crc-error packet-error-ratio algorithm-parameter (interface view)

Function

The crc-error packet-error-ratio algorithm-parameter command configures the parameters used in the algorithm to calculate CRC error packet ratio.

The crc-error packet-error-ratio algorithm-parameter realtime-factor command specifies the number of the template for factors affecting the algorithm used to calculate the CRC error packet ratio.

The undo crc-error packet-error-ratio algorithm-parameter command restores the default parameters used in the algorithm to calculate CRC error packet ratio.

By default, the default values of the sample window factors for the parameters sample-window-factor, child-window-max-number, child-window-alarm-number, child-window-resume-number, template-number are 50, 50, 5, 30, and 5, respectively.

Format

crc-error packet-error-ratio algorithm-parameter sample-window-factor child-window-max-number child-window-alarm-number child-window-resume-number

crc-error packet-error-ratio algorithm-parameter realtime-factor template-number

undo crc-error packet-error-ratio algorithm-parameter

undo crc-error packet-error-ratio algorithm-parameter realtime-factor

Parameters

Parameter	Description	Value
sample-window-factor	Sample window factor.	The value is an integer in the range 10 to 100. By default, the value is 50.
child-window-max-number	Maximum number of child windows.	The value is an integer in the range 10 to 100. By default, the value is 50.
child-window-alarm-number	Minimum number of child windows to generate an alarm.	The value is an integer in the range 1 to 100. By default, the value is 5.
child-window-resume-number	Minimum number of child windows to clear an alarm.	The value is an integer in the range 1 to 100. By default, the value is 30.
realtime-factor template-number	Number of the template for factors affecting the algorithm used to calculate the CRC error packet ratio.	The value is an integer ranging from 0 to 10. The default value is 5.

Views

100GE interface view, 10G LAN interface view, 10G WAN 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
interface-mgr	write

Usage Guidelines

Usage Scenario

After the detection threshold for the CRC packet error ratio alarm is configured, this command can be used to change the four key parameters in the detection algorithm: sample window factor, maximum number of child windows, minimal number of child windows for alarm generating, and number of the template for affecting factors.

Note that modifying the preceding parameters directly affects the detection algorithm of the CRC packet error ratio alarm. Before running this command, ensure that these parameters are confirmed by Huawei engineers.

Configuration Impact

The crc-error packet-error-ratio algorithm-parameter command should be used under the guidance of Huawei technical support personnel.

The crc-error packet-error-ratio algorithm-parameter realtime-factor command does not support low-speed interface.

Precautions

The trap-threshold crc-error packet-error-ratio and crc-error packet-error-ratio algorithm-parameter commands must be run before the crc-error packet-error-ratio algorithm-parameter realtime-factor command is configured.
If the undo trap-threshold crc-error packet-error-ratio command is run to cancel the CRC error packet rate detection function, the crc-error packet-error-ratio algorithm-parameter and crc-error packet-error-ratio algorithm-parameter realtime-factor commands are also canceled.
It is recommended that you use the default parameter settings when running the crc-error packet-error-ratio algorithm-parameter realtime-factor command.

Example

# Configure the parameters used in the algorithm to calculate CRC error packet ratio.

<HUAWEI> system-view
[~HUAWEI] interface GigabitEthernet 0/1/0
[*HUAWEI-GigabitEthernet0/1/0] trap-threshold crc-error packet-error-ratio alarm-threshold 1 3 resume-threshold 1 4 trigger-lsp
[*HUAWEI-GigabitEthernet0/1/0] crc-error packet-error-ratio algorithm-parameter 50 50 5 20

# Specify the number of the template for factors affecting the algorithm used to calculate the CRC error packet ratio as 5.

<HUAWEI> system-view
[~HUAWEI] interface GigabitEthernet 0/1/0
[*HUAWEI-GigabitEthernet0/1/0] trap-threshold crc-error packet-error-ratio alarm-threshold 1 3 resume-threshold 1 4 trigger-lsp
[*HUAWEI-GigabitEthernet0/1/0] crc-error packet-error-ratio algorithm-parameter 50 50 5 20
[*HUAWEI-GigabitEthernet0/1/0] crc-error packet-error-ratio algorithm-parameter realtime-factor 5