A CDE Definition
don't care bit
See content-addressable memory.
Also known as "associative storage," content-addressable memory is a chip that provides fast table lookups, most notably in network routers and switches. For example, Internet routers search a lookup table millions of times per second to find the appropriate port to output packets to. When a set of search data is presented to content-addressable memory, the memory hardware delivers the results in one clock cycle.
Content-addressable memory (CAM) is constructed of SRAM cells (see static RAM) but is considerably more expensive and holds much less data than regular SRAM chips. See routing protocol, router, wild card and table lookup.
Direct Lookup Tables
Tables May Require a Lot of Comparing
Binary CAM Vs. Ternary CAM
Before/After Your Search Term
|domain tasting||don't track|
|domain warehousing||donating old equipment|
|dome switch keyboard||Donut|
Terms By Topic
Click any of the following categories for a list of fundamental terms.