In a Cisco Software-Defined Access (SDA) network, you have a GRE over IPsec tunnel between two endpoints. Which term refers to the functions that deliver endpoints traffic across this network?

Question

LISP
Overlay
Underlay
Fabric

Answer 1

In a Cisco Software-Defined Access (SDA) network, the term that refers to the functions that deliver endpoints traffic across the network is Overlay.

The overlay network is responsible for encapsulating the traffic and providing a virtualized layer that allows for efficient routing of traffic between endpoints, often leveraging protocols like GRE over IPsec for secure communication. The underlay refers to the physical infrastructure that supports the overlay.