发明申请
- 专利标题: Configuration synchronization for redundant processors executing different versions of software
- 专利标题(中): 执行不同版本软件的冗余处理器的配置同步
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申请号: US10723684申请日: 2003-11-25
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公开(公告)号: US20050114846A1公开(公告)日: 2005-05-26
- 发明人: Donald Banks , Praveen Joshi , Seok Koh , John Welder
- 申请人: Donald Banks , Praveen Joshi , Seok Koh , John Welder
- 申请人地址: US CA San Jose
- 专利权人: Cisco Technology, Inc.
- 当前专利权人: Cisco Technology, Inc.
- 当前专利权人地址: US CA San Jose
- 主分类号: G06F9/44
- IPC分类号: G06F9/44 ; G06F9/445 ; G06F9/45 ; H04L12/56
摘要:
Methods and devices are provided for maintaining configuration synchronization when an Active unit and a Standby unit have different versions of a software image. Preferred implementations allow the system to operate in a stateful mode even after the Standby unit has had an image upgrade. Other implementations allow the system to operate in a stateful mode when the Active unit has a higher-level version of the image than the Standby unit.
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