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:
Jun. 26, 2001
Filed:
Mar. 22, 1999
David A. Skirmont, Redwood City, CA (US);
Pluris, Inc., Cupertino, CA (US);
Abstract
A method optimizes performance in a data network including a plurality of ingress ports and output queues. Ingress rates of a plurality of flows are monitored, where each flow includes a sequence of packets passing from an ingress port to an output queue and each flow has a profile related to flow characteristics. Each packet is marked with a marking based on criteria including the ingress flow rate and the flow profile. A drop probability of each packet is adjusted at an output queue according to a value of a drop function taken as a function of a queue size. The drop function is selected according to the marking on the packet. The drop functions are zero for queue sizes less than a lower threshold range and positive for queue sizes greater than the lower threshold range. By selecting drop functions according to ingress flow rate measurements and flow profiles, the data network can be optimized for overall system performance.