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Local network, particularly Ethernet network having redundancy properties, and coupling device for such a network

机译：局域网，特别是具有冗余特性的以太网，以及用于这种网络的耦合设备

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摘要

A local network, particularly an Ethernet network having redundancy properties, in which coupling devices (K1, K2, K3) and a redundancy manager (RM) are interconnected in a ring-shaped topology. The redundancy manager opens the ring to create a linear topology if test messages (T11, T12) emitted by the redundancy manager (RM) are received at the other port (P42, P41) within a given period of time, otherwise the redundancy manager (RM) closes the connection. As a so-called redundancy manager observer, at least one of the coupling devices (K3) is configured such that it evaluates messages received at the port (P32) thereof, the port (P32) being connected to the redundancy manager, opens the ring to create a linear topology, and signals an error if more than initial test messages (T11) have been received at this port (P32) and if the status “ring opened” has been indicated by the redundancy manager (RM) in the last-received initial test message (T11), whereby messages are prevented from circulating on the ring.

机译：局域网，特别是具有冗余属性的以太网，其中耦合设备（K 1 ，K 2 ，K 3 ）和冗余管理器（RM）以环形拓扑互连。如果冗余管理器（RM）发出的测试消息（T 11 ，T 12 ）在另一个端口上接收到，则冗余管理器打开环以创建线性拓扑。 P 42 ，P 41 ）在给定的时间段内，否则冗余管理器（RM）关闭连接。作为所谓的冗余管理器观察者，至少配置一个耦合设备（K 3 ），以便评估在其端口（P 32 ）上接收到的消息。，将端口（P 32 ）连接到冗余管理器，打开环以创建线性拓扑，如果发出的错误超过初始测试消息（T 11 ）已在此端口（P 32 ）上接收到，并且如果冗余管理器（RM）在最后接收的初始测试消息（T 11 ），从而防止消息在环上传播。 展开▼

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公开/公告号US7385919B2

专利类型

公开/公告日2008-06-10

原文格式PDF

申请/专利权人 MICHAEL KOESTNER;HARALD THRUM;
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申请/专利号US20040923118

发明设计人 HARALD THRUM;MICHAEL KOESTNER;
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申请日2004-08-23

分类号G01R31/08;

国家 US

入库时间 2022-08-21 20:09:31

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