Here's a brief description of how the main features of SD-WAN work:‍

‍Multi-link band aggregation:

Band aggregation in an SD-WAN network is performed using per-flow load balancing, which allows bandwidth to be dynamically shared between different circuits. This ensures that different client applications can always use the highest possible bandwidth.

Automatic redundancy:

Automatic redundancy, also related to failover mechanisms, continuously tests connections, identifying and redirecting traffic between WANs in case of failures. This increases availability for user applications on the local network.

Measuring the quality of each link:

The quality of each link is measured by sending probe signals to a specific server or pool of servers on the Internet on each of the WANs. The quality metrics resulting from this survey are analyzed and compared to support routing/balancing decisions.

Instability protection:

Instability protection works by blocking the WAN considered unstable, preventing traffic from being directed to this WAN for a certain time, until it returns to stability. This mechanism ensures greater availability for LAN traffic, avoiding fluctuation.

Encryption:

Encryption is used to protect network traffic flowing through SD-WAN, ensuring its end-to-end integrity and confidentiality.

Overlapping private network:

SD-WAN is capable of creating an overlapping private network, directly connecting multiple devices through simple and low-cost broadband circuits. This solution is perfect for customers who want to interconnect office or store networks in different places or countries.

Real-time performance dashboard:

Leveraging its software and virtualization pillars, SD-WAN is able to provide complete and real-time dashboards, allowing you to monitor the overall performance of the network, according to the rules of your business.