Software-Defined Wide Area Network (SD-WAN) is a new technology that has been designed by some of the network giants. Examples of some of the existing SD-WAN include Meraki owned by Cisco, Silver Peak by HP others includes Juniper, velocloud, etc. Most Telecommunication companies, financial institutions, schools, and so on has over the years provided their services to numerous customers across the world using the traditional wide area network (WAN)-MPLS (Multi-protocol Label Switching). With this traditional technology, multiple branches of these organizations solemnly depend on the Datacenter of the Headquarters as its source.
Before the invention of SD-WAN, the traditional architecture of the MPLS seemed very good because all applications are hosted at the Data Center and traffic is routed based on TCP/IP addresses, Access control List Table, Routing Protocols (EIGRP, OSPF, etc.). All these controls and routing protocols are distributed to all the routers at every organization’s branch locations. This has a lot of disadvantages as it causes a decrease in Application performance, latency issues, a Decrease in Network Security, increases WAN cost and makes it difficult to bring up a branch office in less time possible (reduced Agility).
Why You Should Deploy SD-WAN
These days, most applications are hosted in the cloud as SaaS APPs. Accessing these SaaS Applications through the traditional WAN where diverse kinds of routing protocols are required to be configured possess a lot of challenges in ensuring the fast delivery of service. Customers just can’t wait any longer. They require speedy and excellent service delivery and Quality of Service QoS. This is what SD-WAN has brought to today’s Business.
Following the migration of IT infrastructure to SD-WAN, there are cost benefits to consider, but there are many other potential benefits.
- Better Security: Network traffic is encrypted and the network is segmented to improve security when sending sensitive files.
- Improved Performance: Applications (like voice or video) can be prioritized ensuring a better experience for end users.
- More Flexibility: Customize the bandwidth and roll out network wide updates from a single point of control.
- Scalable: As you grow, you can scale its deployment when your traffic increases
What Deploying SD-WAN will save your Organization
- Some of the savings to your WAN environment may be harder to quantify but they impact your organization nonetheless. Zero-touch provisioning, for instance, means your network staff won’t need to travel out to a new branch location to bring them online. They’ll simply plug in the SD WAN device that comes with self-implementation and they’ll be on your network.
- SD-WAN also allows you to prevent the kinds of costly breaches that can seriously hobble a business organization. With network segmentation, it’s easy to identify and isolate a threat, protecting the rest of your network from penetration.
- SD-WAN also introduces new levels of agility, making it easy to add a new application to your network. Line-of-business managers are no longer forced to wait for their project to claim time and resources from IT. Business decisions that include a tech action plan can be implemented immediately, delivering quick returns and other benefits.
Wondering whether SD-WAN is right for your organization? This article brings to you an overview of What SD-WAN is and its advantages to today’s business. Following the deployment of 5G technology across the globe, there are key components that really can’t happen without SD-WAN. They include low latency applications, self-healing networks, and SD-WAN provides the ability to manage these mobile applications at the very edge of the network using a technology called Network Slicing, used to create multiple dedicated end-to-end virtual networks.