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:
Nov. 09, 2010
Filed:
Apr. 21, 2008
Steven L. Scott, Chippewa Falls, WI (US);
Gregory Hubbard, Chippewa Falls, WI (US);
Kelly Marquardt, Chippewa Falls, WI (US);
Roger A. Bethard, Chippewa Falls, WI (US);
Dennis C. Abts, Eleva, WI (US);
Steven L. Scott, Chippewa Falls, WI (US);
Gregory Hubbard, Chippewa Falls, WI (US);
Kelly Marquardt, Chippewa Falls, WI (US);
Roger A. Bethard, Chippewa Falls, WI (US);
Dennis C. Abts, Eleva, WI (US);
Cray Inc., Seattle, WA (US);
Abstract
A system and method for speculative forwarding of packets received by a router, wherein each packet includes phits and wherein one or more phits include a cyclic redundancy code (CRC). A packet is received and phits of the packet are forwarded to router logic. A cyclic redundancy code for the packet is calculated and compared to the packet's cyclic redundancy code. An error is generated if the cyclic redundancy codes don't match. If the cyclic redundancy codes don't match, a phit of the packet is modified to reflect the error, the CRC is corrected and the corrected CRC is forwarded to the router logic along with the phit reflecting the CRC error. At the router logic, a check is made to see if the packet is still within the router logic. If the packet is still within the router logic and there was a CRC error, the packet is discarded. If, however, the packet is no longer within the router logic and there was a CRC error, the packet is modified so that the next router discards the packet.