Mac Address-Table Notification - Cisco Catalyst 2950 Command Reference Manual

Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands

mac address-table notification

Use the mac address-table notification global configuration command to enable the MAC notification
feature and to configure the notification-trap interval or history table. Use the no form of this command
to disable this feature.
Beginning with Cisco IOS Release 12.1(11)EA1, the mac address-table notification command replaces
Note
the mac-address-table notification command (with the hyphen).
Syntax Description history-size size
interval interval
Defaults The MAC notification feature is disabled.
The default trap-interval value is 1 second.
The default number of entries in the history table is 1.
Command Modes
Global configuration
Command History Release
12.1(6)EA2
12.1(11)EA1
Usage Guidelines
The MAC address notification feature sends Simple Network Management Protocol (SNMP) traps to the
network management system (NMS) whenever a MAC address is added or deleted from the forwarding
tables. MAC notifications are generated only for dynamic and secure MAC addresses. Events are not
generated for self addresses, multicast addresses, or other static addresses.
When you configure the history-size option, the existing MAC address history table is deleted, and a
new table is created.
You enable the MAC address notification feature by using the mac address-table notification
command. You must also enable MAC address notification traps on an interface by using the snmp trap
mac-notification interface configuration command, and configure the switch to send MAC address traps
to the NMS by using the snmp-server enable traps mac-notification global configuration command.
OL-10102-01
mac address-table notification [history-size size | interval interval]
no mac address-table notification [history-size size | interval interval]
(Optional) Configures the maximum number of entries in the MAC
notification history table. The range is 0 to 500.
(Optional) Configures the notification-trap interval in seconds. The range is
0 to 2147483647. The switch sends the notification traps when this amount
of time has elapsed.
Modification
This command was introduced.
The mac-address-table notification command was replaced by the mac
address-table notification command.
Catalyst 2950 and Catalyst 2955 Switch Command Reference
mac address-table notification
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