公开(公告)号：DE602006008029D1

公开(公告)日：2009-09-03

申请号：DE602006008029

申请日：2006-10-16

Applicant: IBM

Inventor： CONDORELLI VINCENZO ,  DEWKETT THOMAS ,  HOCKER MICHAEL ,  VISEGRADY TAMAS

IPC: G06F11/16

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.

公开(公告)号：AT437401T

公开(公告)日：2009-08-15

申请号：AT06819082

申请日：2006-10-16

Applicant: IBM

Inventor： CONDORELLI VINCENZO ,  DEWKETT THOMAS ,  HOCKER MICHAEL ,  VISEGRADY TAMAS

IPC: G06F11/16

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.