Software Defined Networking (SDN)

Simple Definition for Beginners:

Software Defined Networking (SDN) is a technology that allows for centralized management and control of network infrastructure using software-based controllers.

Common Use Example:

In SDN, network administrators can use a central controller to dynamically configure and manage network resources, such as switches and routers, based on application needs.

Technical Definition for Professionals:

Software Defined Networking (SDN) is an architecture that separates the control plane from the data plane in networking devices. Key components of SDN include:

• Controller: A central software-based controller that manages and configures network devices.
• Separation of Control and Data: The control plane, responsible for network management decisions, is decoupled from the data plane, which handles data forwarding.
• Programmability: SDN enables programmable network configurations and policies, allowing for automation and agility.
• Open APIs: SDN provides open APIs that allow third-party applications and services to interact with the network infrastructure.
• Virtualization: SDN can virtualize network resources, making it easier to scale and manage large networks.