Which statement describes the term root port in the operation of STP?
- It is a port that connects to the root bridge or an upstream switch in the spanning-tree topology.
- It is a port state that can modify the MAC address table with any network traffic that it receives, but only forwards BPDUs and not any other network traffic.
- It indicates that the port has transitioned from a blocking state and can send or receive BPDUs, but cannot forward any other network traffic.
- It is a port state that can forward all network traffic and can update the MAC address table.
| Explanation & Hints:
The statement that describes the term root port in the operation of STP (Spanning Tree Protocol) is:
Explanation: In the context of STP, each non-root bridge must have a single root port. The root port is the port on the switch that has the lowest cost path to the root bridge. It is through this port that the switch has its best path to the root bridge in the spanning tree topology. The root port is always in a forwarding state if the switch is not the root bridge itself, allowing it to forward traffic towards the root bridge. This port plays a crucial role in ensuring loop-free and efficient paths for network traffic within the spanning tree topology. |