Which of the following is not a basic component of a WDM system?

For management unit pointer adjustment, when VC>AU rate, which of the following adjustments will the device make?

() is called optical transmission segment in Chinese, and (OMS) is called optical multiplexing segment in Chinese.

The scope of management of OMSn is the path from the input optical port on the multiplexer unit of the sending site to the output optical port on the multiplexer unit of the receiving site, called the optical multiplexing segment (OMS) path.

Which of the following descriptions about the Ethernet frame structure is wrong?