What is the SDN and why is everyone talking about it?
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Cisco CCNA: What is Software Defined Networking (SDN)?
In this video, we'll explore what Software Defined Networking (SDN) is and its advantages. We'll also see how network operators can access this type of technology.
Software Defined Networking (SDN) is a network management approach that aims to make the configuration and control of computer networks more flexible and efficient. In an SDN network, the control logic is separated from the physical network infrastructure, allowing administrators to configure and control the network in a more centralized and programmatic way.
The key concept of SDN is "programmability." Network administrators can use programming languages to write "network rules" that define how traffic should be routed across the network. These rules are stored in a central "network controller," which uses this information to configure network equipment (such as switches and routers) to optimally route traffic.
SDN allows network administrators to configure and control their network more flexibly and quickly because they don't need to physically connect to network equipment to make changes. It can also make the network more responsive to changes in workloads and traffic demand because it's easier to update network rules in real time.
In summary, Software-Defined Networking is a network management approach that allows for greater flexibility and programmability, which can make configuring and controlling computer networks more efficient.