is a challenge Adaptability of the network is limited Inability to scale It is difficult to add or remove devices in the network Vendor lock-in The devices manufacture by a single manufacturer should be used throughout the network SOFTWARE DEFINED NETWORK The networks are directly connected to applications through application programming interfaces (APIs) It improves application performance and security It helps in creating a flexible, dynamic network architecture that can be changed as needed SDN ARCHITECTURE CONTROL PLANE The control plane is fre...