How does the SD-WAN management plane ensure resiliency in a large deployment?

• A. Redundant vManage instances, clustered or high-availability management, API access with role-based controls, and backups for configurations and templates
• B. Single vManage instance with no backups
• C. Only hardware redundancy
• D. Use cloud-only management

Answer: (A)

Resiliency in the SD-WAN management plane comes from distributing control across multiple, redundant management components and safeguarding the data and automation that drive the network. Using multiple vManage instances with clustering or high-availability ensures that if one management node fails, another can take over without interrupting policy deployment, monitoring, or orchestration. Backups of configurations and templates are essential so you can quickly restore devices and policy definitions after a failure or corruption, maintaining consistency across a large deployment. API access with role-based controls enables scalable, secure automation across many devices while enforcing least-privilege access, reducing the risk of widespread disruption from a compromised account.

Relying on a single management instance with no backups creates a single point of failure and long recovery times. Focusing only on hardware redundancy protects the data plane infrastructure but not the software-based management plane or its stored configurations. Cloud-only management can work in some scenarios but may introduce connectivity dependencies and other constraints in large, distributed deployments where local control, performance, and compliance matter.