Question

A network architect is documenting the difference between LISP and VXLAN in an SD-Access fabric for a design review. A junior engineer asks which statement correctly describes the fundamental roles these two technologies play in the fabric architecture. Which statement is accurate?

Accepted Answer

LISP provides the control-plane function for endpoint (EID)-to-locator mapping, while VXLAN provides the data-plane encapsulation that carries traffic across the underlay.

Answer

VXLAN provides the control-plane mapping of endpoints to fabric edge nodes, while LISP encapsulates the user traffic across the underlay.

Answer

Both LISP and VXLAN are data-plane encapsulation protocols, and the fabric selects one per VLAN based on MTU requirements.

Answer

LISP encrypts the fabric traffic while VXLAN authenticates endpoints before they are added to the mapping database.