Hardware copy assist for data communication switch
US6504842B1 · kind B1 · utility
21Cited by
6References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1998 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Jul 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/3018
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A hardware copy assist for a data communication switch copies packets in a number required to meet multicasting needs. Packets are read from a switch queue and a home mark is retained for the packet at the head of the queue to facilitate multiple reads and to prevent premature overwrites. Copying decisions may be made incidental to the retrieval of outbound headers from a linked list of table entries to minimize overhead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.