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1. 发明申请

US20090073874A1 RING-SHAPED REDUNDANT COMMUNICATION PATH CONTROL METHOD 有权
标题翻译：环形冗余通信路径控制方法
公开(公告)号：US20090073874A1
公开(公告)日：2009-03-19
申请号：US12281773
申请日：2007-03-27
申请人： Masahiro Maruyoshi , Muneyoshi Suzuki , Kunio Hato , Katsuya Minami
发明人： Masahiro Maruyoshi , Muneyoshi Suzuki , Kunio Hato , Katsuya Minami
IPC分类号： H04L12/24
CPC分类号： H04L12/437 , H04L12/40182 , H04L43/0811
摘要： In a ring redundant communication path control method, each of transfer apparatuses periodically transmits an inspection frame for inspecting a communication path, detects a failure of the communication path when the inspection frame is not received for a fixed time, transmits a non-arrival notification frame for notifying that the inspection frame has not arrived yet, and detects a failure of the communication path when the non-arrival notification frame is received. Each of the transfer apparatuses closes, when a failure is detection, a port in which the failure is detected, transmits an open command frame for commanding to open a normally closed port from the other port other than the closed port, transfers an open command frame when the open command frame is received, and opens the normally closed port when the other port other than the closed port in which the failure is detected, the port in which the open command frame is detected, or the other port configuring a ring redundant communication path same as that of the port is the normally closed port.
摘要翻译：在环形冗余通信路径控制方法中，每个传送装置周期性地发送用于检查通信路径的检查帧，当固定时间未接收到检查帧时检测通信路径的故障，发送不到达通知帧用于通知检查帧尚未到达，并且当接收到未到达通知帧时检测通信路径的故障。每个传送装置关闭当检测到故障时检测到故障的端口，发送用于命令从除了关闭端口之外的另一端口打开常闭端口的打开命令帧，将打开的命令帧当接收到开放命令帧时，当检测到故障的封闭端口以外的其他端口，检测到开放命令帧的端口或配置环形冗余通信的其他端口时，打开常闭端口与端口相同的路径是常闭端口。

2. 发明授权

US07961596B2 Ring-shaped redundant communication path control method 有权
标题翻译：环形冗余通信路径控制方法
公开(公告)号：US07961596B2
公开(公告)日：2011-06-14
申请号：US12281773
申请日：2007-03-27
申请人： Masahiro Maruyoshi , Muneyoshi Suzuki , Kunio Hato , Katsuya Minami
发明人： Masahiro Maruyoshi , Muneyoshi Suzuki , Kunio Hato , Katsuya Minami
IPC分类号： H04J3/14
CPC分类号： H04L12/437 , H04L12/40182 , H04L43/0811
摘要： In a ring redundant communication path control method, each of transfer apparatuses periodically transmits an inspection frame for inspecting a communication path, detects a failure of the communication path when the inspection frame is not received for a fixed time, transmits a non-arrival notification frame for notifying that the inspection frame has not arrived yet, and detects a failure of the communication path when the non-arrival notification frame is received. Each of the transfer apparatuses closes, when a failure is detection, a port in which the failure is detected, transmits an open command frame for commanding to open a normally closed port from the other port other than the closed port, transfers an open command frame when the open command frame is received, and opens the normally closed port when the other port other than the closed port in which the failure is detected, the port in which the open command frame is detected, or the other port configuring a ring redundant communication path same as that of the port is the normally closed port.
摘要翻译：在环形冗余通信路径控制方法中，每个传送装置周期性地发送用于检查通信路径的检查帧，当固定时间未接收到检查帧时检测通信路径的故障，发送不到达通知帧用于通知检查帧尚未到达，并且当接收到未到达通知帧时检测通信路径的故障。每个传送装置关闭当检测到故障时检测到故障的端口，发送用于命令从除了关闭端口之外的其他端口打开常闭端口的打开命令帧，将打开的命令帧当接收到开放命令帧时，当检测到故障的封闭端口以外的其他端口，检测到开放命令帧的端口或配置环形冗余通信的其他端口时，打开常闭端口与端口相同的路径是常闭端口。

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