What is Software Defined Networking (SDN)? Future Network Architecture

Many companies are moving towards adopting the software defined networking capabilities for optimal or peak performance. It provides multiple benefits after implementation, such as ease of network control, agility, flexibility, greater control over network security, etc. Learn about what it is, how it works, and its major types from the sections below.  

What is Software Defined Networking (SDN)? 

The software defined networking, or SDN, is a smart way to efficiently control traffic and scale as needed. Because of that, top software development companies are using this technology. Technically, it is a mode of software control when it comes to networking architecture, powered by APIs, or application programming interfaces. Companies are using it mainly because it makes cloud-based network management and deployment possible. 

Key insights: SDN leverages a unified and centralized platform to communicate with Information Technology Infrastructure and direct network traffic. 

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How Does Software Defined Networking Work? 

In software defined networking, the software needs to be decoupled from the hardware. SDN moves the control plane that sends traffic to software and doesn’t include the data plane that actually sends the traffic in the hardware. And that is what allows network admins using software-defined networking to program and control the entire network. And note that it doesn’t operate on a device-by-device basis. 

The entire operation is done involving all the key components, such as the application layer, control layer, infrastructural layer. Other remotely located parts are applications, SDN controllers, networking devices, and open-source technologies.  

Big companies like Fintech Software Development often deploy such capabilities to optimize their workflows.  

What are the Major Types of Software Defined Networking? 

The major types of software defined networking, or SDN, are as provided below. It includes Open SDN, API SDN, Overlay Model SDN, and Hybrid Model SDN.  

• Open SDN: When it comes to routing data packets, open protocols are mainly deployed. This technology allows network operators, vendors, and developers to work together.   
• API SDN: With this, also known as southbound APIs, organizations control data flow among devices. API SDN allows a variety of essential platforms to integrate and work as a whole, such as orchestration platforms, cloud management tools, etc. 
• Overlay Model SDN: It is used where virtual networks run above existing hardware. This creates tunnels with channels to all types of data centers. 
• Hybrid Model SDN: This is called a hybrid model because both SDN and traditional networking are used here.  

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Conclusion 

Even though software defined networking is a key capability in modern times, it is not completely risk-free. Risks are mostly associated with when the technology isn’t implemented correctly. So, for utmost safety, make sure that you implement controller redundancy on the network with automatic failover. 

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