Specifications

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Catalyst 2950 and Catalyst 2955 Switch Command Reference

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Chapter 2 Cisco IOS Commands

clear mac address-table

Use the clear mac address-table privileged EXEC command to delete from the MAC address table a

specific dynamic address, all dynamic addresses on a particular interface, or all dynamic addresses on a

particular VLAN. This command also clears the MAC address notification global counters.

clear mac address-table {dynamic [address mac-addr | interface interface-id | vlan vlan-id] |

notification}

Note Beginning with Release 12.1(11)EA1, the clear mac address-table command replaces the clear

mac-address-table command (with the hyphen). The clear mac-address-table command (with the

hyphen) will become obsolete in a future release.

Syntax Description

Defaults No default is defined.

Command Modes Privileged EXEC

Command History

Examples This example shows how to remove a specific dynamic address from the MAC address table:

Switch# clear mac address-table dynamic address 0008.0070.0007

You can verify that the information was deleted by entering the show mac address-table privileged

EXEC command.

dynamic Delete all dynamic MAC addresses.

dynamic address

mac-addr

(Optional) Delete the specified dynamic MAC address.

dynamic interface

interface-id

(Optional) Delete all dynamic MAC addresses on the specified physical port

or port channel.

dynamic vlan vlan-id (Optional) Delete all dynamic MAC addresses for the specified VLAN. Valid

IDs are from 1 to 4096 when the enhanced software image (EI) is installed

and 1 to 1005 when the standard software image (SI) is installed. Do not

enter leading zeros.

notification Clear the notifications in the history table and reset the counters.

Release Modification

12.1(6)EA2 This command was first introduced.

12.1(9)EA1 The notification keyword was added.

12.1(11)EA1 The clear mac-address-table command was replaced by the clear mac

address-table command.