Câu 47: H12-821: HCIP-Datacom-Core Technology V1.0

On an RSTP network, several new protection functions are added, such as root protection, loop protection, and TC BPDU attack defense. Which of the following statements are true about the new protection functions of RSTP? (Choose all that apply.)

1. A. When a designated port enabled with root protection receives RST BPDUs with a higher priority, the port cannot forward packets for a period of time. — đáp án hiện tại
2. B. After loop protection is enabled, if the root port does not receive BPDUs from the upstream device for a long time, the root port becomes a designated port. — đáp án hiện tại
3. C. After TC BPDU attack defense is enabled, the device processes excess TC BPDUs together only once after the timer expires.
4. D. If BPDU protection is enabled on a device, the attributes of edge ports are affected. — đáp án hiện tại