1:N linear multiplex section protection: when the working channel is unavailable, the service is switched to the protection channel for transmission, and the additional service originally transmitted on the protection channel is interrupted.

LCK insertion takes precedence over AIS insertion. That is, if the user configures LCK insertion and the conditions for automatic AS insertion are met, the LCK is inserted.

Which types of destination MAC addresses in Ethernet frames can be classified into? (Multiple choice)

What are the options for the switch's switching mode? (Multiple choice)

The difference between ASON network and ordinary network is that it introduces the concept of signaling.