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Huawei switch cannot access optical port

Fiber optic splice closure knowledge brief Published 12 Jul 2022

Prepared for preliminary research by the RIVO OPTICAL knowledge desk. Confirm cable count, splice capacity, sealing class, tray layout, protection sleeves and installation requirements against current standards and product documentation.

Huawei switch optical port issues are often caused by module incompatibility, incorrect configuration, or hardware faults, and can be resolved through systematic checks and diagnostics.Common Causes
  1. Optical Module Compatibility: Ensure the optical module matches the switch port type and fiber type. Single-mode modules must be used with single-mode fiber, and multimode modules with multimode fiber. Avoid using modules with a higher rate than the interface supports (e.g., 10G module on a 1G port) .
  2. Port Configuration: The port may be administratively down or misconfigured. Use the command display interface to check the port status. If it shows "Administratively DOWN," enable the port .
  3. Optical Power Issues: Low transmit or receive power can prevent the port from going up. Use an optical power meter to measure the module's transmit and receive power and ensure it is within the normal range .
  4. Non-Huawei Certified Modules: Third-party or non-certified modules may not be recognized. Replace with Huawei-certified modules if necessary .
  5. Physical Installation: Improper insertion or contamination of the optical module can cause failure. Ensure the module is correctly seated, clean the optical bores, and use dust plugs on idle ports .
Diagnostic Steps
  1. Check Port and Module Status: Run display interface and display transceiver interface verbose to view link status, module type, and optical power .
  2. Loopback Test: Connect the fiber jumper to the same module to verify if the port can go up. This helps isolate the issue to the module or the fiber .
  3. Reinstallation and Reboot: Remove and reinstall the optical module, and if necessary, reboot the switch or power cycle it. Ensure the switch software is up to date (V100R006C01SPC100 or later recommended) .
  4. Check Remote Port Configuration: Verify auto-negotiation and other settings on the connected device to ensure compatibility .
Best Practices
  • Always wear an antistatic strap when handling modules .
  • Avoid mixing fiber types and module rates.
  • Keep optical ports clean and covered when not in use.
  • Use Huawei-certified modules to ensure proper operation. If the issue persists after these steps, contact Huawei technical support for further assistance .

Huawei switch cannot access optical port - RIVO MULTITRADE OPTICAL SYSTEMS [PDF]

Huawei switch cannot access optical port

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Technical note

This reference is intended for preliminary fiber optic splice closure research. Compatibility, splice capacity, sealing class, tray layout, protection sleeves, installation methods, test limits and applicable standards must be verified for the specific project.

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