Cisco Catalyst 3550

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Catalyst 3550 Multilayer Switch Command Reference
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Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
clear mac address-table
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 Cisco IOS Release 12.1(11)EA1, the clear mac address-table command replaces the
clear mac- address-table command (with the hyphen).
Syntax Description
Command Modes Privileged EXEC
Command History
Examples This example shows how to remove a specific MAC address from the dynamic address table:
Switch# clear mac address-table dynamic address 0008.0070.0007
You can verify that information was deleted by entering the show mac address-table privileged EXEC
command.
Related Commands
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. The
range is 1 to 4096.
notification Clear the notifications in the history table and reset the counters.
Release Modification
12.1(4)EA1 This command was introduced.
12.1(8)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.
Command Description
mac address-table notification Enables the MAC address notification feature.
show mac address-table Displays the MAC address table static and dynamic entries.