Method and apparatus for preventing undesirable packet download with pending read/write operations in data packet processing
US7058065B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 7, 2001 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Oct 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/205
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A logic system for resolving port contentions associated with memory-access requests in data packet routing is provided. The logic system comprises a determination logic for assessing and reporting port status of busy or not busy, a command mechanism for issuing commands contingent on determination results and a staged buffer memory for holding pending requests waiting for permission to access the memory. A single request at the head of the buffer memory is considered for port access whereupon if a port is determined to be busy, the command logic issues appropriate commands to units responsible for downloading packets from the memory and for sending new memory-access requests.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.