Câu 38: H31-341-V2-5: Huawei HCIP-Transmission V2.5

In a 1+1 OTS optical line protection scenario, when the network is normal, the input optical power of the RI1 port on the OLP board is 10 dBm and that of the RI2 port on the OLP board is 8 dBm. The initial input difference between the working and protection channels is set to the default value 0dB, and the input difference threshold of the working and protection channels is set to default value 5dB. Which of the following scenarios can trigger switching?

1. A. The active optical cable is broken, and the loss of the standby optical cable increases by 5 dB.
2. B. The loss of the active optical cable increases by 6 dB, and the loss of the standby optical cable remains unchanged.
3. C. The loss of the active optical cable increases by 7 dB, and the loss of the standby optical cable increases by 2 dB.
4. D. The loss of the active optical cable increases by 7 dB, and the loss of the standby optical cable remains unchanged. — đáp án hiện tại