Which feature disables an edge port when spanning tree communications are received on that port?

The feature that disables an edge port when spanning tree communications are received on that port is BPDU protection. In a network utilizing the Spanning Tree Protocol (STP), edge ports, which are typically connected to end devices like computers or printers, should not receive Bridge Protocol Data Units (BPDUs). If an edge port does receive a BPDU, it indicates that there is a potential misconfiguration or a loop that could cause issues in the network.

BPDU protection acts as a safeguard for these edge ports. When it detects a BPDU, it automatically disables the port to prevent potential network disruptions or loops, ensuring that the integrity of the spanning tree topology is maintained. This mechanism helps to promote a stable network by quickly reacting to unintended configurations.

Other options, while related to spanning tree functionality, serve different purposes. For example, RSTP edge port configurations allow ports to bypass typical STP listening and learning states to go directly into the forwarding state when they are connected to edge devices, but they do not disable the port upon receiving BPDUs. Similarly, root protection prevents a port from becoming a root port when the improper network configuration is detected, and switch protection refers to a feature that can protect against specific conditions but does not directly relate