What is the primary benefit of VSX clustering when used with Aruba CX switches?

What is the primary benefit of VSX clustering when used with Aruba CX switches?

• A. Stacked data-plane
• B. Faster MSTP converge processing
• C. Dual Aruba AP LAN port connectivity for PoE redundancy
• D. Dual control plane provides better resiliency

Answer: (D)

VSX clustering provides a redundant control plane across two Aruba CX switches, letting them operate as one logical switch. Each switch runs its own control-plane processes and keeps them synchronized, so if one control plane or switch encounters a problem, the other can take over without disrupting forwarding. This arrangement delivers higher availability and resilience for the fabric, which is the main advantage of using VSX. Other options don’t capture this primary benefit: VSX isn’t about stacking a single data plane for the whole stack, MSTP convergence speed isn’t the core improvement, and PoE redundancy for APs isn’t the primary outcome of VSX clustering.

VSX clustering provides a redundant control plane across two Aruba CX switches, letting them operate as one logical switch. Each switch runs its own control-plane processes and keeps them synchronized, so if one control plane or switch encounters a problem, the other can take over without disrupting forwarding. This arrangement delivers higher availability and resilience for the fabric, which is the main advantage of using VSX.

Other options don’t capture this primary benefit: VSX isn’t about stacking a single data plane for the whole stack, MSTP convergence speed isn’t the core improvement, and PoE redundancy for APs isn’t the primary outcome of VSX clustering.