Packet switch employing dynamic transfer of data packet from central shared queue path to cross-point switching matrix path
US6606326B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1999 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Jul 2, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/90
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A central queue-based packet switch contains multiple input ports and multiple output ports coupled by a central queue path and a bypass path. The central queue has only shared memory and processing dynamically switches from transfer of message portions across the central queue path to the bypass path whenever a next message portion is identified by an output port as a critical portion. Upon transfer of message forwarding to the bypass path, subsequent message portions are forwarded across the bypass path unless the output port signals for transfer of the message portions back through the central queue path. Dynamic switching of message transfer from the central queue path to the bypass path is accomplished irrespective of whether contention exists for the output port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.