Indicates whether this interface is enabled to send
cmnMacChangedNotification when it learns a new MAC address. This
variable has no effect when the value of cmnGlobalFeatureEnabled
object is false(2).
Setting this object to true(1) enables the sending of
cmnMacChangedNotification when this interface learns a
new MAC address.
Setting this object to false(2) disables the sending
of cmnMacChangedNotification when this interface learns
a new MAC address.