ATM network available bit rate (ABR) explicit rate flow control system
US6359862B1 · kind B1 · utility
12Cited by
13References
13Claims
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Key dates
| Filing date | Nov 25, 1997 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Nov 25, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5681
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of flow control for Available Bit Rate (ABR) sources in an Asynchronous Transfer Mode (ATM) network is implemented. An effective rate for the source is determined by an ATM switch based on a critically damped second order system. The effective rate is damped toward a share value that is based on the source queue length, a target queue length, and the actual cell rates of the connected ABR sources sending traffic through the ATM switch. The resulting feedback loop ensures that the source queue length will not exceed the target queue length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.