forum.huawei
We''re sorry but web site doesn''t work properly without JavaScript enabled. Please enable it to continue. Loading
01-14 APPENDIX E GUIDE TO USING OPTICAL MODULES
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
Troubleshooting Optical Module Issues
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
OLT Fault
This page provides troubleshooting steps for resolving OLT faults that prevent GPON ONUs from going online.
ALM-135462942 The optical module is invalid 136222
Add -5 dBm (recommended) attenuators to the optical module. If the problem persists after the preceding steps, collect alarms, logs, and configurations, and contact technical support
Setting Optical Power Alarm Thresholds
Setting Optical Power Alarm Thresholds Context You can set optical power alarm so that the device generates alarms if the transmit or receive power of an optical module exceeds a threshold. An alarm
Optical Module Troubleshooting
If there is a Huawei logo on the label, the optical module has been certified for Huawei data center switches. If not, send the model of the optical module to technical support personnel.
ALM-3276800042 Indicates that the optical power exceeds the
Check whether the transmit power lower threshold of the optical module is within the acceptable range. If so, run the transceiver diagnosis threshold tx-power command to change the
Troubleshooting Guidelines for Optical Modules
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
Checking the Optical Module
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
How To Read Optical Module Information On Huawei Switches
Optical modules are widely used in switches, network interface cards (NICs), routers, and other communication devices. During use, reading optical module information helps understand
Huawei enterprise switches
Huawei switches using non-certified optical module may not be able to read the information, can not guarantee the accuracy of the information read, recommend the use of Huawei certified optical
Optical Modules Fail to Communicate
CloudEngine 16800, 9800, 8800, and 6800 Series Switches Troubleshooting Guide (V300) Optical Modules Fail to Communicate Symptom Two optical interfaces are interconnected
Enabling the Optical Module Alarm Threshold Standardization Function
You can enable the alarm standardization function for an optical module to prevent the optical module from reporting alarms when its optical power exceeds the threshold. The system automatically
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
Setting Optical Power Alarm Thresholds
Upper and lower alarm thresholds are set for the transmit and receive power of the optical module on the interface. When the transmit or receive power of an optical module exceeds the upper alarm
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 different models of Huawei switches, and how to resolve issues encountered
Typical Troubleshooting Cases of Optical Module
Check whether the information is consistent with the optical module specifications provided in the product documentation. (For details about the commands for querying port information, see the
Troubleshooting Guidelines for Optical Modules
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
ALM-3276800042 Indicates that the optical power exceeds the
If not, replace the local optical module with a new one to ensure they are of the same type. Add -5 dBm (recommended) attenuators to the optical module. If the problem persists after the
Displaying Optical Module Information
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
Disabling the Optical Module Alarm Function
It is unfeasible to install an attenuator on each optical module to prevent frequent reporting of such power alarms. You can disable the alarm function for the optical module by executing the following
Optical Module: The Device Cannot Display Any Optical Module
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
Optical Modules for Huawei S Series Switches
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
Displaying Optical Module Information
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