Network switching device and method dividing packets and storing divided packets in shared buffer
US7733889B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 18, 2005 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Nov 4, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/552
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network switching device that prevents its shared buffer from suffering a blocking problem, while achieving a higher memory use efficiency in buffering variable-length packets. Every received packet is divided into one or more fixed-length data blocks and supplied to the buffer. Under the control of a buffer controller, a transmit queue is created to store up to a fixed number of data blocks for each different destination network, and the data blocks written in the buffer are registered with a transmit queue corresponding to a given destination. The linkage between data blocks in each packet, as well as the linkage between packets in each transmit queue, is managed as a linked list structure based on the locations of data blocks in the buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.