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:
Apr. 07, 2009
Filed:
Oct. 27, 2005
Vincenzo Condorelli, Poughkeepsie, NY (US);
Thomas J. Dewkett, Staatsburgh, NY (US);
Michael D. Hocker, Staatsburg, NY (US);
Tamas Visegrady, Zurich, CH;
Vincenzo Condorelli, Poughkeepsie, NY (US);
Thomas J. Dewkett, Staatsburgh, NY (US);
Michael D. Hocker, Staatsburg, NY (US);
Tamas Visegrady, Zurich, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
In a communications channel coupled to multiple duplicated subsystems, a method, interposer and program product are provided for verifying integrity of subsystem responses. Within the communications channel, a first checksum is calculated with receipt of a first response from a first subsystem responsive to a common request, and a second checksum is calculated for a second response of a second subsystem received responsive to the common request. The first checksum and the second checksum are compared, and if matching, only one of the first response and the second response is forwarded from the communications channel as the response to the common request, with the other of the first response and the second response being discarded by the communications channel.