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NE40E-M2 V800R010C10SPC500 Configuration Guide - WAN Access 01

This is NE40E-M2 V800R010C10SPC500 Configuration Guide - WAN Access
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Configuring Transmission Alarm Suppression

Configuring Transmission Alarm Suppression

This section describes the usage scenario, pre-configuration tasks, and configuration procedure for transmission alarm suppression. After a transmission alarm suppression threshold is configured, the alarms that reach the threshold will be reported to the system.

Usage Scenario

In the scenario where transmission devices are connected to IP routing devices, if the network is unstable, transmission devices on the network will generate a large number of burr alarms. As a result, the physical status of interfaces on the transmission devices will switch between Up and Down. To suppress frequent network flapping caused by transmission alarms, or enable IP devices to ignore burr alarms, enable transmission alarm suppression on IP devices.

Pre-configuration Tasks

Before configuring transmission alarm suppression, complete the following tasks:


Transmission alarm suppression can take effect on an interface only after transmission alarm customization is enabled on the interface.


  1. Run system-view

    The system view is displayed.

  2. Perform either of the following configurations as required.
    1. Run interface interface-type interface-number

      The POS or 10GE WAN interface view is displayed.

    2. Run controller cpos cpos-number

      The CPOS interface view is displayed.

    3. Run controller wdm interface-number

      The WDM interface view is displayed.

    4. Run controller e1 controller-number

      The CE1 interface view is displayed.

    5. Run controller e3 controller-number

      The E3 interface view is displayed.

  3. Run transmission-alarm damping [ ceiling ceiling | reuse reuse | suppress suppress | decay-ok decay-ok | decay-ng decay-ng ] *

    Transmission alarm suppression is enabled, and suppression parameters are set.

  4. Run commit

    The configuration is committed.

Checking the Configurations

Run the following command to check the configurations:

Run the display transmission-alarm configuration command to view the transmission alarm configuration of an interface.

<HUAWEI> display transmission-alarm configuration pos 0/1/0
Interface: pos0/1/0
Filter function: enabled (Holdtime is 50)
Damping function: enabled
Suppress value: 1000
Ceiling value: 500
Reuse value: 6000
OK half decay value: 1000
NG half decay value: 1000
# Display the configurations of transmission alarm customization and suppression on GE 0/1/0.
<HUAWEI> display transmission-alarm configuration wan 0/1/0
 Interface: GigabitEthernet0/1/0
  Filter function: disable
  Damping function: enabled
  Suppress value: 999
  Ceiling value: 6000
  Reuse value: 500
  OK half decay value: 500
  NG half decay value: 1000 

# Check the configurations of transmission alarm customization and suppression on E1 0/7/0.

<HUAWEI> display transmission-alarm configuration e1 0/7/0
Interface: e10/7/0                                                                                                                 
  Filter function: disabled                                                                                                         
  Damping function: disabled
Updated: 2019-01-02

Document ID: EDOC1100058399

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