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    NETWORK SYSTEM, LAYER 2 SWITCH, AND METHOD OF DETECTING OCCURRENCE OF A FAULT IN A NETWORK
    4.
    发明申请
    NETWORK SYSTEM, LAYER 2 SWITCH, AND METHOD OF DETECTING OCCURRENCE OF A FAULT IN A NETWORK 有权
    网络系统，层2交换机和检测网络故障发生的方法

    公开(公告)号：US20120039184A1

    公开(公告)日：2012-02-16

    申请号：US13191981

    申请日：2011-07-27

    申请人： SHINICHI AKAHANE ,  Teruo Kaganoi ,  Tetsuya Nagata

    发明人： SHINICHI AKAHANE ,  Teruo Kaganoi ,  Tetsuya Nagata

    IPC分类号： H04L12/26

    CPC分类号： H04L43/00 ,  H04L41/0677 ,  H04L43/10 ,  H04L43/50 ,  H04L45/28 ,  H04L49/555 ,  H04L49/557

    摘要： A network system comprises a first communication device being set up with a first address; and a second communication device connected with the first communication device via a network and being set up with a second address, wherein the first communication device includes a monitor frame transmitter configured to generate a monitor frame including the second address as a destination address and the first address as a source address, and to output the generated monitor frame to the network; and a monitoring-response frame monitor configured to monitor reception of a monitoring-response frame sent back from the second communication device, wherein the second communication device includes: a monitoring-response frame transmitter configured to, in response to reception of the monitor frame, generate the monitoring-response frame by exchanging the destination address in the received monitor frame for a source address and the source address in the received monitor frame for a destination address, and output the generated monitoring-response frame to the network.

    摘要翻译： 网络系统包括：第一通信设备，其具有第一地址; 以及第二通信设备，其经由网络与所述第一通信设备连接并且被建立为具有第二地址，其中所述第一通信设备包括监视帧发送器，所述监视帧发送器被配置为生成包括所述第二地址作为目的地地址的监视帧， 地址作为源地址，并将生成的监视帧输出到网络; 以及监视响应帧监视器，被配置为监视从所述第二通信设备发回的监视响应帧的接收，其中所述第二通信设备包括：监视响应帧发送器，被配置为响应于所述监视帧的接收， 通过在接收到的监视帧中交换目的地址的源地址和接收到的监视帧中的源地址来生成监视响应帧，并将生成的监视响应帧输出到网络。

    COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION FAULT DETECTION METHOD
    5.
    发明申请
    COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION FAULT DETECTION METHOD 审中-公开
    通信设备，通信系统和通信故障检测方法

    公开(公告)号：US20120026894A1

    公开(公告)日：2012-02-02

    申请号：US13270305

    申请日：2011-10-11

    申请人： Shinichi AKAHANE ,  Teruo Kaganoi ,  Tomohiko Kohno ,  Kazuo Sugai

    发明人： Shinichi AKAHANE ,  Teruo Kaganoi ,  Tomohiko Kohno ,  Kazuo Sugai

    IPC分类号： G01R31/08

    CPC分类号： H04L1/22 ,  H04L1/24

    摘要： The communication device has a frame transfer unit that executes frame transfer via the first communication link and the second communication link, a link confirmation frame sending unit, and a return link confirmation frame monitoring unit. The link confirmation frame sending unit causes the frame transfer processing unit to send a link confirmation frame for use in confirming a normal link status via the first communication link from the communication device to the counterpart communication device. The return link confirmation frame monitoring unit performs fault detection of the first and second communication links by monitoring a return link confirmation frame which is to be returned from the counterpart communication device to the communication device via the second communication link when the counterpart communication device receives the link confirmation frame via the first communication link.

    摘要翻译： 通信装置具有经由第一通信链路和第二通信链路执行帧传送的帧传送单元，链路确认帧发送单元和返回链路确认帧监视单元。 链接确认帧发送单元使得帧传送处理单元经由第一通信链路从通信装置向对方通信装置发送用于确认正常链路状态的链路确认帧。 返回链路确认帧监视单元，当对方通信装置接收到所述第一和第二通信链路时，通过监视从对方通信装置向通信装置返回的返回链路确认帧，对第一通信链路和第二通信链路进行故障检测 链路确认帧通过第一通信链路。

    NETWORK RELAY APPARATUS
    6.
    发明申请
    NETWORK RELAY APPARATUS 有权
    网络继电器

    公开(公告)号：US20110002337A1

    公开(公告)日：2011-01-06

    申请号：US12829735

    申请日：2010-07-02

    申请人： Shinichi AKAHANE ,  Teruo Kaganoi ,  Tetsuya Nagata

    发明人： Shinichi AKAHANE ,  Teruo Kaganoi ,  Tetsuya Nagata

    IPC分类号： H04L12/28 ,  H04L12/56

    CPC分类号： H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04L45/32

    摘要： Network relay arrangements including: multiple ports; MAC address storage; flooding indication storage; plane number management storage; table manager; and frame processor. The table manager: utilizes the plane number management storage to specify current identification information being currently used and next identification information to be used next, with regard to a preset element of the key item for identifying a target of deletion of the information of correlating the transmit port to the MAC address from the MAC address storage; sets the requirement of the flooding operation in registry of a certain information group in the flooding indication storage having the preset element and being correlated to the current identification information; and sets the non-requirement of the flooding operation in registry of a certain information group in the flooding indication storage having the preset element and being correlated to the next identification information.

    摘要翻译： 网络中继安排包括：多个端口; MAC地址存储; 淹水指示存储; 飞机号码管理存储; 表经理; 和帧处理器。 表管理器：利用平面号管理存储器来指定当前使用的当前标识信息和下一个要使用的下一个标识信息，关于用于识别删除关于发送的信息的信息的关键项目的预设元素 端口到MAC地址从MAC地址存储; 将具有预设要素的洪泛指示存储器中的某个信息组的注册中的洪泛操作的要求设置为与当前识别信息相关; 并且在具有预设元素的洪泛指示存储器中将特定信息组的注册中的洪泛操作的不要求设置为与下一个识别信息相关联。

    COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION FAULT DETECTION METHOD
    7.
    发明申请
    COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION FAULT DETECTION METHOD 失效
    通信设备，通信系统和通信故障检测方法

    公开(公告)号：US20090141641A1

    公开(公告)日：2009-06-04

    申请号：US12177938

    申请日：2008-07-23

    申请人： Shinichi Akahane ,  Teruo Kaganoi ,  Tomohiko Kohno ,  Kazuo Sugai

    发明人： Shinichi Akahane ,  Teruo Kaganoi ,  Tomohiko Kohno ,  Kazuo Sugai

    IPC分类号： G06F11/00

    CPC分类号： H04L1/22 ,  H04L1/24

    摘要： The communication device has a frame transfer unit that executes frame transfer via the first communication link and the second communication link, a link confirmation frame sending unit, and a return link confirmation frame monitoring unit. The link confirmation frame sending unit causes the frame transfer processing unit to send a link confirmation frame for use in confirming a normal link status via the first communication link from the communication device to the counterpart communication device. The return link confirmation frame monitoring unit performs fault detection of the first and second communication links by monitoring a return link confirmation frame which is to be returned from the counterpart communication device to the communication device via the second communication link when the counterpart communication device receives the link confirmation frame via the first communication link.

    摘要翻译： 通信装置具有经由第一通信链路和第二通信链路执行帧传送的帧传送单元，链路确认帧发送单元和返回链路确认帧监视单元。 链接确认帧发送单元使得帧传送处理单元经由第一通信链路从通信装置向对方通信装置发送用于确认正常链路状态的链路确认帧。 返回链路确认帧监视单元，当对方通信装置接收到所述第一和第二通信链路时，通过监视从对方通信装置向通信装置返回的返回链路确认帧，对第一通信链路和第二通信链路进行故障检测 链路确认帧通过第一通信链路。

    Communication device, communication system, and communication fault detection method
    8.
    发明授权
    Communication device, communication system, and communication fault detection method 有权
    通信设备，通信系统和通信故障检测方法

    公开(公告)号：US08937869B2

    公开(公告)日：2015-01-20

    申请号：US13270305

    申请日：2011-10-11

    申请人： Shinichi Akahane ,  Teruo Kaganoi ,  Tomohiko Kohno ,  Kazuo Sugai

    发明人： Shinichi Akahane ,  Teruo Kaganoi ,  Tomohiko Kohno ,  Kazuo Sugai

    IPC分类号： H04J3/14 ,  H04L1/22 ,  H04L1/24

    CPC分类号： H04L1/22 ,  H04L1/24

    摘要： The communication device has a frame transfer unit that executes frame transfer via the first communication link and the second communication link, a link confirmation frame sending unit, and a return link confirmation frame monitoring unit. The link confirmation frame sending unit causes the frame transfer processing unit to send a link confirmation frame for use in confirming a normal link status via the first communication link from the communication device to the counterpart communication device. The return link confirmation frame monitoring unit performs fault detection of the first and second communication links by monitoring a return link confirmation frame which is to be returned from the counterpart communication device to the communication device via the second communication link when the counterpart communication device receives the link confirmation frame via the first communication link.

    摘要翻译： 通信装置具有经由第一通信链路和第二通信链路执行帧传送的帧传送单元，链路确认帧发送单元和返回链路确认帧监视单元。 链接确认帧发送单元使得帧传送处理单元经由第一通信链路从通信装置向对方通信装置发送用于确认正常链路状态的链路确认帧。 返回链路确认帧监视单元，当对方通信装置接收到所述第一和第二通信链路时，通过监视从对方通信装置向通信装置返回的返回链路确认帧，对第一通信链路和第二通信链路进行故障检测 链路确认帧通过第一通信链路。

    Network system, layer 2 switch, and method of detecting occurrence of a fault in a network
    9.
    发明授权
    Network system, layer 2 switch, and method of detecting occurrence of a fault in a network 有权
    网络系统，二层交换机和检测网络故障发生的方法

    公开(公告)号：US08755288B2

    公开(公告)日：2014-06-17

    申请号：US13191981

    申请日：2011-07-27

    申请人： Shinichi Akahane ,  Teruo Kaganoi ,  Tetsuya Nagata

    发明人： Shinichi Akahane ,  Teruo Kaganoi ,  Tetsuya Nagata

    IPC分类号： H04L12/26

    CPC分类号： H04L43/00 ,  H04L41/0677 ,  H04L43/10 ,  H04L43/50 ,  H04L45/28 ,  H04L49/555 ,  H04L49/557

    摘要： A network system comprises a first communication device having a first address connected, using a network, to a second communication device having a second address. The first communication device includes a monitor frame transmitter configured to generate a monitor frame including the second address as a destination address and the first address as a source address, and to output the generated monitor frame to the network; and a monitoring-response frame monitor configured to monitor reception of a monitoring-response frame sent back from the second communication device. The second communication device includes: a monitoring-response frame transmitter configured to, in response to reception of the monitor frame, generate the monitoring-response frame by exchanging the destination address in the received monitor frame for a source address and the source address in the received monitor frame for a destination address, and output the generated monitoring-response frame to the network.

    摘要翻译： 网络系统包括具有使用网络连接到具有第二地址的第二通信设备的第一地址的第一通信设备。 第一通信装置包括：监视帧发送器，被配置为生成包括作为目的地地址的第二地址和第一地址作为源地址的监视帧，并将生成的监视帧输出到网络; 以及监视响应帧监视器，被配置为监视从所述第二通信设备发回的监视响应帧的接收。 第二通信装置包括：监视响应帧发送器，被配置为响应于监视帧的接收，通过在接收的监视帧中交换源地址的目的地地址和源地址中的源地址来生成监视响应帧 接收目标地址的监控帧，并将生成的监控响应帧输出到网络。

    RELAY DEVICE, NETWORK SYSTEM, AND NETWORK FAILURE DETECTION METHOD
    10.
    发明申请
    RELAY DEVICE, NETWORK SYSTEM, AND NETWORK FAILURE DETECTION METHOD 有权
    继电器，网络系统和网络故障检测方法

    公开(公告)号：US20120263044A1

    公开(公告)日：2012-10-18

    申请号：US13403461

    申请日：2012-02-23

    申请人： Shinichi Akahane ,  Teruo Kaganoi

    发明人： Shinichi Akahane ,  Teruo Kaganoi

    IPC分类号： H04L12/26

    CPC分类号： H04L43/10 ,  H04L43/026

    摘要： A relay device comprises: a packet type determining unit that determines: whether a received packet is a monitoring packet, sent by a first communication device that monitors a network connection state, set the first communication device as the sending source, and set a second communication device that is monitored as the sending destination; and whether the received packet is a monitoring response packet sent as the response to the monitoring packet with sending source address and destination address of monitoring packet interchanged; a transfer processing unit that receives the monitoring packet and transfers it to a destination; a monitoring unit that monitors receipt of the monitoring response packet within a specified period; and a failure notification packet sending unit that generates a failure notification packet and sends it to a specified destination, when the monitoring response packet is not received within the specified period.

    摘要翻译： 中继装置包括：分组类型确定单元，确定接收到的分组是否是由监视网络连接状态的第一通信设备发送的监视分组，将第一通信设备设置为发送源，并设置第二通信 监控作为发送目的地的设备; 接收到的分组是否是作为对监视分组的响应而发送的监视响应分组，其中发送源地址和监视分组的目的地地址互换; 传送处理单元，接收监视包并将其传送到目的地; 监视单元，监视在指定时间段内的监视响应分组的接收; 以及故障通知分组发送单元，当在规定的时间段内未接收到所述监视响应分组时，生成故障通知分组并将其发送到指定的目的地。