The issue here is that the fiber port on SW2 is blocked by Spanning Tree. To resolve this, we need to adjust the port priority on the ports connected to Link 2. Since the fiber port must be the primary port for all forwarding, we should increase its priority. The correct command is to enter spanning-tree port-priority 224 on SW1, which will give the fiber port a higherpriority and allow it to become the designated port for forwarding12. References := Cisco Community discussions on port priority and securing VTY lines