Which component of the SD-Access fabric is responsible for communicating with networks that are external to the fabric?

Border nodes in an SD-Access fabric act as the gateway between the fabric overlay network and external networks, performing routing lookups and enforcing policies for traffic destined outside the fabric.

Control plane nodes (based on LISP) manage the mapping of endpoint identifiers (EIDs) to routing locators (RLOCs) within the fabric, but they do not directly communicate with external networks for traffic forwarding.

'Intermediate nodes' is not a standard architectural component within the Cisco SD-Access fabric design.

Edge nodes connect end devices to the fabric, handle host registration, and provide ingress policy enforcement, but they are not primarily responsible for external network communication.