This object is a read-write boolean controlling BPDU Filter, which prevents a port from sending BPDUs, and if a BPDU is nonetheless received on a Port Fast-enabled port, the port loses its Port Fast status and BPDU filtering is disabled. Administrators use it to stop unnecessary BPDU traffic on ports that don't need to participate in spanning-tree negotiation, such as pure host-facing ports. For example, enabling stpOptfBpduFilter on an access port keeps it from broadcasting BPDUs toward a connected end-user device.