Packet forwarding apparatus with a flow detection table
US6768738B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 10, 1999 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Sep 10, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5636
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A packet forwarding apparatus provided with a plurality of line interface units, comprises a routing processing unit for referring to a routing table, based on header information of received packet to specify one of output lines to output the received packet, a flow detection unit for referring to an entry table, in which a plurality of entries with flow conditions and control information are registered, to retrieve control information defined by the entry with a flow condition which coincides with that of the header information of the received packet, and a packet forwarding unit for transferring the received packet to one of the line interface units connected to the output line specified by the routing processing unit. The entry table id divided into a plurality of subtables corresponding to the values of flow attributes associated with the received packets and the flow detection unit retrieves the control information from one of said subtables specified by the value of the flow attribute corresponding to the received packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.