What is a TLOC in a Cisco SD-WAN deployment?

Question

Options

• Avalue that identifies a specific tunnel within the Cisco SD-WAN overlay
• Bidentifier that represents a specific service offered by nodes within the Cisco SD-WAN overlay
• Cattribute that acts as a next hop for network prefixes
• Dcomponent set by the administrator to differentiate similar nodes that offer a common service

• A
  4% (2)
• B
  4% (2)
• C
  91% (52)
• D
  2% (1)

Explanation

TLOC in Cisco SD-WAN

A Transport Location (TLOC) acts as the next-hop attribute for network prefixes within the SD-WAN overlay, functioning similarly to a BGP next-hop - it identifies where traffic should be forwarded by pointing to the physical transport endpoint (defined by a combination of system IP, color, and encapsulation). Option A is incorrect because a TLOC is not simply a tunnel identifier; it is a routing attribute that directs traffic toward a transport endpoint. Option B describes a VPN or service identifier, not a TLOC, while Option D describes a color attribute, which is a component within a TLOC but not the TLOC itself.

Memory Tip: Think of TLOC as the SD-WAN equivalent of a BGP next-hop - just as BGP uses a next-hop IP to tell routers where to send traffic, a TLOC tells the SD-WAN overlay which transport endpoint to use as the forwarding destination for a prefix. Remember the three components of a TLOC: System IP + Color + Encapsulation.

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