In the Catalyst switch architecture, when routing, switching, or ACL tables are built, the collected information is stored in high-speed table memory, which allows lookups to be performed using efficient search algorithms. The two types of tables are Content Addressable Memory (CAM) and Ternary Content Addressable Memory (TCAM).
CAM uses a key to perform a table lookup. For example, the destination MAC address could be used as the key for a Layer 2 table lookup, which is based on an exact match made on Binary operation (i.e., a 0 or a 1 value). The key is fed into . . .
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