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:
Mar. 20, 2001
Filed:
Sep. 11, 1997
Thomas A. Lemaire, Acton, MA (US);
Paul J. Giacobbe, Townsend, MA (US);
John A. Flanders, Ashland, MA (US);
David Lipschutz, Lexington, MA (US);
Leonard Schwartz, Bedford, MA (US);
David C. Ready, Westwood, MA (US);
William D. Townsend, Groton, MA (US);
3Com Corporation, Santa Clara, CA (US);
Abstract
Quality of Service (“QoS”) variables for predetermined protocol Type data units are stored in a cache memory. For data units that are associated with a flow, thirteen bytes selected out of the Internet Protocol (“IP”) header are employed as at least a portion of a key to perform a cache lookup to obtain at least one Quality of Service variable from the cache. Both routing and QoS information may be stored in the cache for retrieval upon a single lookup operation.