What is the function of a VTEP in VXLAN?

Question

Options

• Aprovide the routing underlay and overlay for VXLAN headers
• Bdynamically discover the location of end hosts in a VXLAN fabric
• Cencapsulate and de-encapsulate traffic into and out of the VXLAN fabric
• Dstatically point to end host locations of the VXLAN fabric

• A
  2% (1)
• B
  2% (1)
• C
  94% (59)
• D
  3% (2)

Explanation

VTEP in VXLAN

A VTEP (VXLAN Tunnel Endpoint) acts as the gateway between the traditional Layer 2/3 network and the VXLAN overlay fabric - its primary job is to encapsulate outgoing frames into VXLAN/UDP packets and de-encapsulate incoming VXLAN packets back into standard Ethernet frames, making C correct. Option A is wrong because VTEPs don't provide the routing underlay (that's the physical IP network's job) or define the overlay headers themselves - they simply use them. Option B describes a function of the control plane (such as BGP EVPN or multicast), not the VTEP's core forwarding role, and Option D is incorrect because static host location pointing is a control-plane configuration method, not what defines a VTEP's function.

Memory Tip: Think of a VTEP like a border customs officer - everything leaving the country (VXLAN fabric) gets wrapped/stamped (encapsulated), and everything entering gets unwrapped/inspected (de-encapsulated). The word "endpoint" in VTEP is your clue - it's the termination point where tunnels begin and end, which means wrapping and unwrapping traffic.

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