# MAC Notification

Port > Configure > MAC Notification

This dialog box displays the following data:

- Learnt Notification Enable (cmnMacAddrLearntEnable)

- Remove Notification Enable (cmnMacAddrRemovedEnable)

The following list specifies buttons in this dialog box, as well as their function:

- Click OK to continue.

- Click Apply to save the changes in the dialog box.

- Click Cancel to close the dialog box.

- Click Refresh to update the contents of the dialog box.

- Click Print to print the contents of the dialog box.

- Click Help to access online help.

Learnt Notification Enable (cmnMacAddrLearntEnable)

When the value of this object is "true(1)", this interface sends a cmnMacChangedNotification when it learns a new MAC address. This object has no effect when the value of the cmnGlobalFeatureEnabled object is "false(2)".

Remove Notification Status (cmnMacAddrRemovedEnable)

When the value of this object is "true(1)", this interface sends a cmnMacChangedNotification when a MAC address this interface previously learned is removed from the forwarding table. This object has no effect when the value of the cmnGlobalFeatureEnabled object is "false(2)".