The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 1999
Filed:
Mar. 19, 1997
Qin Zheng, Boxborough, MA (US);
Mitsubishi Electric Information Technology Center America, Inc. (ITA), Cambridge, MA (US);
Abstract
In an ATM network, a traffic management system is provided to allow simple nd effective implementation of rate-based available bit rate, or ABR, flow control at ATM switches, with the subject system using an innovative queue length based approach to calculate the cell rate that a source system can use to send cells. In one embodiment, the cell rate is calculated as an exponential function of the cell queue length at a switch, and the rate value is carried back to a source system via resource management, or RM, cells. The exponential rate calculation function provides a large stability region for a network for better flow control performance than other systems, with the subject system being easy to implement in ATM switches.