Dec 08, 2025
To determine whether optical modules delivered for Huawei switches before January 1, 2016 are certified ones, contact Huawei technical support. If your optical modules are delivered after January
Mar 29, 2026
Here are the common commands to use to display hardware-related information on Huawei Routers. The inventory information such as serial number, product code,optical module,device,
May 15, 2026
To determine whether optical modules delivered for Huawei switches before January 1, 2016 are certified ones, contact Huawei technical support. If your optical modules are delivered after January
Mar 05, 2026
Taking the Huawei 5700 series switches as an example, the commands to view optical module information are as follows:
Apr 10, 2026
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.
Dec 02, 2025
How Can I Determine Whether an Optical Module Is a Huawei-Certified Switch Optical Module? Obtain the electronic label of the optical module and contact Huawei technical support personnel to confirm
Mar 17, 2026
Today, ETU-LINK will introduce how to query the information of optical module on Huawei switch. Next, we will introduce the query instructions of relevant parameters of optical
Feb 01, 2026
Optical modules are commonly used in switches, network cards, routers and other communications equipment, in the process of using the optical module information can be read to
Sep 05, 2025
The display device elabel command can also display serial numbers of components on the device, including LPUs, power modules, fan modules, and optical modules. Run the display sn [ all ]
May 24, 2026
A switch must use optical or copper modules that have been certified for use on Huawei switches. Non-certified optical or copper modules cannot ensure transmission reliability and may affect service
Jan 28, 2026
A switch must use optical or copper modules that have been certified for use on Huawei S switches. Non-certified optical or copper modules cannot ensure transmission reliability and may
Mar 03, 2026
A switch must use optical or copper modules that have been certified for use on Huawei S switches. Non-certified optical or copper modules cannot ensure transmission reliability and may affect service
Dec 12, 2025
Use the command display transceiver to view the optical module information of all optical ports, and use the command display transceiver interface interface-type interface-number to view the
Sep 26, 2025
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
Jun 15, 2026
This document describes how to determine the serial numbers of S series switches. The serial numbers of devices are necessary for network construction and device maintenance. These serial numbers
Nov 06, 2025
You can view the product serial number (SN) through the slide-out information label or MM910 WebUI. View the slide-out information label (with the SN). Figure 1-20 shows the position of the slide-out
Apr 12, 2026
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
Dec 31, 2025
Running a Command Run the display device esn command in the user view to check the serial number of the device.
Aug 14, 2025
Optical transceivers are widely applied in switches, network cards, routers and other communication devices. Checking transceiver parameters allows users to monitor real-time
Feb 13, 2026
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
Sep 24, 2025
When Huawei switches are connected to other products such as routers, comply with the preceding optical module interoperation rules. The following describes
Jul 23, 2025
HUAWEI S Series Switch-Identify a Huawei-Certified Optical Module video demonstrates how to identify a Huawei-certified optical module.
Oct 17, 2025
Check the warranty status of your HUAWEI product. Enter the device serial number to view the warranty period and rights. <br/>
Jun 25, 2026
Run the display sn interface interface-type interface-number command to view information about a specified optical module. SN indicates the serial number of the optical module.
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