Huawei does not recognize optical modules
Huawei devices may fail to recognize optical modules due to hardware faults, compatibility issues, or improper installation, and can often be resolved through inspection, testing, and configuration checks.
Common Causes
- Faulty or Improperly Installed Module: The optical module may be defective or not securely seated in the port. Reinstalling the module or testing it in another compatible port can help identify this issue .
- Compatibility Issues: Huawei devices may not recognize non-Huawei-certified modules or modules incompatible with the port type, speed, or fiber type (single-mode vs. multi-mode). Using a module with a higher rate than the interface can also cause recognition failure .
- Optical Power Problems: Abnormal transmit or receive optical power can prevent the device from detecting the module. Testing with an optical power meter or using the
display interface transceiver verbosecommand can help verify power levels . - Port Configuration Mismatch: Differences in speed, duplex mode, or negotiation settings between the port and the module can prevent recognition. Ensuring both ends of the link have matching configurations is essential .
- Contaminated Optical Bores: Dust or dirt on the optical connectors can block signal transmission. Cleaning the optical bores with a cotton swab and using dust caps on idle modules can resolve this .
Troubleshooting Steps
- Check Module Installation: Remove and reinstall the optical module carefully. If the problem persists, try rebooting or power cycling the device .
- Verify Compatibility: Ensure the module matches the port type, speed, and fiber type. Avoid mixing single-mode and multi-mode modules or fibers .
- Test Optical Power: Use an optical power meter or the
display interface transceiver verbosecommand to check transmit and receive power levels. Replace the module if power is abnormal . - Inspect Fiber and Connectors: Check for damaged or dirty fibers and connectors. Replace or clean as necessary .
- Check Port Configuration: Use commands like
display interface <interface>to verify the port is not administratively down and that speed, duplex, and negotiation settings match the module requirements . - Use Certified Modules: Prefer Huawei-certified optical modules to ensure reliability and proper recognition .
Commands for Verification
display interface <interface>: Shows interface status, link state, and module type .display transceiver interface <interface> verbose: Displays transmit and receive optical power and module details .display devm/ports/port[position="..."]/optical-module/all: Checks optical module information and power levels . Following these steps usually resolves recognition issues. If the problem persists after testing, replacing the module, and verifying configuration, collecting logs and contacting Huawei technical support is recommended .
Industry Installing an Optical Module
Installing an Optical Module Context This section describes how to install an optical module. The method used to install a copper
Industry Troubleshooting Optical Module Issues
Check whether the transmit optical power and receive optical power of the optical module are within the normal range.
Industry How Can I Determine Whether an Optical Module Is Officially
Therefore, you can check whether an alarm is generated to determine whether an optical module is officially delivered
Industry Replacing an Optical Module
Optical modules are electrostatic-sensitive components; therefore, you must take ESD protection measures when replacing optical
Industry Optical Interface Interconnection Is Abnormal on CE Switches
Possible Causes The optical module model does not match. The transmit or receive optical power of an optical
Industry Troubleshooting Guidelines for Optical Modules
If the optical module type does not match the interface (fault ID: 136203), check whether the optical module rate is
Industry Huawei Optical Switch View Optical Module Commands
Taking the Huawei 5700 series switches as an example, the commands to view optical module information are as
Industry An Optical Module Does Not Send Optical Signals
Remove and reinstall the optical module. If the fault persists, replace the optical module with a normal one of the same type to check
Industry Troubleshooting for Optical Modules on Huawei Switch
Check whether the optical module is Huawei-certified. If it is not certified by Huawei, replace it with a Huawei certified one. Remove
Industry How To View Optical Transceiver Information On Huawei Switches
Optical transceivers are widely applied in switches, network cards, routers and other communication devices.
Industry ALM-135462942 The optical module is invalid 136221
Replace the optical module, and check whether the alarm is cleared. If so, the alarm handling ends. If not, collect alarms, logs, and
Industry WHAT IS AN OPTICAL MODULE AND ITS FAQS (V200)
Optical modules that are not certified for Huawei data center switches cannot ensure transmission reliability and may affect service
Industry Information About an Optical Module Cannot Be Read
Check whether the optical module has been certified for Huawei Ethernet devices. If not, contact the supplier of the
Industry Checking the Optical Module Type
Some non-certified optical modules are not designed in compliance with EMC standards and have low anti-interference capability.
Industry ALM-3276800044 An Optical Module Installed on the Device Is Not a
If this optical module is not delivered from Huawei or is not customized for Huawei, replace it with a Huawei
Industry ALM-135471444 hwOpticalUnAuthorized_Common Alarms_V600
If the optical module is delivered by Huawei in the early stage, the system is not affected. If not, the optical module
Industry Displaying Optical Module Information
The optical module design does not comply with the EMC, its anti-electromagnetic interference capability is low, and the optical
Industry Optical Module: The Device Cannot Display Any Optical Module
Procedure Check whether the optical modules are Huawei-certified ones. If not, contact the vendor of the optical
Industry Optical Modules Fail to Communicate
Procedure Check whether the optical modules have been certified by Huawei. Devices must use optical modules certified by Huawei.
Industry Optical Module Solutions for Huawei S5700/S5720 Series Switches
When using switches, we may encounter many confusions, such as what types of optical modules are needed for
Industry Checking the Optical Module
Ensure that the rate, wavelength, and transmission distance of the interconnected optical modules are consistent. Using the same
Industry FAQs About Optical Modules
For details about the optical modules supported by optical ports on switches, see "Appearance and Structure" of a specific switch
Industry Optical Interface FAQ: Transceiver Compatibility Guidelines for
Q7: What is the optical module interoperability standard for different Huawei products? Broad interoperability between Huawei
Industry ALM-3276800022 Indicates that optical module power abnormal
Run the display transceiver verbose command to check the power of the optical module. Check whether the interface
Industry Optical Module Solutions for Huawei S5700/S5720 Series Switches
This article summarizes several solutions for using optical modules with switches and common problems encountered
Industry Why Are Alarms About Optical Modules That Are Not Certified for Huawei
Vendor information of optical modules early delivered from Huawei may not be recorded. Therefore, alarms about
Industry Replacing an Optical Module
Replacing an Optical Module Context Invisible laser beams will cause eye damage. When replacing optical modules, do not look into
Industry Case Study: Optical Modules on the Local and Remote Devices
The optical module installed on the optical interface is not certified for Huawei data center switches. The optical module type does