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. 22, 1999
Filed:
Jun. 07, 1995
John C Krause, Georgetown, TX (US);
David J Garcia, Los Gatos, CA (US);
Robert W Horst, Saratoga, CA (US);
Geoffrey I Iswandhi, Sunnyvale, CA (US);
David Paul Sonnier, Austin, TX (US);
William Joel Watson, Austin, TX (US);
Linda Ellen Zalzala, Austin, TX (US);
Tandem Computers, Inc., Santa Clara, CA (US);
Abstract
A processing system includes multiple processor units and multiple input/output elements communicatively interconnected by a system area network having a plurality of multi-ported router elements. Communication between the system elements uses message packets that contain, among other things, destination information that identifies the intended recipient of the message packet. That destination information is used, at least in part, for routing message packets from a its source to its intended destination. Deadlocks are eliminated by providing each router with information as to which ports cannot be used for re-transmission of a message packet, depending upon which port is receiving that message packet.