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S12700 V200R010C00 Configuration Guide - Device Management

This document describes the principles and configurations of the Device Management features, and provides configuration examples of these features.
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Setting Optical Power Alarm Thresholds

Setting Optical Power Alarm Thresholds


You can set optical power alarm thresholds using commands. When the transmit or receive power of an optical module exceeds the alarm threshold, an alarm is generated, indicating that the optical module may be faulty.

An optical module has default optical power alarm thresholds, which are fixed and cannot be changed. The configured optical power alarm thresholds must be within the default range. The default optical power alarm thresholds are proper values verified by testing. Therefore, it is not recommended to change the alarm thresholds of optical modules. When an optical power alarm is generated, check the optical module and connected fibers first.

  • The system may fail to obtain information about non-Huawei-certified switch optical modules or obtain incorrect information. You are advised to use Huawei-certified switch optical modules.

  • Only enhanced optical modules support the query of optical power information.

  • The XGE interfaces connected to the ET1D2IPS0S00, ET1D2FW00S00, ET1D2FW00S01, and ET1D2FW00S02 cards do not support the configuration of optical power alarm thresholds.

  • The XGE interface connected to the ACU2 card does not support the configuration of optical power alarm thresholds.


  1. (Optional) Run:

    display transceiver [ interface interface-type interface-number | slot slot-id ] [ verbose ]

    Conventional, manufacturing, and alarm information about the optical module on a specified interface is displayed.

  2. Run:


    The system view is displayed.

  3. Run:

    interface interface-type interface-number

    The interface view is displayed.

  4. Run:

    set transceiver { transmit-power | receive-power } { upper-threshold | lower-threshold } threshold

    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 threshold or falls below the lower alarm threshold, an alarm is generated.

Updated: 2019-08-21

Document ID: EDOC1000142080

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