Use the display transceiver and display transceiver diagnosis commands to view detailed information and diagnostics of optical modules on Huawei switches.

Step 1: Identify the Interface

First, determine the interface where the optical module is installed. You can list all interfaces with:

display interface brief

This command shows interface types, numbers, and link status. Ensure the interface is UP, as the module must be active to read accurate information .

Step 2: View Basic Optical Module Information

To check the optical module on a specific interface, run:

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

This command provides:

• Module type (e.g., 10GBASE_LR_SFP)
• Connector type (e.g., LC)
• Wavelength (nm)
• Transmission distance (m)
• Vendor and serial number
• Manufacturing date
• Digital Diagnostic Monitoring (DDM) support

Step 3: Check Diagnostic Parameters (DDM)

For real-time diagnostics, use:

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

This displays DDM parameters, including:

• Receive power and transmit power
• Temperature
• Voltage
• Bias current These values help verify whether the module is operating within normal thresholds .

Step 4: View All Optical Modules

To see information for all optical ports at once:

display transceiver

This lists all installed modules, their types, and basic status, useful for a quick overview .

Step 5: Verify Huawei-Certified Modules

Huawei switches may not fully support non-certified modules. Using certified modules ensures accurate readings and proper operation. Non-certified modules may fail authentication or provide incomplete data .

Summary

1. Identify the interface with display interface brief.
2. Check module details with display transceiver interface <type> <number> verbose.
3. View real-time diagnostics with display transceiver diagnosis interface <type> <number>.
4. Optionally, list all modules with display transceiver.
5. Prefer Huawei-certified modules for reliable operation and accurate monitoring. Following these steps allows you to monitor optical module health, troubleshoot link issues, and verify module specifications on Huawei switches.