Typical Troubleshooting Cases of Optical Module
Check whether the optical modules are Huawei-certified ones. If not, contact the supplier of the optical modules. If possible, remove and reinstall the optical modules to check whether the fault is rectified.
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 and reinstall the optical module. If
How To Read Optical Module Information On Huawei Switches
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
How to Troubleshoot transceiver issue in Huawei switch/router/devices
Sending power too high (Current TX Power > Default TX Power High Threshold): Sending signal is too strong, may burn the receiving end, may indicate sending transceiver is broken.
Optical Link Failure Troubleshooting: Switch-to-Switch (SMF/MMF)
Network link down? Learn how to troubleshoot optical link failures between network switches. Essential guide covers checking optical modules, single-mode (SMF) vs. multimode (MMF) fiber integrity, and
An Optical Module Does Not Send Optical Signals
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
Risks of Using Non-Huawei-Certified Switch Optical Modules
Some non-Huawei-certified switch optical modules have improper register values on page A0, which can cause errors or failures when the system attempts to read parameters or
Optical Module Troubleshooting
Check whether the optical module matches the optical fiber. If not, replace the optical fiber or optical module. A single-mode optical module (generally with a center wavelength of 1310 nm or 1550 nm)
Checking the Receive and Transmit Optical Power
If they are damaged, replace them. If the receive optical power is high (Current RX Power has a larger value than Default RX Power High Threshold), the transmit signal strength on the remote optical
Troubleshooting for Optical Modules on Huawei Switch
Use optical modules with a longer transmission distance on the two ports. When connecting switches through optical ports, pay attention to the following points:
Checking the Optical Module Type
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
FAQ-How Do I View the Transmit and Receive Optical Power of an Optical
Modular Switch V200R001 The Current Rx Power (dBM) field in the command output indicates the current receive power of the optical module, and the Current Tx Power (dBM) field
An Optical Module Does Not Send Optical Signals
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 information and contact Huawei technical
Checking the Working Modes
Procedure Run the display transceiver interface interface-type interface-number verbose command to view the optical module parameter settings. All the parameters of each optical module
Risks of Using Non-Huawei-Certified Switch Optical Modules
Some non-Huawei-certified optical modules have defects in data bus designs. Using such an optical module on a switch causes suspension of the connected data bus on the switch. As
Optical Interface Interconnection Is Abnormal on CE Switches
As a result, the remote interface may not go Up or discard packets after it is Up. If the transmit optical power is high (Current TX Power has a larger value than Default TX Power High
Troubleshooting Interface Down Problems
You are advised to check whether the optical modules and optical fibers on the local and remote interfaces are normal. Recover the interface. By default, an interface in error-down state cannot
How Do I Ensure that the Transmit Power and Receive Power of an Optical
If RxPower High is displayed, the received signal strength is too high. The possible reason is that the distance between the local and remote ends is short but a long-distance optical module is used on
Related Video Reference
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