Because the MAC address is NOT at the switch, it is at the MANAGEMENT INTERFACE of the switch (usually virtual vlan1, but it can also be a physical management port), and until you specifically address this interface, there is no particular reason to expect packets from it. The exceptions are the work of protocols like STP or IGMP, when the volens-nolens switch will have to create a virtual bridge and send packets from it, although the mac-address of the bridge is usually generated randomly, and not taken from the control interface. Remini
