An engineer working for a service provider with an employee ID: 4604:68:004 prepared several designs for a traditional campus network. The design must allow the deployment of the same VLAN to any…

Assuming Diagram A depicts a collapsed core/distribution layer employing technologies like Cisco VSS or StackWise Virtual, this design creates a single logical switch across two physical devices. This enables multi-chassis EtherChannel (MEC) to access switches, allowing the same VLAN to span all access layers with active-active forwarding, ensuring fast convergence, high availability, and resilience by eliminating Layer 2 loops.

A traditional three-tier design relying solely on Spanning Tree Protocol (STP) would typically have blocked links, preventing active-active forwarding and delaying convergence, which fails to meet the fast convergence and high availability requirements.

A routed access design terminates VLANs at the access layer, which prevents the deployment of the 'same VLAN to any switch at the access layer' as required by the problem statement.

A design lacking adequate redundancy or featuring single points of failure would inherently not meet the requirements for high availability and resilience.