What is SD-WAN? Why use SDWAN technology?

SD-WAN is known as a device that helps extend computer networks over large distances. So what exactly is SD-WAN? Why use SD-WAN technology? Let’s find out with Tnhelearning.edu.vn through the article below!

What is SD-WAN?

SD-WAN (Software-Defined Networking In A Wide Area Network) simplifies WAN operation and management by using centralized control to route traffic over the WAN securely.

Traditional WANs on conventional routers are not designed for the cloud . It needs to repair traffic, cloud traffic from branches to data centers or headquarters where advanced security audit services are applied.

How does SD-WAN work?

SD-WAN connects remote branches to data centers and provides applications and services to perform specialized tasks. It helps enterprises to limit facing challenges such as: network congestion, packet loss or loss of service .

The need for high resolution such as calls VoIP , video conferencing , online sharing and VPN increases bandwidth requirements. Extending WAN capabilities can be expensive and difficult, in addition to the problems associated with network management and troubleshooting.

Why use SD-WAN?

Companies are adopting cloud subscriptions and software as a service. Users used to connect to corporate data centers to access enterprise apps, but now they’re accessing the same apps in the cloud.

Currently, traditional WANs are no longer relevant. Mainly due to the reflow of all traffic from the branch office to the hub, including traffic to the cloud, which causes delays and slows down application performance.

SD-WAN provides low-cost WAN simplification , bandwidth efficiency, and seamless connectivity to the cloud without compromising privacy security. It delivers excellent application performance, especially for mission-critical applications…

Outstanding Features of SD-WAN

Resilience

SD-WAN has the flexibility to reduce network downtime . This technology needs to detect power outages in real time and automatically switch to other active connections.

Security

Unlike MPLS, which is a source-to-destination packet delivery technique for high-performance telecommunications networks, SD-WAN has a layer security engine for authentication, monitoring, and encryption. SD-WAN technology is usually secured with IPsec (the type of security found in WANs).

Administration and Troubleshooting

Ease of management is an important requirement for SD-WAN. The command line interface (CLI) recommends the use of a graphical interface for management and configuration methods such as SD-WAN technology.

Other useful management features include automatic route selection, the ability to centrally configure each terminal by submitting configuration changes, and a network-specific approach that makes it easier for users .

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