Huawei H31-311_V2.5 - HCIA-Transmission V2.5
According to ITU-T's recommendations, the requirement that the MSP switching time should be within 50ms is conditional. For example, the number of net elements on the entire ring network is less than 16.
The rate of STM-1 is ()bit/s.
Which of the following is the meaning of "L" in the optical module parameter "L-64.2"
When there is a Critical False In Seconds (SES) in the PM portion of the ODUk layer, which of the following alarms is reported by NMS?
Which of the following is the functional unit that provides a high-speed signal interface and processes the corresponding signal?
Which of the following is the feature of TCM overhead in ODUk signals?
When the ACT indicator of the SDH board is off, it means that the board has a hardware failure and cannot be used.
Which of the following alerts does not trigger an AU-AIS alert?
WDM transmits optical signals multiplexed at multiple rates (wavelengths) through a single optical fiber, and the digital signals carried by these optical signals must have the same rate and data format
Which of the following are device-level protection schemes for SDH products? (Multiple choice).
