An unprotected chain consists of four net elements; ME1, NE2, NE3 and NE4.
Create an end-to-end VC4 path NE1-NE4 and add NE5 between NE2 and NE3 for capacity expansion.
The original configuration remains unchanged and no services are configured on the NE5.
In this case, the unprotected chain becomes NE1-NE2-NE5NE3-NE4, how many VC4 paths can be searched?
On OSN Series transmission devices, ethernet ports cannot access tagged and untagged frames at the same time
Which of the following is the functional unit that provides a high-speed signal interface and processes the corresponding signal?
For OSN3500, there is a slot mapping relationship between the processing board and the interface pre-processor. The processing board in slot 1 maps to the interface board in slots 19-20.
Which overhead below 112 is not ODUk overhead?
Forced switching, fiber switching, manual switching and motion switching are decreased in order of priority.
In the system control unit, which of the following databases does not lose data after a power failure? (Multiple choice).
Which of the following statements about ODUk_PM_BDI is correct?
Array waveguide grating (AWG) multiplexer/multiplexer has the following advantages: short wavelength spacing, large number of channels and flat passband. Suitable for DWDM systems in ultra-high speed, large tubes.
