Which identifier uniquely distinguishes a TLOC from a WAN Edge into the SD‑WAN transport network?
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Correct answer: system IP address.
Why this is the answer
The system IP address uniquely identifies a TLOC (Transport Locator) within the SD-WAN transport network. Each WAN Edge device has a unique system IP address, which is then used as part of the TLOC identifier (along with the TLOC color and encapsulation type). This ensures that each TLOC is distinct and routable across the overlay. The SD-WAN site ID identifies a logical site, not a specific TLOC. OMP (Overlay Management Protocol) is the routing protocol used in SD-WAN, not an identifier. The VPN ID identifies a specific VPN (Virtual Private Network) segment, which can contain multiple TLOCs.
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