Which OMP route type advertises transport locators?

• A. Service route
• B. VPN route
• C. Overlay route
• D. TLOC route

Answer: (D)

OMP uses different route types for different kinds of information; the one that advertises transport locators is the TLOC route. TLOCs are the actual underlay transport endpoints—the IP addresses and related attributes (like color indicating primary or backup transport and the encapsulation) that identify how to reach a site over the underlay. Advertising these TLOCs lets other devices learn which transports are available and how to reach them, enabling the SD-WAN to build tunnels and choose optimal paths. In contrast, overlay routes carry reachability for the SD-WAN overlay networks, VPN routes carry VPN-specific prefixes, and service routes handle service-related policies, not the transport endpoints.