ais suppress-alarm

Function

The ais suppress-alarm command enables alarm suppression on the device.

The undo ais suppress-alarm command disables alarm suppression on the device.

By default, alarm suppression is disabled on the device.

Only the S5720-EI, S5720-HI, S5720I-SI, S5720S-SI, S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5730-HI, S5730S-EI, S5730-SI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720-LI, S6720S-EI, S6720S-LI, S6720S-SI, S6720-SI, S6730-H, S6730S-H, S6730-S, and S6730S-S support this command.

Format

ais suppress-alarm

undo ais suppress-alarm

Parameters

None

Views

MA view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

In MD nesting scenarios, after a MEP in a high-level MD receives an AIS PDU, the MEP does not send an alarm to the NMS. If the MEP does not receive any AIS PDU within the period 3.5 times as long as the interval at which AIS PDUs are sent, the alarm suppression function is disabled automatically on the local device.

If a MEP detects a link fault and sends an alarm to the NMS before receiving an AIS PDU, run the ais suppress-alarm command to enable the alarm suppression function. The MEP sends only an alarm indicating that the link fault is rectified if the MEP detects that the link fault is rectified.
If a MEP does not detect a link fault before receiving an AIS PDU, after the ais suppress-alarm command is used to enable the alarm suppression function, the MEP does not send an alarm to the NMS if the MEP detects a link fault.

Precautions

The ais suppress-alarm command can be used on only the device running IEEE Standard 802.1ag-2007.

Prerequisites

An MD has been created using the cfm md command, an MA has been created using the ma command, and AIS has been enabled using the ais enable command.

Example

# Create an MD named md1, create an MA named ma1 in the MD, and enable alarm suppression in ma1.

<HUAWEI> system-view
[HUAWEI] cfm md md1
[HUAWEI-md-md1] ma ma1
[HUAWEI-md-md1-ma-ma1] ais suppress-alarm