In a 2.5GMSP ring consisting of four MSTP sites, which of the following statements about alarm reports is correct when a protection switchover occurs?
Which of the following statements about signal label byte C2 are incorrect?
Manual configuration will clear the data on the NE side
Which of the following statements about the sequence of a signal flow between the SDH interface and the cross-connect unit is true?
Which of the following are key technologies in a WDM system?
In the frame structure of the SDH signal, there are large overhead bytes for operation, management, and maintenance (OAM). Overhead bytes account for all bits () of the entire frame and greatly enhance the monitoring capabilities of the network.
When you configure services on a per-NE basis, which of the following protection scenarios does not require subnet configuration before subsequent protection operations?
Which of the following are the main advantages of SDH?
Which of the following alerts does not trigger an AU-AIS alert?
After the U2000 sends configuration data to the network element, if the SCC single board authentication fails, the network element enters the installation state.