Which technology does VXLAN use to provide segmentation for Layer 2 and Layer 3 traffic?

Question

Options

• Abridge domain
• BVLAN
• CVRF
• DVNI

• A
  8% (3)
• B
  3% (1)
• C
  3% (1)
• D
  87% (33)

Explanation

VXLAN (Virtual Extensible LAN) uses the VXLAN Network Identifier (VNI) as its core segmentation mechanism, providing a 24-bit identifier that supports over 16 million unique network segments for both Layer 2 and Layer 3 traffic - far exceeding traditional VLAN limitations.

Why the distractors are wrong:

• A (Bridge Domain): Bridge domains are used in technologies like Cisco ACI or MPLS networks for Layer 2 forwarding, but they are not VXLAN's native segmentation method.
• B (VLAN): VLANs are the predecessor technology that VXLAN was designed to extend and overcome; they only support 4,094 segments and are limited to Layer 2, whereas VXLAN encapsulates traffic over UDP to span Layer 3 boundaries.
• C (VRF): VRF (Virtual Routing and Forwarding) provides Layer 3 network segmentation and is often used alongside VXLAN (especially in EVPN deployments), but it is not VXLAN's own segmentation technology.

Memory Tip: Think of it this way - VXLAN = VNI. Both start with "V" and are paired together. Just as a VLAN uses a VLAN ID, VXLAN uses a VNI - it's the "ID" of the VXLAN world, but on a much larger scale (24-bit vs. 12-bit).

No community discussion yet for this question.