Question

A technician is troubleshooting a switch where a specific server's traffic is being flooded out of every port in its VLAN instead of being forwarded only to the port where the server is connected. Packet captures on unrelated devices show frames destined for the server's MAC address. What is the MOST likely reason the switch is behaving this way?

Accepted Answer

The server's MAC address is not present in the switch's MAC address table, so the switch treats the frames as unknown unicast.

Answer

Spanning Tree Protocol has placed the server's port into a blocking state.

Answer

The switch port connected to the server has exceeded its PoE power budget.

Answer

The VLAN has been configured with an incorrect native VLAN on the trunk.