What is a recommended mitigation to prevent single points of failure in the SD-WAN management plane?

• A. Redundant vSmart/vBond appliances, proper keepalives, and automated failover
• B. Increase CPU on vManage
• C. Disable automatic updates
• D. Use one device only

Answer: (A)

Redundancy in the SD-WAN management plane is the key to high availability. By deploying multiple vSmart and vBond appliances, you create backup control-plane paths so that losing one controller doesn’t break management connectivity to the edge devices. Keepalives between components let the system detect a failure quickly, and automated failover ensures another instance takes over without manual intervention. This combination keeps the control plane reachable and the network manageable even when part of the management infrastructure fails.

Increase in vManage CPU helps performance, not availability. Disabling automatic updates can introduce stability or security risks, and using a single device directly creates the very single point of failure you’re trying to avoid.