Methods and apparatus for arbitrating output port contention in a switch having virtual output queuing
US6667984B1 · kind B1 · utility
76Cited by
18References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1999 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | May 14, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5679
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A dual round robin arbitration technique for a switch in which input ports include virtual output queues. A first arbitration selects, for each of the input ports, one cell from among head of line cells of the virtual output queues to generate a first arbitration winning cell. Then, for each of the output ports, a second arbitration selects one cell from among the first arbitration winning cells requesting the output port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.