Packet filtering method
US6272133A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1999 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | May 20, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/2441
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of filtering packets having a class. The method includes the steps of accessing a table comprised of entries that include an indication to which class a given entry applies. Then there is the step of searching the entries until an entry whose class indication corresponds to a current class of the packet. Next there is the step of forwarding a frame associated with the entry whose class indication corresponds to the class of the packet. A data communication apparatus. The apparatus includes a mechanism for routing or switching packets. The apparatus includes a memory having information for routing or switching the packets. The apparatus includes a mechanism for compaction of information in the memory which removes redundancies in the information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.