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:
May. 01, 2007
Filed:
Apr. 30, 2001
Gary Goldman, Los Altos, CA (US);
Nitin Garg, San Jose, CA (US);
Man Yip, Sunnyvale, CA (US);
Phong Bui, San Jose, CA (US);
Kent Wendorf, San Jose, CA (US);
Gary Goldman, Los Altos, CA (US);
Nitin Garg, San Jose, CA (US);
Man Yip, Sunnyvale, CA (US);
Phong Bui, San Jose, CA (US);
Kent Wendorf, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method and system for the fair allocation of unused guaranteed bandwidth. Data segments of at least one class of service are received at each of a plurality of ingress line cards. Each class of service has a guaranteed percentage of transmission bandwidth. The system uses a must-serve bit to mark a number of data cells within each class of service. The number of cells marked depends on the guaranteed bandwidth percentage for the particular class of service. The mark is referred to as 'must-serve' since the scheduler must serve the particular class of service to the extent of the marked cells in order to meet the guaranteed bandwidth. The generic switch fabric monitors the cells and the switch CPU reallocates bandwidth so that only the marked cells are provided preferential transmission. Non-marked cells compete equally for excess bandwidth.