公开(公告)号：US07787451B2

公开(公告)日：2010-08-31

申请号：US11822945

申请日：2007-07-11

申请人： Toshiro Yamauchi

发明人： Toshiro Yamauchi

IPC分类号： H04L12/28

CPC分类号： H04L47/10 ,  H04L47/125 ,  H04L47/34

摘要： If a stored sequence number stored in a sequence number storage unit of a receiver coincides with a sequence number of a first arrival packet among a plurality of packets each having a smallest sequence number out of a plurality of packets stored in a packet reception buffer, then the receiver outputs the first arrival packet and increments the stored sequence number, and abandons the packets having smaller sequence numbers than the stored sequence number stored in the sequence number storage unit out of the plurality of packets stored in the packet reception buffer.

摘要翻译： 如果存储在接收器的序列号存储单元中的存储序列号与分组接收缓冲器中存储的多个分组中具有最小序列号的多个分组中的第一到达分组的序列号一致，则 接收机输出第一到达分组并递增所存储的序列号，并且放弃比存储在分组接收缓冲器中的多个分组中存储的序列号存储单元中存储的序列号小的序列号的分组。

公开(公告)号：US07719956B2

公开(公告)日：2010-05-18

申请号：US11317197

申请日：2005-12-22

申请人： Toshiro Yamauchi

发明人： Toshiro Yamauchi

IPC分类号： H04L12/26

CPC分类号： H04L41/0677 ,  H04L41/0893 ,  H04L41/12 ,  H04L43/0805 ,  H04L43/0811 ,  H04L43/0817 ,  H04L45/22 ,  H04L45/28 ,  H04L49/55 ,  H04L69/40

摘要： In a trunk network, each node, when notified from another node of a change in the state of a group to which external connection ports belong, changes the states of the external connection ports to cause external devices to detect the failure of the transmission route. A port state monitor unit classifies external connection ports into groups in advance and stores the correspondence of the external connection ports and the groups. The port state monitor unit then detects changes in the states of external connection ports. When a change of the state of any external connection port is detected in the port state monitor unit, a group state management unit reports state information that includes the states of groups that correspond to the external connection port to other nodes that make up the trunk network. Upon receiving state information from any other node, the group state management unit, in accordance with the states of groups that are included in the state information, changes the states of external connection ports that belong to these groups.

摘要翻译： 在中继网络中，当从另一节点通知外部连接端口所属的组的状态改变时，每个节点改变外部连接端口的状态，使得外部设备检测到传输路由的故障。 端口状态监视单元提前将外部连接端口分组，并存储外部连接端口和组的对应关系。 端口状态监视器单元检测外部连接端口状态的变化。 当在端口状态监视单元中检测到任何外部连接端口的状态改变时，组状态管理单元将包括与外部连接端口对应的组的状态的状态信息报告给构成中继网络的其他节点 。 在从任何其他节点接收到状态信息时，组状态管理单元根据状态信息中包括的组的状态改变属于这些组的外部连接端口的状态。

公开(公告)号：US07450519B2

公开(公告)日：2008-11-11

申请号：US10952879

申请日：2004-09-30

申请人： Toshiro Yamauchi

发明人： Toshiro Yamauchi

IPC分类号： G01R31/08

CPC分类号： H04L43/00

摘要： Where each of switches opposed to each other detects optical-signal shutoff or optical-signal deterioration on the reception side of its port, the switch brings a link of the port down and outputs an auto-negotiation configuration code, as an LAN signal. Upon receiving the LAN signal transmitted from the switch, a repeating-transmission apparatus transmits the transmitted signal to an auto-negotiation monitor. The auto-negotiation monitor performs code analysis for the transmitted LAN signal. Where the auto-negotiation monitor detects that the transmitted LAN signal is the auto-negotiation configuration code, it notifies a monitor apparatus that “The switch detects a failure and the link is down.”, as an alarm.

摘要翻译： 在彼此相对的每个开关在其端口的接收侧检测到光信号切断或光信号劣化的情况下，交换机将端口的链路降低，并输出自动协商配置码作为LAN信号。 一旦接收到从交换机发送的LAN信号，重复发送装置将发送的信号发送到自动协商监视器。 自动协商监控器对发送的LAN信号执行代码分析。 在自动协商监视器检测到发送的LAN信号是自动协商配置码的情况下，通知监控设备“交换机检测到故障并且链路断开”，作为报警。

公开(公告)号：US20080144535A1

公开(公告)日：2008-06-19

申请号：US11952154

申请日：2007-12-07

申请人： Toshiro YAMAUCHI

发明人： Toshiro YAMAUCHI

IPC分类号： H04L12/28

CPC分类号： H04L12/43 ,  H04L43/0864

摘要： To obtain ring-type network that is capable of sensing a change in the structure of a lower layer network when there is a change, and to obtain a fairness execution program for the ring-type network, which can implement the fairness function in a fine manner even in such case. Each of RPR devices of an RPR network includes a timer, and transmits a periodic transmission request of an LRTT control frame to an LRTT control frame transmitter via an arbitrating part so that the transmitter sends the LRTT control frame to each RPR device regularly. An LRTT control frame receiver receives the returned LRTT control frame, and a round trip propagation time calculator calculates round trip propagation time from a difference between the transmitted time and the received time, and gives the result to a fairness execution part. Thereby, a fine operation of the fairness function is secured.

摘要翻译： 为了获得能够感知下层网络的结构发生变化的环型网络，并且为了获得能够实现公平性功能的环型网络的公平执行程序， 即使在这种情况下也是如此。 RPR网络的每个RPR设备包括定时器，经由仲裁部分向LRTT控制帧发送机发送LRTT控制帧的周期性传输请求，以便发射机定期向每个RPR设备发送LRTT控制帧。 LRTT控制帧接收器接收返回的LRTT控制帧，并且往返传播时间计算器根据传输时间和接收时间之间的差计算往返传播时间，并将结果给予公平执行部分。 由此，能够确保公平功能的良好的动作。

公开(公告)号：US20140244000A1

公开(公告)日：2014-08-28

申请号：US14354761

申请日：2012-07-24

申请人： Toshiro Yamauchi

发明人： Toshiro Yamauchi

IPC分类号： G05B9/03

CPC分类号： G05B9/03 ,  H04L43/0817

摘要： A communication relay apparatus includes, in a redundant manner, a first board that holds first configuration information including latest setting information in a communication service provided while the first board itself is mounted in a given communication relay apparatus, determines its own operation state upon start-up, and changes to the determined operation state, and a second board that holds second configuration information including latest setting information in a communication service provided while the second board itself is mounted in a given communication relay apparatus, determines its own operation state upon start-up, and changes to the determined operation state, in which each of the first and second boards determines, when neither of the first and second boards is faulty and they are simultaneously started up, the own operation state based on the first and second configuration information.

摘要翻译： 通信中继装置以冗余的方式包括第一板，其在第一板本身安装在给定的通信中继装置中的同时提供包括最新设置信息的第一配置信息，确定其自身的运行状态， 并且改变为所确定的操作状态;以及第二板，其在第二板自身安装在给定的通信中继装置中的同时，将包括最新设置信息的第二配置信息保持在通信服务中，在启动时确定其自身的操作状态， 并且改变为所确定的操作状态，其中当所述第一和第二板中的任一个都是故障的并且它们同时启动时，所述第一和第二板中的每一个确定基于所述第一和第二配置信息的自身运行状态 。

公开(公告)号：US20140019642A1

公开(公告)日：2014-01-16

申请号：US14007911

申请日：2012-03-28

申请人： Toshiro Yamauchi

发明人： Toshiro Yamauchi

IPC分类号： H04L29/12

CPC分类号： H04L61/20 ,  H04L49/30 ,  H04L49/351 ,  H04L61/2038 ,  H04L61/6022

摘要： A communication device includes a plurality of interface units, each of which is associated with at least one media access control (MAC) address and serves as a node connected to a network, a storage unit which stores information indicating a plurality of MAC addresses, and a plurality of control units, each of which notifies one of the plurality of interface units of a MAC address indicated by information read from the storage unit.

摘要翻译： 通信设备包括多个接口单元，每个接口单元与至少一个媒体访问控制（MAC）地址相关联，并且用作连接到网络的节点，存储单元，其存储指示多个MAC地址的信息，以及 多个控制单元，每个控制单元向多个接口单元中的一个通知由存储单元读取的信息指示的MAC地址。

公开(公告)号：US07974187B2

公开(公告)日：2011-07-05

申请号：US12403079

申请日：2009-03-12

申请人： Toshiro Yamauchi

发明人： Toshiro Yamauchi

IPC分类号： H04L12/26

CPC分类号： H04L12/437 ,  H04L12/4013 ,  Y02D50/10

摘要： In a data transmission system having a plurality of transmitters connected in a ring configuration, a band monitoring unit in each of the plurality of transmitters monitors the bandwidths of a first and a second transmission path between one of the transmitters that comprise the ring and a first and a second transmitter on both sides of said transmitter, respectively. A protection execution unit executes protection processing by setting up a bypass path for each of the first and second transmission paths. Further, when the bandwidth of the first or second transmission path acquired by the band monitoring unit decreases below a threshold, and only when any one of the transmitters comprising the ring and the other transmitters is not executing protection processing, the protection execution unit executes protection processing for the first or second transmission path which is determined to have a bandwidth smaller than the threshold.

摘要翻译： 在具有以环形配置连接的多个发射机的数据传输系统中，多个发射机中的每一个中的频带监视单元监视包括环的发射机之一和第一传输路径之间的第一和第二传输路径的带宽 以及分别在所述发射机两侧的第二发射机。 保护执行单元通过为第一和第二传输路径中的每一个设置旁路路径来执行保护处理。 此外，当由频带监视单元获取的第一或第二传输路径的带宽降低到阈值以下时，只有当包含环和其他发射机的任何一个发射机未执行保护处理时，保护执行单元执行保护 处理被确定为具有小于阈值的带宽的第一或第二传输路径。

公开(公告)号：US07924737B2

公开(公告)日：2011-04-12

申请号：US11690247

申请日：2007-03-23

申请人： Toshiro Yamauchi

发明人： Toshiro Yamauchi

IPC分类号： H04L12/56

CPC分类号： H04L1/0061 ,  H04J3/14 ,  H04L1/203 ,  H04L43/0847 ,  H04L43/16

摘要： A method of detecting a signal degrade of transmission data, a method of detecting a restoration from a signal degrade, and a signal restoration detecting device are provided. The method of detecting a signal degrade includes measuring a discarded data rate of traffic; and comparing said discarded data rate with a threshold value to detect the signal degrade. The method of detecting restoration from a signal degrade includes obtaining a first value by multiplying a threshold value and a multiplier, the threshold value used to detect a signal degrade; and comparing a discarded data rate of a control traffic after a signal degrade with the first value to detect a restoration from the signal degrade. The methods and devices disclosed herein are suitable for precisely determining a signal degrade in a communication system.

摘要翻译： 提供一种检测信号劣化的方法，一种从信号劣化检测恢复的方法和信号恢复检测装置。 检测信号劣化的方法包括测量丢弃的业务数据速率; 以及将所述丢弃的数据速率与阈值进行比较，以检测信号降级。 从信号劣化检测恢复的方法包括：通过乘以阈值和乘数获得第一值，用于检测信号的阈值降低; 以及将信号劣化后的控制业务的丢弃数据速率与所述第一值进行比较，以检测所述信号的恢复。 本文公开的方法和装置适合于精确地确定在通信系统中降级的信号。

公开(公告)号：US07602727B2

公开(公告)日：2009-10-13

申请号：US10953558

申请日：2004-09-30

申请人： Toshiro Yamauchi

发明人： Toshiro Yamauchi

IPC分类号： H04L12/26

CPC分类号： H04L49/3054 ,  H04L1/18

摘要： A transmission repeater has a function of recovery to normal out of the deadlock state of auto-negotiation sequence between switches. The switches exchange auto-negotiation configuration codes via first and second transmission repeaters for a state transition. The first transmission repeater monitors auto-negotiation configuration codes among data transmitted from the opposed switch, and when detecting more than a predetermined number of configuration codes of auto-negotiation having been transmitted during a given period of time, determines that the auto-negotiation sequence between the switches is at a deadlock, and reports it to the second transmission repeater, which then disconnects optical signals from the sending end of the second transmission repeater to the switch for more than twice the propagation time of signals between the switches, thus resolving the deadlock between the switches.

摘要翻译： 传输中继器具有在交换机之间自动协商序列的死锁状态恢复正常的功能。 交换机通过第一和第二传输中继器交换自动协商配置码，用于状态转换。 第一发送中继器监视从相对的交换机发送的数据之间的自动协商配置码，并且当在给定时间段内检测到超过预定数量的已经发送的自动协商的配置码时，确定自动协商序列 在交换机之间处于死锁状态，并将其报告给第二传输中继器，然后将第二传输中继器的光信号从第二传输中继器的发送端切换到交换机两倍以上的交换机之间的信号的传播时间的两倍以上，从而解决 交换机之间的死锁。

公开(公告)号：US20050073965A1

公开(公告)日：2005-04-07

申请号：US10952879

申请日：2004-09-30

申请人： Toshiro Yamauchi

发明人： Toshiro Yamauchi

IPC分类号： H04L12/46 ,  H04B3/36 ,  H04B10/00 ,  H04B10/07 ,  H04B10/556 ,  H04L12/26 ,  H04L12/28 ,  H04L12/413 ,  H04L29/14

CPC分类号： H04L43/00

摘要： Where each of switches opposed to each other detects optical-signal shutoff or optical-signal deterioration on the reception side of its port, the switch brings a link of the port down and outputs an auto-negotiation configuration code, as an LAN signal. Upon receiving the LAN signal transmitted from the switch, a repeating-transmission apparatus transmits the transmitted signal to an auto-negotiation monitor. The auto-negotiation monitor performs code analysis for the transmitted LAN signal. Where the auto-negotiation monitor detects that the transmitted LAN signal is the auto-negotiation configuration code, it notifies a monitor apparatus that “The switch detects a failure and the link is down.”, as an alarm.

摘要翻译： 在彼此相对的每个开关在其端口的接收侧检测到光信号切断或光信号劣化的情况下，交换机将端口的链路降低，并输出自动协商配置码作为LAN信号。 一旦接收到从交换机发送的LAN信号，重复发送装置将发送的信号发送到自动协商监视器。 自动协商监控器对发送的LAN信号执行代码分析。 在自动协商监视器检测到发送的LAN信号是自动协商配置码的情况下，通知监控设备“交换机检测到故障并且链路断开”，作为报警。