Match the following VXLAN terms with their descriptions: VXLAN Term VXLAN Tunnel Endpoint (VTEP) MAC-in-UDP Asymmetric IRB Symmetric IRB Description

Question

Options

• AVTEP - A; MAC-in-UDP - B; Asymmetric IRB - C; Symmetric IRB - D
• BVTEP - A; MAC-in-UDP - B; Asymmetric IRB - D; Symmetric IRB - C
• CVTEP - A; MAC-in-UDP - C; Asymmetric IRB - B; Symmetric IRB - D
• DVTEP - A; MAC-in-UDP - D; Asymmetric IRB - C; Symmetric IRB - B

• A
  93% (39)
• B
  5% (2)
• D
  2% (1)

Explanation

Option A is correct because it maps each VXLAN term to its standard definition: VTEP (A) is the device that encapsulates and decapsulates VXLAN frames at tunnel endpoints; MAC-in-UDP (B) describes VXLAN's encapsulation method, wrapping Layer 2 frames inside UDP packets; Asymmetric IRB (C) is the model where routing happens only on the ingress VTEP while the egress VTEP only bridges; and Symmetric IRB (D) is the model where both ingress and egress VTEPs perform routing, creating a symmetric traffic path.

Options B, C, and D are wrong because they swap the descriptions for the IRB modes and/or the encapsulation method - the most common trap is confusing Asymmetric and Symmetric IRB (as in option B), or misplacing MAC-in-UDP (as in options C and D).

Memory tip: Think of "Asymmetric" as unbalanced - only one side (ingress) does the heavy lifting (routing + bridging), while the egress just bridges. "Symmetric" is balanced - both sides route. For MAC-in-UDP, remember VXLAN's nickname: it literally wraps MAC frames in UDP, so the name is self-describing.

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