High Quality Content by WIKIPEDIA articles! Content Addressable Memory (CAM) table is a common term usually referring to the Dynamic Content Addressable Memory on an Ethernet switch.A Ethernet switch's role is to copy bits (referred to as Ethernet frames) from one port to another, quickly, at layer two of the OSI model. The presence of a CAM table is one attribute that separates a switch from a hub. Without a functional CAM table, all frames received by a network switch would be echoed back out to all other switch ports, much like an Ethernet hub. CAM tables are often the target of layer 2 network attacks in a local area network to set up man-in-the-middle attacks.A layer 2 Ethernet switch's role is to copy bits (formatted in frames) from one port to another, quickly. A hub simply emits a frame received on one port back out to all connected ports. A switch should only emit a frame on the port where the destination network device resides (unicast), unless the frame is for all nodes on the switch (broadcast) or multiple nodes (multicast).

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