Flow and congestion control in packet switched networks
Patent 6061330 Issued on May 9, 2000. Estimated Expiration Date: 
September 15, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 15, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesLink-by-link congestion control for packet transmission systems Method and apparatus for backward explicit congestion notification (BECN) in an ATM network Flow control system for packet switches Event-driven cell scheduler and method for supporting multiple service categories in a communication network Patent #: 5793747 InventorAssigneeApplicationNo. 153738 filed on 09/15/1998US Classes:370/229, DATA FLOW CONGESTION PREVENTION OR CONTROL370/230Control of data admission to the networkExaminersPrimary: Horabik, MichaelAssistant: Jones, Prenell Attorney, Agent or FirmInternational ClassG01R 031/08Foreign Application Priority Data1996-03-15 SEAbstractA control system in an ATM system controls flows of data cells and flow control management cells from a number of sources to a destination over connections passing a network element. The flow control management cells are returned from the destination via the network element to their respective sources. The network element is exposed to congestion due to contention between the connections, that necessitates queuing of the connections. The flow control management cells have an explicit rate field for an explicit rate value used to limit a source maximum allowed cell rate to a specific value. An operating function uses deviations from an available rate value for lower priority cells and from a queue length reference forming a desirable queue length, to calculate a modified explicit rate value as a function of these deviations. This modified explicit rate value is introduced into the explicit rate field of the backward flow control management cells.Other References
Field of SearchFlow control of data transmission through a networkIncluding signaling between network elements End-to-end flow control Control of data admission to the network Based on data flow rate measurement Measurement of the peak data flow rate Measurement of the average data flow rate Determination of communication parameters Measurement of flow rate of messages having an address header | |
