Software defined networking (SDN) is a new concept which aims to optimize the working of a network and improve its efficiency drastically. SDN has a central control part which aims at monitoring the flow of information and the associated use of bandwidth as well as other framework. Software defining networking is useful in a network in that is perform as a brain of that particular network which allows the person managing the network to understand various operations in the best way possible. It is imperative to note that SDN can regulate the traffic efficiently and dictate to the underlying systems like the routers, switches and other network gear on how the network traffic should be managed. It is essential to understand that the use of software defining networking allows the engineers working on it to come up with solutions to altering a business needs and develop the flow of traffic without searching or manipulating the switches.
With the software defining networking is the brain of the network, it serves as a connection between two stages. When the data flow to the level above the controller known as application layer, it is said to be northbound. Infrastructure is the level which is below the application level and all the data which move to this level is meant to be southbound. An application programming software (API) refers to the set protocols and tools which are applied to develop software applications. API works in demonstrating software in terms of its varying components like inputs, outputs and workings. The northbound APIs dictate to the applications on top while the southbound APIs communicate with the routers and switches below in SDN.
When you employ software defining networking, you will realize many profits like minimizing on the capital as well as reduction of the operational costs. Note that the use of automation, functional separation and optimization, it is easy to obtain significant cost savings. Also, higher reliability in networking functioning is obtained and programmable interfaces and switches implies that scaling up or down of network operations is easy.
It is right to understand that the use of software defined networking has made is easy to alter the traffic loads fast, in a dynamic wat and using minimal amount of cash as possible. Therefore, SDN aims at acting as a bridge between the network intelligence part and the physical hardware part without having to disrupt any function or efficiency. Note that manual management, time is taken, and expense that comes with reconfiguration is reduced significantly. Depending much on vendors, complexity and failing to scale up or down quickly are loopholes in networking which have been brought to an end by the use of software defining networking.