Rate-based congestion control in packet communications networks
US5311513A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1992 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Sep 10, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/568
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A congestion control system for packet communications networks in which access to the network is controlled to prevent such congestion. Packets within the prespecified statistical description of each packet source are marked as high priority ("green" packets) while packets exceeding the pre-specified characteristics are marked with a lower priority ("red" packets). The overall red packet rate is limited to prevent red packet saturation of the network. Packets are marked red for a continuous train of successive red packets. The introduction of red packets into the network is subjected to a degree of hysteresis to provide better interaction with higher layer error recovery protocols. The amount of hysteresis introduced into the red packet marking can be fixed or varied, depending on the statistics of the incoming data packets at the entry point to the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.