NE80E version: VRP5.30-31002S.03
Regarding that the physical layer is up when NE80E optical module is under self-adaption and forced state
1. Set optical interface as self-adaption negotiation auto mode. When optical channel can normally receive and send the fiber, the physical layer is up.
2. Set optical interface as forced 1000M full-duplex mode. When RX interface can normally receive the fiber, the physical layer is up.
If the opposite has no special demands, it is suggested to configure it as self-adaption. Otherwise the module or fiber is problematic, the communication with opposite device is interrupted. But there is no way to check alarm information that the port is down.