How is the scalability of the Manage increased in Cisco SD-WAN Fabric?

Increasing the bandwidth of the WAN link connected to vManage primarily affects communication speed, but it does not inherently increase the processing capacity or scalability of the vManage application itself.

While licensing dictates the number of devices vManage can manage, it does not increase the underlying compute or processing scalability of a single vManage instance.

Deploying more than one vManage controller on different physical servers is a necessary step towards clustering, but it is the act of clustering them together that provides shared management, distributed workload, and thus, true scalability.

To increase the scalability and resilience of the vManage platform, multiple vManage controllers are deployed in a cluster. This distributed architecture allows for shared processing, provides redundancy for high availability, and enables the system to manage a larger number of SD-WAN devices and handle increased operational demands efficiently.