Fast flexible filter processor based architecture for a network device
US6876653B2 · kind B2 · utility
263Cited by
24References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2002 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Aug 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/445
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of filtering data packets in a network device is disclosed. An incoming packet is received from a port and the incoming packet is inspected and packet fields are extracted. The incoming packet is classified based on the extracted packet fields and action instructions are generated. The incoming packet is then modified based on the action instructions. Further, the inspection and extraction includes applying inspection mask windows to any portion of the incoming packet to extract programmable packet fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.