Context switched route lookup key engine
US7856510B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2008 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | May 15, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/742
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A key engine that performs route lookups for a plurality of keys may include a data processing portion configured to process one data item at a time and to request data when needed. A buffer may be configured to store a partial result from the data processing portion. A controller may be configured to load the partial result from the data processing portion into the buffer. The controller also may be configured to input another data item into the data processing portion for processing while requested data is obtained for a prior data item. A number of these key engines may be used by a routing unit to perform a large number of route lookups at the same time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.