Troubleshooting Guidelines for Optical Modules An Optical Module Does Not Send Optical Signals The Transmit Optical Power of an Optical Module Is Too Low Information About an Optical Module
If an optical module is not cleaned or protected properly, contaminants may accumulate on the fiber pin in the optical module. As a result, the coupling efficiency is reduced, optical signals are cut off, or
Learn how to display optical module information on Huawei devices using specific commands and understand the diagnostic details of optical modules.
Procedure Use an optical power meter to test whether the transmit power of the optical module is normal. If not, replace the optical module.
Devices must use optical modules certified by Huawei. Those that are not certified by Huawei cannot ensure service reliability, and the corresponding optical interfaces may fail to go up. Check whether
Some non-Huawei-certified switch optical modules are not designed in compliance with EMC standards and have low anti-interference capability. Additionally, they bring electromagnetic
For details about the optical modules supported by optical ports on switches, see "Appearance and Structure" of a specific switch model in the Hardware Description. The following figure shows the
Check whether the optical modules are Huawei-certified ones. If not, contact the vendor of the optical modules. If possible, remove and reinstall the optical modules to check whether the
If an optical module on an interface is faulty, you can run the display commands to view information about the optical module. Related Information Video Identify a Huawei-Certified Optical Module
Traditional optical modules do not support intelligent processing. When services are interrupted or NEs are unreachable, the O&M team cannot determine whether the fault is caused by a fiber cut or device
Introduction of Optical Modules on Huawei Switches On an optical network, a sender needs to convert electrical signals into optical signals before sending
The following uses the Moduletek SFP-10G-LR module connected to a Huawei S6700 switch as an example to introduce how to read information of the connected optical module on a
Optical modules are widely used in switches, network interface cards (NICs), routers, and other communication devices. During use, reading optical module information helps understand
The optical module cannot be installed in an optical interface because the optical module structure is non-standard. The structure and size of some non-certified optical modules do not comply with the
Check whether the optical module is Huawei-certified. If it is not certified by Huawei, replace it with a Huawei certified one. Remove and reinstall the optical module. If this resolves the
The optical module installed on the optical interface is not certified for Huawei data center switches. The optical module type does not match the optical fiber type.
Check whether the transmission distance and fiber type of the optical module meet the requirements. Use an optical power meter to test the optical power attenuation of each part of the link and fix the
Call Huawei global service hotline or contact software maintenance engineers to verify the software version. If allowed, reboot the device or power off and restart the device. Services on the
Solve the problem of alarm indicator steady on by clear the alarm after it is confirmed that customer pull out the optical module and shutdown interface manually
If the optical module is faulty, replace it with the spare part. If the fault is caused by the configuration or environment, advise the customer to optimize the configuration or environment.
The optical channel of NE80E shows that NE80E receives the light from NE40E only, while the interface of NE40E is Down. The receiving of the optical module is abnormal or the tail fiber fails.
Remove and reinstall the optical module. If the fault persists, replace the optical module with a normal one of the same type to check whether the optical module is faulty. If the fault persists, collect log
When using switches, we may encounter many confusions, such as what types of optical modules are needed for different models of Huawei switches, and how to resolve issues encountered
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Use an optical power meter to check whether the transmit optical power of the optical module is normal. If the transmit optical power is abnormal, replace the optical module. Remove and reinstall the optical
When certifying an optical module, Huawei switches comprehensively verify optical module functions to ensure the optical module quality. The functions include the installation and removal, transmit and
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