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1. 发明授权

US4949340A Redundant repeater 失效
标题翻译：冗余中继器
公开(公告)号：US4949340A
公开(公告)日：1990-08-14
申请号：US222148
申请日：1988-07-21
申请人： Mark L. Smith , Joseph J. Nicosia , Daniel A. Boudreau , Leo A. Goyette
发明人： Mark L. Smith , Joseph J. Nicosia , Daniel A. Boudreau , Leo A. Goyette
IPC分类号： G06F11/00 , G06F11/20 , H04B1/74 , H04L12/46
CPC分类号： H04L12/46 , H04B1/74 , G06F11/0763
摘要： A redundant repeater connected between two transmission mediums that can operate in a repeat state where packets are repeated between the mediums, and a standby state where no packets are repeated and where the repeater determines whether packets are being properly repeated between the transmission mediums by another device. If the repeater determines that packets are being independently repeated it remains in the standby state, and will attempt to leave the standby state and return to the repeat state only if it determines that packets on one medium are not being repeated to the second medium. Two repeaters can be redundantly connected across the same transmission mediums with one operating in repeat state and the other in standby. If one repeater fails, the other will begin repeating all received packets. The repeater determines whether packets are being properly repeated by detecting overlapping or non-overlapping packets between its two transmission mediums.
摘要翻译：连接在可以在介质之间重复分组的重复状态的操作的两个传输介质之间的冗余中继器和不重复分组的待机状态，以及中继器确定分组在另一设备之间在传输介质之间是否被正确重复的情况。如果中继器确定分组被独立地重复，则它保持在待机状态，并且将尝试离开备用状态，并且仅当确定在一个介质上的分组不被重复到第二媒体时才返回到重复状态。两个中继器可以跨相同的传输介质进行冗余连接，一个操作在重复状态，另一个在待机状态。如果一个中继器发生故障，另一个中继器将开始重复所有接收到的数据包。中继器通过检测其两个传输介质之间的重叠或不重叠的分组来确定分组是否被正确地重复。

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