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Managing MAC Address Table Security Configurations
User Guide 165
Max Learned
Number
Set the maximum number of MAC addresses in the specific VLAN. It ranges from
0 to 16383.
You can control the available address table space by setting maximum learned
MAC number for VLANs. However, an improper maximum number can cause
unnecessary floods in the network or a waste of address table space. Therefore,
before you set the number limit, please be sure you are familiar with the network
topology and the switch system configuration.
3) Choose the mode that the switch adopts when the maximum number of MAC addresses
in the specified VLAN is exceeded.
Drop Packets with new source MAC addresses in the VLAN will be dropped when the
maximum number of MAC addresses in the specified VLAN is exceeded.
Forward Packets of new source MAC addresses will be forwarded but the addresses will
not be learned when the maximum number of MAC addresses in the specified
VLAN is exceeded.
4) Click Create.
3.2 Using the CLI
3.2.1 Configuring MAC Notification Traps
Follow these steps to configure MAC notification traps:
Step 1 configure
Enter global configuration mode.
Step 2 mac address-table notification global-status {enable | disable}
Enable MAC Notification globally.
enable | disable: Enable or disable MAC Notification globally.
Step 3 mac address-table notification table-full-status
[enable | disable]
(Optional) Enable Table Full Notification.
enable | disable: With Table Full Notification enabled, when address table is full, a notification
will be generated and sent to the management host.
Step 4 mac address-table notification interval
time
Specify the time value of Notification Interval. Notification Interval is the interval at which the
New MAC Learned notifications are continuously sent.
time:
Specify the Notification Interval in seconds between 1to 1000. By default, it is 1 second.
Step 5 interface { fastEthernet
port
| range fastEthernet
port-list
| gigabitEthernet
port
| range
gigabitEthernet
port-list
| ten-gigabitEthernet
port
| ten-range gigabitEthernet
port-list
}
Configure notification traps on the specified port.
port/ port-list:
The number or the list of the Ethernet port that you want to configure
notification traps.
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