whitelist session-car dhcp aging-time

Function

The whitelist session-car dhcp aging-time command configures an aging time for a whitelist involved in CAR for whitelisted DHCP sessions.

The undo whitelist session-car dhcp aging-time command restores the default aging time for a whitelist involved in CAR for whitelisted DHCP sessions.

The default aging time of a whitelist involved in CAR for whitelisted DHCP sessions is 30 minutes.

Format

whitelist session-car dhcp aging-time aging-time-value

undo whitelist session-car dhcp aging-time [ aging-time-value ]

Parameters

Parameter	Description	Value
aging-time-value	Specifies an aging time for a whitelist involved in CAR for whitelisted DHCP sessions.	The value is an integer ranging from 1 to 1440, in minutes. The default value is 30.

Parameter

Description

Value

aging-time-value

Specifies an aging time for a whitelist involved in CAR for whitelisted DHCP sessions.

The value is an integer ranging from 1 to 1440, in minutes. The default value is 30.

Views

System view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
dhcp	write

Usage Guidelines

Usage Scenario

CAR for whitelisted DHCP sessions is enabled by default. A device generates whitelists based on information in DHCP packets from different DHCP servers to isolate the packets. After a whitelist is generated, if the device does not receive packets from the DHCP server to which the whitelist belongs within 30 minutes, it ages out the whitelist by default. To adjust the aging time of a whitelist involved in CAR for whitelisted DHCP sessions, run the whitelist session-car dhcp aging-time command.

Example

# Set an aging time for a whitelist involved in CAR for whitelisted DHCP sessions to 60 minutes.

<HUAWEI> system-view
[~HUAWEI] whitelist session-car dhcp aging-time 60