The path method to create Och does not need to search the path on the network management, it can be found in the network management service management, and the single-site method must first start the search

0TUK_LOF is a 0TUK layer alarm, which means the OTuk frame is lost, the FAS frame alignment is detected, and the alarm is reported when the frame is out of synchronization for 5ms. The alarmends after the frame synchronization state is restored for 5ms.

Regarding the function of backing up and restoring all data in the network management database, which of the following statements is correct?

The IP address of the interconnection interface generally uses a 30-bit mask. Which of the following IP addresses can be configured at both ends of the link?

The pump laser is the energy source of the EDFA, and its function is to provide energy for the amplification of the optical signal. Which of the following wavelengths can be used as the output wavelength of the pump source in the EDFA structure?