Huijue switches may only recognize SWWN modules because they require certified optical transceivers for proper operation.

Module Compatibility and Certification

Huijue switches, similar to Huawei S series switches, often require certified optical modules to ensure reliable transmission and service stability. Non-certified modules may not be recognized or may trigger alarms, even if they physically fit the port . Certification ensures that the module meets electrical, optical, and EMC standards, and that its register values are compatible with the switch's firmware .

Common Causes of Recognition Issues

1. Non-certified Optical Modules: If the module is not SWWN or another certified type, the switch may fail to recognize it or report it as non-certified .
2. Software Version: Certain firmware versions (e.g., V200R001 or later) enforce stricter recognition rules for optical modules. Older or non-encrypted modules may trigger alarms or fail to be recognized .
3. Configuration Mismatch: Interface settings such as auto-negotiation, rate, or duplex may prevent the port from coming up even if the module is physically compatible .
4. Hardware or Environmental Issues: Faulty ports, contaminated optical bores, or improper fiber connections can also cause recognition failures .

Troubleshooting Steps

1. Verify Module Certification: Check if the optical module is certified for Huijue/Huawei switches. Certified modules usually have the manufacturer name and certification label. You can also contact technical support to confirm certification .
2. Check Port and Interface Status: Use commands similar to display interface GigabitEthernet x/x/x to verify the port rate, wavelength, and operational status .
3. Inspect Physical Connections: Ensure the fiber is clean, properly connected, and that the optical power is within specification using an optical power meter .
4. Update Firmware: Ensure the switch is running a firmware version compatible with the optical module. Upgrading to a later version may resolve recognition issues .
5. Replace or Test Modules: If the module is non-certified or faulty, replace it with a certified SWWN module. Loopback tests or testing with another certified module can help isolate the problem .

Recommendation

To resolve the recognition issue, use only SWWN or other certified optical modules for Huijue switches. Avoid non-certified modules, as they may not be recognized or could cause service instability. If problems persist after verifying certification and configuration, contact Huijue technical support for further assistance.