The length range of the DATA field in the Ethernet frame structure is?

Milliwatts (m) and () (dBm) are two commonly used optical power units, the former is linear, and the latter is nonlinear.

In the G.652 optical fiber and LEAF optical fiber system, the coherent mixed transmission of super 100G and 100G needs to set up an isolation zone.

The network element addresses used by each layer in the HWECC protocol stack are all network element IDs. The length of the network element ID is (Jbit, the highest () bit is called the subnet number (or extended ID) and the lower () bit is called the basic ID.

Which of the following statements about MST functional modules are correct? (Multiple choice)