Method and apparatus for controlling traffic queues in network switches
US6496478B1 · kind B1 · utility
10Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1999 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Jul 14, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/901
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network switch includes a transmit queue of packets along with indication (e.g. in respective status words) of the type of each packet and its size. An arbitrator includes a counter which is incremented by the size (e.g. in bytes) of each packet of a first type (e.g. ‘low-loss’) and decremented by a scaled size of each packet of a second type (e.g. ‘normal loss’). If the queue exceeds a set limit, preferably less than the maximum possible size of the queue, packets are discarded if a scaled packet of the second type exceeds the net content of the counter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.