Mac Address-Table Notification - Cisco Catalyst 2950 Command Reference Manual
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Chapter 2
Cisco IOS Commands
mac address-table notification
Use the mac address-table notification global configuration command to enable the MAC notification
feature and configure the notification-trap interval or history table. Use the no form of this command to
disable this feature.
Beginning with Release 12.1(11)EA1, the mac address-table notification command replaces the
Note
mac-address-table notification command (with the hyphen). The mac-address-table notification
command (with the hyphen) will become obsolete in a future release.
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.
78-11381-05
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; valid values are 0 to 500.
(Optional) Configures the notification-trap interval in seconds; valid values
are from 0 to 2147483647. The switch sends the notification traps when this
amount of time has elapsed.
Modification
This command was first introduced.
The mac-address-table notification command was replaced by the mac
address-table notification command.
mac address-table notification
Catalyst 2950 Desktop Switch Command Reference
2-87
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