Which device in an SD-Access wireless fabric maintains endpoint-ID to edge-node bindings?

The fabric control plane node, typically a Cisco DNA Center appliance or a dedicated server, maintains the mapping of endpoint IDs (MAC addresses, IP addresses) to their current location within the SD-Access fabric, specifically to the fabric edge nodes where they are connected. This information is crucial for efficient forwarding of traffic within the fabric. The fabric wireless controller manages the wireless access points and client associations but doesn't maintain the global endpoint-to-edge-node bindings for the entire fabric. The fabric border node connects the SD-Access fabric to external networks, and the fabric edge node is where endpoints connect, but neither maintains the centralized mapping database.