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:
Oct. 07, 2008
Filed:
Apr. 24, 2003
Christopher J. Kappler, Waltham, MA (US);
Gregory S. Goss, Dunstable, MA (US);
Andrew T. Hebb, Harvard, MA (US);
Robert T. Olsen, Dublin, CA (US);
Christopher J. Kappler, Waltham, MA (US);
Gregory S. Goss, Dunstable, MA (US);
Andrew T. Hebb, Harvard, MA (US);
Robert T. Olsen, Dublin, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A data communications device interconnected for channelized communication overcomes the problems associated with message traffic starvation on outgoing traffic channels by forming arbitration, or speed groups of logical interfaces and allocating scheduling resources in proportion to the bandwidth attributed to each group relative to the total bandwidth of the device. Incoming messages have a transmission rate based on QOS, content type, or other constraints. A categorizer determines arbitration groups of the outgoing messages based on the transmission rate of the message. The scheduler allocates dequeue requests among the groups according to the proportion allocated to the arbitration group. A dequeue manager drains the outgoing messages from the arbitration groups at a rate in proportion to the total percentage of outgoing transmission bandwidth represented by the group by selecting a message from among the arbitration groups according to the computed proportion.