发明授权
- 专利标题： Method for verifying responses to messages using a barrier message
- 专利标题（中）： 使用屏障消息来验证对消息的响应的方法
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申请号： US474770申请日： 1995-06-07
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公开(公告)号： US5675579A公开(公告)日： 1997-10-07
- 发明人: William Joel Watson , William Edward Baker , William F. Bruckert , William Patterson Bunton , David J. Garcia , Robert W. Horst , Geoffrey I. Iswandhi , David Joseph Kinkade , David Paul Sonnier
- 申请人： William Joel Watson , William Edward Baker , William F. Bruckert , William Patterson Bunton , David J. Garcia , Robert W. Horst , Geoffrey I. Iswandhi , David Joseph Kinkade , David Paul Sonnier
- 申请人地址： CA Cupertino
- 专利权人： Tandem Computers Incorporated
- 当前专利权人： Tandem Computers Incorporated
- 当前专利权人地址： CA Cupertino
- 主分类号： G06F11/18
- IPC分类号： G06F11/18 ; G01R31/317 ; G01R31/3185 ; G06F1/12 ; G06F9/52 ; G06F11/00 ; G06F11/10 ; G06F11/16 ; G06F11/20 ; G06F11/273 ; G06F12/08 ; G06F12/14 ; G06F12/16 ; G06F13/00 ; H04L12/56 ; H04L29/14 ; H04L1/14
摘要：
A processing system includes a number of communicatively interconnected system elements structured to send and receive data in the form of message packets. Message packets sent to a destination with expectation of response are timed, and if no response is received within an allotted time, a barrier transaction message packet is sent to the destination. The destination is required to provide a barrier transaction response to the barrier transaction packet only after it has responded to, or discarded, all prior received message packets requiring response by the destination. When the source of the barrier transaction message packet receives the barrier transaction response it can be assured that the communication path to the destination is in order, and no prior (late) responses will be forthcoming.
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