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Check the Huijue port optical module

Optical network knowledge brief Published 06 Nov 2024

Prepared for preliminary research by the COETZER OPTICAL knowledge desk. Confirm compatibility, loss budgets and installation requirements against current standards and product documentation.

To check a Huawei switch port optical module, verify its status, power levels, certification, and link functionality using display commands and diagnostic tests.Step 1: Verify Port and Module Information

Run the command display interface to view the port status, interface rate, module type, and link state. The link should be UP for normal operation. If you are unsure of the interface number, use display interface brief to list all interfaces and their types .

Step 2: Check Optical Module Details

Use the command display transceiver interface to view detailed optical module information, including:

  • Transceiver type and connector type
  • Wavelength and transfer distance
  • Vendor and serial number
  • Digital Diagnostic Monitoring (DDM) status
  • Receive (Rx) and transmit (Tx) power levels For more detailed power information, add the verbose parameter: display transceiver interface verbose .
Step 3: Verify Certification and Compatibility

Run display esn interface to check if the module is Huawei-certified. Certified modules show YES in the Certified field. Non-certified modules may work but are less reliable . Ensure the optical module matches the port type and speed (e.g., do not use a 10G module on a 1G port) and that single-mode and multimode fibers are not mixed .

Step 4: Measure Optical Power

Check that the transmit and receive optical power are within normal ranges. Abnormal Tx power may indicate a faulty module, while abnormal Rx power could indicate a problem with the peer module or fiber link .

Step 5: Perform Loopback or Self-Test

To confirm port functionality, perform a loopback test by connecting the fiber jumper to the same module. If the port goes UP, it is functioning normally. If not, try another port to isolate the fault .

Step 6: Troubleshooting
  • Reinstall the optical module to see if the fault resolves.
  • Check port configuration, such as auto-negotiation.
  • Replace the module if it is faulty or non-certified.
  • If the issue persists, reboot the switch or power cycle it, and verify the software version with display version . Following these steps ensures that the optical module is correctly installed, certified, and operating within normal parameters, helping maintain stable network connectivity.

Check the Huijue port optical module - COETZER OPTICAL SYSTEMS (Pty) Ltd [PDF]

Check the Huijue port optical module

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Technical note

This reference is intended for preliminary optical-network research. Compatibility, link budgets, installation methods, test limits and applicable standards must be verified for the specific project.

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