If the LOS alarm is displayed, the local optical interface does not receive signals from the remote interface. Run the display this command in the interface view to check whether the two interfaces have been shut down. If an interface is shut down, run the undo. You can configure the alarm thresholds for the power, temperature, current, and voltage of optical modules, and the interval at which the inter-integrated circuit (I2C) collects optical module alarm information to shield unnecessary alarms. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos. To restrict the use of third-party optical modules on their devices, mainstream hardware manufacturers usually detect inserted optical modules. The detection content includes the module manufacturer name, model number, serial number, and customized data segments (plain text or dynamic encrypted. WLAN/4/AP_OPTICAL_RX_POWER_TOO_LOW:OID AP optical module received power is too low notify. By default, numerous alarm messages will be generated when a non-original Huawei module is used.
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