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, 2012
Filed:
Jan. 29, 2005
David Sluiter, Superior, CO (US);
David Thomas, Wellington, CO (US);
Mark Buchanan, Fort Collins, CO (US);
Timothy Thompson, Windsor, CO (US);
Christopher Paulson, Fort Collins, CO (US);
David Sluiter, Superior, CO (US);
David Thomas, Wellington, CO (US);
Mark Buchanan, Fort Collins, CO (US);
Timothy Thompson, Windsor, CO (US);
Christopher Paulson, Fort Collins, CO (US);
LSI Corporation, Milpitas, CA (US);
Abstract
A method for discarding perpetually-rejected packets in a fabric-based interconnect having a reliable physical layer is disclosed. A transmitting component keeps a count of the number of negative acknowledgements (NAKs) it receives from the receiving component for packets the transmitting component sends. If the transmitting component receives a number of consecutive NAKs for the same packet that exceeds some pre-determined threshold, the packet is not resent, but is, instead, treated as having been acknowledged, and subsequent packets are allowed to be transmitted. Higher-level processes are then notified of the problem so as to allow the error to be dealt with at a higher level, but without obstructing the flow of packets on the physical layer.