hostcar logging

Function

The hostcar logging command configures a device to generate a log when the number of bytes discarded by host CAR within a specified period reaches the specified threshold.

The undo hostcar logging command restores the default configuration.

The http-hostcar logging command configures an interval at which the device counts the number of bytes of discarded CPU-destined web packets and a log threshold for the number of these discarded bytes.

The undo http-hostcar logging command restores the default configuration.

The vlan-host-car logging command configures an interval at which the device counts the number of bytes of discarded CPU-destined packets controlled by VLAN-Host-CAR and a log threshold for the number of these discarded bytes.

The undo vlan-host-car logging command restores the default configuration.

By default, a device generates a log when the number of discarded bytes reaches 30000 within five minutes.

This command is supported only on the NetEngine 8000 F1A.

Format

{ hostcar | http-hostcar | vlan-host-car } logging { discard-threshold threshold-value | interval interval-value } ^*

undo { hostcar | http-hostcar | vlan-host-car } logging { discard-threshold | interval } ^*

Parameters

Parameter	Description	Value
discard-threshold threshold-value	Specifies a log threshold for the number of discarded bytes.	The value is an integer ranging from 1 to 4294967295, in bytes. The default value is 30000 bytes.
interval interval-value	Specifies the interval at which a device counts the number of bytes discarded by host CAR.	The value is an integer ranging from 1 to 4294967295, in minutes. The default value is five minutes.

Parameter

Description

Value

discard-threshold threshold-value

Specifies a log threshold for the number of discarded bytes.

The value is an integer ranging from 1 to 4294967295, in bytes. The default value is 30000 bytes.

interval interval-value

Specifies the interval at which a device counts the number of bytes discarded by host CAR.

The value is an integer ranging from 1 to 4294967295, in minutes. The default value is five minutes.

Views

Slot view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
soc	write

Usage Guidelines

Usage Scenario

User-side packets to be sent to the CPU may be discarded due to excessive burst traffic or bandwidth restrictions. To configure a device to generate a log when the number of bytes discarded by host CAR within a specified period reaches the specified threshold, run the hostcar logging command.

If you want to configure or modify the interval at which the device counts the number of bytes of discarded CPU-destined web packets and the log threshold for the number of these discarded bytes, run the http-hostcar logging command. By default, the device counts the number of bytes of discarded CPU-destined web packets at an interval of 5 minutes and generates a log when the device discards 30,000 bytes. The log records information about users whose packets are discarded, facilitating fault location. The user information includes user MAC addresses, inner VLAN IDs, outer VLAN IDs, CAR IDs, slot IDs, subcard IDs, port numbers, and option 82 information.

If you want to configure or modify the interval at which the device counts the number of bytes of discarded CPU-destined packets controlled by VLAN-Host-CAR and the log threshold for the number of these discarded bytes, run the vlan-host-car logging command. By default, the device counts the number of bytes of discarded CPU-destined packets controlled by VLAN-Host-CAR at an interval of 5 minutes and generates a log when the device discards 30,000 bytes. The log records information about users whose packets are discarded, facilitating fault location. The user information includes user MAC addresses, inner VLAN IDs, outer VLAN IDs, CAR IDs, slot IDs, subcard IDs, port numbers, and option 82 information.

Precautions

In VS mode, this command is supported only by the admin VS.

Example

# Configure the interval at which the device counts the number of bytes of discarded CPU-destined web packets to 10 minutes and the log threshold for the number of these discarded bytes to 60,000 bytes for slot 1.

<HUAWEI> system-view
[~HUAWEI] slot 1
[*HUAWEI-slot-1] http-hostcar logging interval 10 discard-threshold 60000

# Configure the interval at which the device counts the number of bytes of discarded CPU-destined packets controlled by VLAN-Host-CAR to 15 minutes and the log threshold for the number of these discarded bytes to 2048 bytes for slot 1.

<HUAWEI> system-view
[~HUAWEI] slot 1
[*HUAWEI-slot-1] vlan-host-car logging interval 15 discard-threshold 2048