crc-alarm enable

Function

The crc-alarm enable command enables the alarm function for CRC errors on the AP's wired interface and specifies the alarm threshold and clear alarm threshold.

The undo crc-alarm enable command disables the alarm function for CRC errors on the AP's wired interface and restores the alarm threshold and clear alarm threshold to the default values.

By default, the alarm function for CRC errors is disabled on the AP's wired interface. The alarm threshold for CRC errors is 50 and the clear alarm threshold is 20.

Format

crc-alarm enable [ high-threshold high-threshold-value | low-threshold low-threshold-value ]^*

undo crc-alarm enable

Parameters

Parameter	Description	Value
high-threshold high-threshold-value	Specifies the alarm threshold for CRC errors on the AP's wired interface.	The value is an integer that ranges from 1 to 100. The unit is 1/10000. The value of high-threshold-value must be larger than the value of low-threshold-value.
low-threshold low-threshold-value	Specifies the clear alarm threshold for CRC errors on the AP's wired interface.	The value is an integer that ranges from 1 to 100.

Views

AP wired port link profile view

Default Level

2: Configuration level

Usage Guidelines

When the AP detects that the number of CRC errors exceeds the configured upper alarm threshold in a specified period (the time period can be configured using the sample-time command, and is 30s by default), it sends an alarm message to the AC. To prevent the AP from frequently sending alarm messages or alarm clearance messages to the AC, you need to configure the lower threshold for clearing the alarm. The AP sends an alarm clearance message to the AC only when the AP detects that the number of CRC errors is lower than the configured lower threshold.

Example

# Enable the alarm function for CRC errors on the AP's wired interface.

<HUAWEI> system-view
[HUAWEI] wlan 
[HUAWEI-wlan-view] port-link-profile name port-link1
[HUAWEI-wlan-port-link-prof-port-link1] crc-alarm enable