Which three AVS switching modes are supported on Cisco ACI? (Choose three)

Question

Options

• AVXLAN, no local switching
• BVPC-HM
• CVXLAN, local switch
• DVLAN, no local switching
• EMAC pinning
• FVLAN, local switching

• A
  79% (15)
• B
  5% (1)
• C
  11% (2)
• E
  5% (1)

Explanation

Cisco AVS (Application Virtual Switch) supports exactly three switching modes that control how encapsulation and local VM-to-VM traffic are handled: VXLAN with no local switching (A), VLAN with no local switching (D), and VLAN with local switching (F). In VXLAN mode, all traffic is VXLAN-encapsulated and sent to the ACI leaf for forwarding - local switching is never permitted because VXLAN in AVS always requires the fabric to make forwarding decisions. In VLAN mode, traffic can either be sent to the leaf (no local switching) or switched directly between VMs on the same host (local switching), giving two distinct options.

Why the distractors are wrong:

• B (VPC-HM) is a VMM uplink teaming policy, not a switching mode.
• C (VXLAN, local switching) does not exist - AVS does not support local switching when VXLAN encapsulation is in use.
• E (MAC pinning) is also an uplink teaming/bonding policy, not a switching mode.

Memory tip: Think of the grid - two encapsulations (VXLAN, VLAN) × two local-switching options (yes/no) = four combinations, but VXLAN + local switching is the missing quadrant because VXLAN requires the ACI fabric to forward. That leaves exactly three valid modes: the answer set A, D, F.

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