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    • 3. 发明申请
    • Network redundancy method and middle switch apparatus
    • 网络冗余方法和中间交换机
    • US20080068985A1
    • 2008-03-20
    • US11878781
    • 2007-07-26
    • Hironori Mieno
    • Hironori Mieno
    • H04L12/24
    • H04L12/66
    • Each of an upper switch apparatus and lower switch apparatuses is connected to ports of a same port number of a pair of middle switch apparatuses by setting link aggregation, the pair of the middle switches are connected to each other via redundancy ports. When failure occurs at a port, connected to the lower switch apparatus, of one middles switch apparatus of the pair, the one middle switch apparatus adds input port information to a frame addressed to the failed port to transfer the frame to another middle switch apparatus of the pair from the redundancy port, and the another middle switch apparatus receives the frame from the redundancy port and transfers the frame in accordance with the input port information added to the frame.
    • 上开关装置和下开关装置通过设置链路聚合连接到一对中间交换机装置的相同端口号的端口,一对中间交换机通过冗余端口相互连接。 当一个中间开关装置的一个中间开关装置在连接到下部开关装置的端口处发生故障时,将输入端口信息添加到寻址到故障端口的帧,以将帧传送到另一个中间开关装置 来自冗余端口的一对,另一个中间交换设备从冗余端口接收帧,并根据添加到该帧的输入端口信息传送该帧。