Cisco CATALYST 2960 - Power over Ethernet Features; Ability to provide power to connected Cisco pre-standard and IEEE 802.3 af-compliant powered devices from Power over Ethernet (PoE)-capable ports if the switch detects that there is no power on the circuit.; Support for IEEE 802.3 at, (PoE+) that increases the available power that can be drawn by powered devices from 15.4 W per port to 30 W per port (Catalyst 2960-S only); Support for Cisco intelligent power management. The powered device and the switch negotiate through power-negotiation CDP messages for an agreed power-consumption level. The negotiation allows a high-power Cisco powered device, which consumes more than 7 W, to operate at its highest power mode. The powered device first boots up in low-power mode, consumes less than 7 W, and negotiates to obtain enough power to operate in high-power mode. The device changes to high-power mode only when it receives confirmation from the switch.

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Catalyst 2960 Switch Command Reference
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Chapter 2 Catalyst 2960 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}
Syntax Description
Defaults No default is defined.
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 the 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 4094.
notification Clear the notifications in the history table and reset the counters.
Release Modification
12.2(25)FX This command was introduced.
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.
show mac address-table notification Displays the MAC address notification settings for all
interfaces or the specified interface.
snmp trap mac-notification Enables the Simple Network Management Protocol (SNMP)
MAC address notification trap on a specific interface.