A
After BPDU protection is enabled on a switch, if an edge port on the switch receives a BPDU, the switch will shut down the edge port, while keeping the port attribute unchanged. This ensures that the spanning tree topology is not recalculated and services are not interrupted. In addition, the switch generates the following log information and notifies the NMS of this event:
MSTP/4/BPDU_PROTECTION:This edged-port [port-name] that enabled BPDU-Protection will be shutdown, because
it received BPDU packet!