Method and apparatus for TCAM based look-up
US9269439B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2013 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Mar 18, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/90339
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Aspects of the disclosure provide an electronic device that includes an exact match engine, a ternary content addressable memory (TCAM) engine, a search key generator and an output module. The exact match engine is configured to store a first set of entries. The TCAM engine is configured to store a second set of entries including at least some entries that are different from entries of the first set of entries. The search key generator is configured to generate a search key and provide the search key to the exact match engine and to the TCAM engine. The output module is configured to select one of a first output from the exact match engine and a second output from the TCAM engine in response to a signal that indicates whether the search key exactly matches one of the first set of entries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.