The acronym SDN stands for Software-Defined Networking. This innovative networking architecture separates network control from the physical devices, allowing for more flexible and programmable network management. With SDN, network administrators can dynamically adjust network configurations to meet changing demands, improving efficiency and reducing operational costs. Additionally, SDN facilitates easier automation of network functions, better traffic management, and simpler scalability. This technology is pivotal in modernizing network infrastructures, particularly in large organizations aiming to optimize their IT resources.