whitelist session-car dhcp-server disable

Function

The whitelist session-car dhcp-server disable command disables the DHCPv4 session CAR function.

The undo whitelist session-car dhcp-server disable command enables the DHCPv4 session CAR function.

By default, the DHCPv4 session CAR function is enabled.

This command is supported only on the NetEngine 8000 F1A.

Format

whitelist session-car dhcp-server disable

undo whitelist session-car dhcp-server disable

Parameters

None

Views

System view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
dhcp	write

Usage Guidelines

Usage Scenario

The DHCPv4 session CAR function is enabled by default. It isolates packet channels between DHCPv4 sessions, preventing packets over different DHCPv4 sessions from preempting bandwidth resources. To disable this function on a device, run the whitelist session-car dhcp-server disable command. DHCPv4 packets received by this device will then be sent directly through the DHCPv4-specific CPCAR channel. If the device receives a large number of DHCPv4 packets, packets from different DHCPv4 sessions preempt bandwidth resources. Therefore, disabling this function is not usually recommended.

Precautions

This command is supported only on the admin VS.

Example

# Disable the DHCPv4 session CAR function.

<HUAWEI> system-view
[~HUAWEI] whitelist session-car dhcp-server disable