Which concept is essential for the proper performance of SD-WAN devices?

High Availability configuration is essential for the proper performance of SD-WAN devices because it ensures that the network remains operational even in the event of hardware or software failures. SD-WAN implementations typically rely on multiple internet connections and pathways to direct traffic efficiently and maintain service continuity. High Availability allows for automatic failover and redundancy, minimizing downtime and ensuring that the network can adapt to changing conditions, such as a link going down or experiencing suboptimal performance.

This concept contributes to a robust and resilient networking environment where performance is not only maintained during regular operation but also stabilized during disruptions. For businesses relying on consistent internet connectivity for critical applications and services, this capability is crucial in achieving optimal performance and user satisfaction.

In contrast, while Traffic Filtering, Custom Protocol Settings, and Static IP Allocation are important aspects of network management, they are not specifically tied to the core operational requirements and resilience that High Availability configuration provides within the SD-WAN context.