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
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.
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
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When the LOS LED blinks slowly, check whether the pigtail fiber is connected normally and whether the optical connector is contaminated. When
After the optical module does not satisfy the non-MSA authentication protocol structure dimensions, when inserted into the optical interface of such a light module, since the size of the problem of the
If the transmit optical power is abnormal, replace the optical module. Remove and reinstall the optical module. If the fault persists, replace the optical module with a normal one of the same type to check
Q2: Cisco switches are connected to Huawei switches using light modules and fiber optic jumpers, and the lights are not lit. A: The aperture is
For example, the transmission distance supported by OM1 optical fibers in the preceding command output is 150 m. If the actual transmission distance exceeds 150 m, use an optical fiber with a longer
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Optical modules are widely used in switches, network interface cards (NICs), routers, and other communication devices. During use, reading optical module information helps understand
Therefore, alarms about optical modules that are not certified for Huawei Ethernet switches are generated. You can run the transceiver non-certified-alarm disable command to disable the alarm
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
Procedure Use an optical power meter to test whether the transmit power of the optical module is normal. If not, replace the optical module.
When certifying an optical module, Huawei comprehensively verifies the functions of the optical module to ensure the optical module quality. The functions include the installation and removal, transmit and
Context If optical modules that are not certified for Huawei data center switches are used on devices, the devices will generate a large number of alarms to prompt users to replace these optical modules with
Use the idle optical module on the storage device to exchange with PO and check whether the fault is rectified. If the fault persists, it indicates that the optical module is not faulty.
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
Therefore, you can check whether an alarm is generated to determine whether an optical module is officially delivered by Huawei. The following alarm is generated when an optical module
Check the model and working mode (single-mode or multimode) of the optical modules on the connected devices. Use the patch cords accordingly. If the optical port still fails to go Up, replace the
Learn how to display optical module information on Huawei devices using specific commands and understand the diagnostic details of optical modules.
If not, replace the optical module or collect alarm information and configuration information, and then contact technical support personnel.
As shown in Figure 1-3, when converting electrical signals into optical signals, the laser in the optical module emits light based on the input
Using a Command If an optical module is installed in a running router, you can run the display transceiver command to view parameters of the optical module, including the center wavelength,
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.
Troubleshooting Optical Module Issues Symptom An optical port cannot go Up. The optical module cannot be properly identified and optical module information cannot be obtained. After
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 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
Possible Causes The optical module model does not match. The transmit or receive optical power of an optical module is not within the normal range. The optical module and optical
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