Network Computing is part of the Informa Tech Division of Informa PLC
MAC Address Learning Basics
Get back to basics with this demonstration of how a switch learns MAC addresses. The MAC address table contains information that switches use to forward traffic between ports. In this video, David Bombal uses Cisco's Packet Tracer tool to populate a MAC address table on a layer 2 network switch with no VLANs or configurations other than the default configuration.
In the second video below, he shows you how clearing a MAC address table results in traffic flooding.