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:
Jul. 18, 2006
Filed:
Mar. 21, 2002
Whay S. Lee, Newark, CA (US);
Nisha Talagala, Fremont, CA (US);
Fay Chong, Jr., Cupertino, CA (US);
Chia Y. Wu, Newark, CA (US);
Randall D. Rettberg, Concord, MA (US);
Whay S. Lee, Newark, CA (US);
Nisha Talagala, Fremont, CA (US);
Fay Chong, Jr., Cupertino, CA (US);
Chia Y. Wu, Newark, CA (US);
Randall D. Rettberg, Concord, MA (US);
Sun Microsystems, Inc., Santa Clara, CA (US);
Abstract
Systems and methods for routing messages in an interconnection fabric are provided. The fabric includes a plurality of nodes, each node having, for example, four ports coupled to adjacent nodes in the fabric. A source node initiating a message in the fabric can transmit the message out of one of its four ports. Between a source node and a destination node, there are at least four independent paths which may be taken, depending on the output port from the source node. However, the precise path is not expressly delineated in the message. Instead, the message contains the address of the destination node, the address of the originating node, and a target region for the message. Each intermediate node is configured to receive a message via one of its four ports, and then select an appropriate output port based on the location of the port which received the message combined with the address and target information contained in the message. By providing a system by which four independent paths can be taken by a message, at least three intermediate nodes can fail in the fabric before the message is prevented from reaching the destination node.