display mac-address pre-authen

Function

The display mac-address pre-authen command displays the current pre-authen MAC address entries in the system.

Format

display mac-address pre-authen [ interface-type interface-number | vlan vlan-id ] ^* [ verbose ]

Parameters

Parameter	Description	Value
vlan vlan-id	Displays MAC address entries in a specified VLAN. If no VLAN is specified, MAC address entries in all VLANs of the device are displayed.	The value is an integer that ranges from 1 to 4094.
interface-type interface-number	Displays MAC address entries on a specified interface. If no interface is specified, MAC address entries on all interfaces of the device are displayed.	-
verbose	Displays detailed information about MAC address entries.	-

Parameter

Description

Value

vlan vlan-id

Displays MAC address entries in a specified VLAN.

If no VLAN is specified, MAC address entries in all VLANs of the device are displayed.

The value is an integer that ranges from 1 to 4094.

interface-type interface-number

Displays MAC address entries on a specified interface.

If no interface is specified, MAC address entries on all interfaces of the device are displayed.

verbose

Displays detailed information about MAC address entries.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

You can run this command to check the existing MAC address entries of the pre-connection type to obtain access information about pre-connection users and locate faults.

Precautions

If there are a lot of pre-authen MAC address entries, you can specify a VLAN or use a pipe operator (|) to filter the output information. Otherwise, the following problems may occur due to excessive output information:

The displayed information is refreshed repeatedly on the terminal screen and the administrator cannot obtain the required information.
The device traverses and retrieves information for a long time, and does not respond to any request.

Example

# Display all pre-authen MAC address entries in the system.

<HUAWEI> display mac-address pre-authen
-------------------------------------------------------------------------------  
MAC Address    VLAN/VSI/BD                          Learned-From        Type        
-------------------------------------------------------------------------------
0000-0000-0100 3000/-/-                              GE0/0/1            pre-authen
0000-0000-0400 3000/-/-                              GE0/0/1            pre-authen
0000-0000-0200 3000/-/-                              GE0/0/1            pre-authen
-------------------------------------------------------------------------------  
Total items displayed = 3

**Table 1** Description of the **display mac-address pre-authen** command output
Item	Description
MAC Address /BD	MAC address of a user to be authenticated.
VLAN/VSI	VLAN/VSI/BD that the outbound interface belongs to.
Learned-From	Interface on which a MAC address is learned.
Type	Type of a MAC address entry.
Total items displayed	Total number of MAC address entries that match the filter condition.