port-alarm down

Function

The port-alarm down command enables the function to shut down the associated physical port when an alarm is reported on an interface.

The undo port-alarm down command disables the function to shut down the associated physical port when an alarm is reported on an interface.

By default, the function to shut down the associated physical port is disabled when an alarm is reported on an interface.

Format

port-alarm down { crc-error | input-error | output-error | symbol-error } ^*

undo port-alarm down { crc-error | input-error | output-error | symbol-error } ^*

Parameters

Parameter	Description	Value
crc-error	Specifies CRC alarms.	-
input-error	Specifies input alarms.	-
output-error	Specifies output alarms.	-
symbol-error	Specifies symbol alarms.	-

Views

100GE interface view, 10G LAN interface view, 25GE interface view, 400GE interface view, 40GE interface view, 50GE interface view, GE optical interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
device-mgr	write

Usage Guidelines

Usage Scenario

This command can be used to shut down the associated physical port when an alarm of a certain type is reported to the NMS. The type of the alarm can be a CRC, SDH, input, output, symbol alarm.

You can run the port-alarm clear command to clear the alarms generated on a port and restore the port.

Precautions

This command takes effect only when the corresponding alarm function is enabled. You can run the snmp-agent trap enable port command to enable the function to generate alarms for CRC, SDH, input, output, symbol errors on an interface.

Example

# Set the physical interface to go Down when an alarm for CRC errors is generated.

<HUAWEI> system-view
[~HUAWEI] interface GigabitEthernet 0/1/0
[*HUAWEI-GigabitEthernet0/1/0] port-alarm down crc-error