Data search apparatus and internetwork relay apparatus using data search apparatus
US6633866B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1999 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Dec 27, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99933
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Header data representing a frame form and a protocol is divided into each two bytes to set a plurality of search sequences, and, for each sequence, an entry comprising the divided two bytes serving as Key Data, a search identifier comprising Group number and Sequence number, and associative data representing the contents of search control is created. The entry is preliminarily registered in a protocol table. Each time when frame data is stored in a frame buffer, a search is performed in the protocol table using 2 bytes as a key positioned at a specific position of the frame data by a protocol analysis portion, and the search in the protocol table is repeated until a search is terminated according to the contents of the associative data read out from the protocol table by the search.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.