Do interfaces in a Forwarding state send or receive BPDUs?

In the context of the Spanning Tree Protocol (STP), interfaces that are in a Forwarding state do indeed send and receive Bridge Protocol Data Units (BPDUs). BPDUs are crucial for the operation of STP as they help in the detection of network loops and the maintenance of a loop-free topology by allowing switches to share information about their status with one another.

When an interface is in a Forwarding state, it is fully operational, meaning it can actively participate in the data frame forwarding process as well as the STP protocol functions. This means that the switch's interfaces will generate BPDUs to announce their presence on the network and their role within the spanning tree topology. They also listen for BPDUs from other switches in the network to determine their role, contributing to the overall stability and efficiency of the network.

The other options do not accurately represent the function of interfaces in a Forwarding state regarding BPDUs. Understanding the importance of BPDUs in maintaining a loop-free network environment is essential for proper switch configuration and ensuring robust network performance.