Which SD-WAN transport color is commonly assigned to private MPLS circuits?

• A. biz-internet
• B. public-internet
• C. mpls
• D. metro-ethernet

Answer: (C)

In SD-WAN, transport colors tag the type of underlying network path so policies can treat them appropriately. Private MPLS circuits are a classic SLA-backed, predictable path, and the color used to represent that specific transport is the MPLS color. This labeling signals the SD-WAN fabric to prefer or route traffic over the dedicated MPLS link and apply relevant QoS or bandwidth rules. The other colors map to different access types (business internet, public internet, or metro Ethernet), which follow different characteristics and policies. So the MPLS color best represents a private MPLS circuit.