Method and apparatus to detect lost buffers with a descriptor based queue
US6532503B1 · kind B1 · utility
10Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2000 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Feb 18, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/90
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A main data memory is provided in a network device and includes a plurality of buffers for storing data packets. A plurality of descriptors, or pointers, point to the individual buffers. A status of the descriptors is stored in a descriptor reference memory. The status information includes whether the descriptors are in an active or free state, and an indication of copies of the descriptors in the transmit queues. A descriptor free pool includes a list of the descriptors in the free state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.