The Primary Benefits of WAN & SD-WAN: How it Works and its Advantages

WAN (Wide Area Network) SD-WAN (Software-Defined Wide Area Network) has become a popular topic in the world of networking, as more and more organizations look for ways to improve their WAN infrastructure. But what exactly is WAN SD-WAN and how does it work? In this blog post, we'll take a closer look at WAN SD-WAN and explain how it can benefit your organization. Understanding how systems work is crucial in making informed decisions.

Defining WAN SD-WAN

A WAN connects different LANs (Local Area Networks) over a wide geographical area, such as a city, country or even across countries. WANs can be connected by leased lines, satellite, or the public internet. SD-WAN is an approach to WAN architecture that utilizes software-defined principles to improve the flexibility, scalability, and ease of management of WANs. With SD-WAN, network administrators can centrally manage and automate WAN routing and traffic management, increasing network efficiency and reducing costs.

How SD-WAN Works

SD-WAN works by abstracting the underlying hardware and infrastructure of the WAN, making it possible to manage the WAN through software. This enables network administrators to centrally configure, monitor and control the WAN, regardless of the location or the underlying infrastructure. SD-WAN technology makes use of a software-defined controller that sits in the cloud or on-premises to manage the WAN and establish a secure connection to the internet, MPLS or other WAN links. The SD-WAN controller monitors the available links in real-time, and automatically routes traffic to the best link based on performance, cost and security.

Advantages of SD-WAN

One of the main advantages of SD-WAN is that it can improve the performance and reliability of WAN connections. By abstracting the underlying infrastructure, SD-WAN technology can automatically route traffic over the best available link, improving performance and reducing downtime. Additionally, SD-WAN can also improve the security of WAN connections, by encrypting traffic and adding an additional layer of security. This, along with the centralized management and the ability to quickly deploy new branches or offices, can significantly reduce the operational costs of managing a WAN. Like other technologies, understanding the advantages is key to successful implementation.

How to implement SD-WAN

Implementing SD-WAN can be done in a few different ways. One of the most popular is u