stack port { crc | link-flap } trigger error-down

Function

The stack port { crc | link-flap } trigger error-down command enables the stack port error-down function.

The undo stack port { crc | link-flap } trigger error-down command disables the stack port error-down function.

By default, the stack port error-down function is enabled.

Format

stack port { crc | link-flap } trigger error-down

undo stack port { crc | link-flap } trigger error-down

Parameters

Parameter	Description	Value
crc	Enables stack port error-down triggered by CRC errors.	-
link-flap	Enables stack port error-down triggered by port Up/Down transitions.	-

Views

System view

Default Level

3: Management level

Usage Guidelines

Usage Scenario

In a stack system, if a stack port continuously receives CRC error packets or flaps between Up and Down states, the corresponding stack link cannot forward traffic normally, thereby affecting network services. This command enables the stack port error-down function. This function can shut down a stack port and switch traffic to other stack links if the rate of received CRC error packets or the number of Up/Down transitions on the stack port reaches the specified threshold, reducing the impact on services. Additionally, the system generates stack port error-down alarms to help in fault location.

Follow-up Procedure

Run the stack port { crc | link-flap } trigger command to set stack port error-down parameters.

Precautions

When one end is a stack port and the other end is a service port, the system does not set the stack port to error-down state or generate an error-down alarm even if this stack port continuously receives CRC error packets.
The stack port error-down alarm OID is 1.3.6.1.4.1.2011.5.25.183.1.22.59.
The stack port error-down alarm clearance OID is 1.3.6.1.4.1.2011.5.25.183.1.22.60.

Example

# Enable stack port error-down triggered by CRC errors.

<HUAWEI> system-view
[HUAWEI] stack port crc trigger error-down