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    • 10. 发明授权
    • Communications apparatus with redundant switching or backpressure mechanism
    • 具有冗余切换或背压机构的通信装置
    • US07706255B1
    • 2010-04-27
    • US11668309
    • 2007-01-29
    • Paul KondratJonathan Bosloy
    • Paul KondratJonathan Bosloy
    • H04J1/16
    • H04L47/10H04L47/11H04L47/263H04L47/32H04L49/3045
    • A communications apparatus includes several functional modules for implementing an application, a pair of switch modules to provide redundant switching capability for transferring frames between the functional modules. Each functional module is connected to each switch module by a frame-based communication link. A redundancy logic unit at each functional module inserts sequence numbers into outgoing frames, replicates the outgoing frames for forwarding to each of said switch modules, and monitors incoming frames from each of the switch modules to select frames for forwarding to an application based on the sequence numbers. In this way, redundancy is maintained at all times, while duplicate frames are eliminated at the receiving module.
    • 通信装置包括用于实现应用的几个功能模块,一对交换模块,以提供用于在功能模块之间传送帧的冗余切换能力。 每个功能模块通过基于帧的通信链路连接到每个交换机模块。 每个功能模块的冗余逻辑单元将序列号插入到出站帧中,复制出站帧以转发到每个所述交换模块,并且监视来自每个交换模块的进入帧,以根据该顺序选择用于转发到应用的帧 数字。 以这种方式,始终保持冗余,而在接收模块处消除重复的帧。