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Huijue checks the optical module speed

Fibre interconnection and data room reference Published 03 Feb 2026

Use this reference to prepare product questions for FD SOLUCIONES. Check interfaces, capacity, protection and installation requirements against the current product documentation.

You can check the speed of a Huawei optical module using the display transceiver or display interface commands in the CLI.

Using the CLI to Check Module Speed

Display Transceiver Information

Run the command: display transceiver interface This command shows detailed information about the optical module installed on a specific interface, including its supported speed, type, vendor, wavelength, and DDM parameters such as temperature, voltage, and optical power. Example: display transceiver interface xgigabitethernet0/0/2 verbose This will display all relevant details for the module on port 0/0/2, including whether the module is compatible with the interface speed.

Check Interface Status

Use the command: display interface This shows the administrative and operational status of the port. If the interface speed is mismatched with the optical module (e.g., a 10G module on a 1G interface), the port may not come up or may show errors. Look for fields like Actual Cfg or Neg to confirm the negotiated speed between the module and the switch.

Verify Module Compatibility

Ensure the optical module is Huawei-certified. Non-certified modules may not report speed correctly or may be limited in functionality. Avoid using a module with a higher rate than the interface supports, as this can prevent the port from establishing a link.

Optional Diagnostics

For deeper analysis, run: display transceiver diagnosis interface This provides digital diagnostic monitoring (DDM) data, which can help verify that the module is operating within normal parameters and confirm its speed indirectly through signal quality and link status.

Summary

To check the optical module speed on Huawei devices: Use display transceiver for module details and speed. Use display interface to confirm the port's operational speed. Ensure module compatibility with the interface to avoid mismatches.

Optionally, use display transceiver diagnosis for detailed diagnostics and DDM monitoring. Following these steps ensures accurate verification of optical module speed and proper operation on Huawei switches.

Huijue checks the optical module speed - FD SOLUCIONES OPTICAL SYSTEMS [PDF]

Huijue checks the optical module speed
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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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