Company XYZ needs advice in redesigning their legacy Layer 2 infrastructure.

Switch clustering (VSS, StackWise, MLAG, MC-LAG, vPC) at the distribution/core layer eliminates the need for STP convergence by creating a logical single switch for Layer 2 and Layer 3 functions.

This design provides active-active uplinks, faster convergence, and loop-free operation, directly addressing STP and FHRP limitations.

Why other options are incorrect:

A: Access layer clustering is less common and doesn’t address core convergence delays.

C: PortFast improves convergence on edge ports but not in the core/distribution path.

D: BFD enhances Layer 3 failure detection but not Layer 2 loop prevention or STP convergence.