Which logical network model of iMaster NCE-Fabric can be mapped to a Bridge Domain in VXLAN?

Question

Options

• ALogicLink
• BLogicSwitch
• CLogicVAS
• DLogicRouter

• A
  3% (1)
• B
  79% (31)
• C
  13% (5)
• D
  5% (2)

Explanation

LogicSwitch maps to a Bridge Domain (BD) in VXLAN because both represent a Layer 2 broadcast domain - LogicSwitch is the NCE-Fabric abstraction of an L2 switching segment, and a Bridge Domain is exactly that concept in VXLAN: a scoped L2 forwarding space identified by a VNI.

Why the distractors are wrong:

• LogicLink (A) represents logical connectivity between network nodes (think links/trunks), not a broadcast domain construct.
• LogicVAS (C) stands for Value-Added Services and models service function nodes like firewalls or load balancers - a service insertion concept, not a switching domain.
• LogicRouter (D) is a Layer 3 construct that maps to a VRF (Virtual Routing and Forwarding instance) in VXLAN, not a Bridge Domain.

Memory tip: Match the layer - a Bridge Domain is Layer 2, and a Switch (LogicSwitch) is the quintessential Layer 2 device. "Switch bridges, router routes" keeps L2 vs. L3 straight, so LogicSwitch → Bridge Domain and LogicRouter → VRF.

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