Cisco Catalyst 4500 Series Configuration Manual page 485

Chapter 2
Command Modes Global configuration mode
Command History Release
12.2(31)SG
12.2(52)SG
Usage Guidelines You can enable the MAC change notification feature using the mac-address-table notification change
command. If you do this, you must also enable MAC notification traps on an interface using the
snmp trap mac-notification change interface configuration command and configure the switch to send
MAC change traps to the NMS using the snmp-server enable traps mac-notification global
configuration command.
When the history-size option is configured, the existing MAC change history table is deleted, and a new
table is created.
Examples
The following example shows how to set the MAC address notification history table size to 300 entries:
Switch(config)# mac-address-table notification change history-size 300
Switch(config)#
The following example shows how to set the MAC address notification interval time to 1250 seconds:
Switch(config)# mac-address-table notification change interval 1250
Switch(config)#
The following example shows how to enable hardware MAC address learning failure syslog notification:
Switch(config)# mac address-table notification learn-fail
The following example shows how to set the interval of hardware MAC address learning failure syslog
notification to 30 seconds:
Switch(config)# mac address-table notification learn-fail interval 30
Related Commands Command
clear mac-address-table
mac-address-table notification
snmp-server enable traps
snmp trap mac-notification change
Modification
This command was introduced on the Catalyst 4500 series switch.
Support introduced for the learn-fail keyword on Supervisor Engine 6-E and
Catalyst 4900M.
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release XE 3.9.xE and 15.2(5)Ex
Description
Clears the global counter entries from the Layer 2 MAC
address table.
Enables MAC address notification on a switch.
Enables SNMP notifications.
Enables SNMP MAC address notifications.
mac-address-table notification
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