Use Huawei switch commands like display transceiver and display interface to inspect optical modules, check status, and view diagnostic information.

Step 1: Verify Interface and Module Status

First, identify the interface where the optical module is installed. Run:

display interface brief

This command lists all interfaces, their types, numbers, and link status. Ensure the interface is UP, as a down interface may indicate a module or connection issue .

Step 2: Display Optical Module Information

To view detailed information about a specific optical module, use:

display transceiver interface <interface-type> <interface-number>

This command provides key details such as transceiver type, connector type, wavelength, transfer distance, vendor, serial number, and manufacturing date .

For all optical ports on the switch, simply run:

display transceiver

This shows a summary of all connected modules .

Step 3: View Diagnostic Data (DDM)

To check real-time operational parameters like receive/transmit power, temperature, voltage, and bias current, add the verbose parameter:

display transceiver interface <interface-type> <interface-number> verbose

This helps monitor module health and troubleshoot link issues .

Step 4: Run Diagnostics

Huawei switches allow running diagnostics on optical modules:

display transceiver diagnosis interface <interface-type> <interface-number>

This command provides diagnostic parameters to detect faults or abnormal behavior .

Step 5: Use Certified Modules

Always use Huawei-certified optical modules. Non-certified modules may not provide accurate information, can cause data bus errors, or damage the interface due to nonstandard sizes .

Step 6: Additional Checks

• Determine if the module is single-mode or multi-mode.
• Check optical attenuation and signal transmission quality.
• Monitor alarms and environmental parameters to ensure proper operation .

By following these steps, you can effectively inspect, monitor, and troubleshoot Huawei optical modules, ensuring reliable network performance.