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    • 2. 发明申请
    • Communication Node and Communication System
    • 通信节点和通信系统
    • US20090310482A1
    • 2009-12-17
    • US12482593
    • 2009-06-11
    • Machiko ASAIEKazuhiro KusamaNaomichi Nonaka
    • Machiko ASAIEKazuhiro KusamaNaomichi Nonaka
    • G06F11/00
    • G06F11/1443H04L41/0654H04L41/0677
    • In a network wherein a data plane for communicating user data, and a control plane for managing data forwarders are configured of different media, the path teardown of the data plane which is forwarding the data is prevented when a fault has occurred in only the control plane. When the GMPLS controller of the control plane has detected refresh timeout with respect to an adjacent node (101 in FIG. 1), it checks whether or not a transmission equipment corresponding to a faulty controller has a fault (102), and it maintains a path state (103) in a case where the fault is limited to the control plane. Thus, the exchange of refresh messages with the adjacent node is continued without cleaning up the resources of the transmission equipment (104 through 107).
    • 在用于传送用户数据的数据平面和用于管理数据转发器的控制平面由不同的媒体构成的网络中,在仅在控制平面中发生故障时,防止转发数据的数据平面的路径拆除 。 当控制平面的GMPLS控制器相对于相邻节点(图1中的101)检测到刷新超时时,它检查与故障控制器相对应的传输设备是否具有故障(102),并且维持 在故障被限制到控制平面的情况下的路径状态(103)。 因此,在不清理传输设备(104至107)的资源的情况下,继续与相邻节点进行刷新消息的交换。
    • 8. 发明申请
    • COMMUNICATION NODE AND COMMUNICATION SYSTEM
    • 通信节点和通信系统
    • US20130003525A1
    • 2013-01-03
    • US13611288
    • 2012-09-12
    • Machiko ASAIEKazuhiro KUSAMANaomichi NONAKA
    • Machiko ASAIEKazuhiro KUSAMANaomichi NONAKA
    • H04L12/26H04L29/14
    • G06F11/1443H04L41/0654H04L41/0677
    • Communication node including a transmission equipment which communicates user data with transmission equipment of an adjacent node, and a controller which communicates a message with a controller of the adjacent node and which manages the transmission equipment of its own node, wherein: a controller of the node detects existence or nonexistence of fault of a controller of the adjacent node on the basis of situation of receiving a message sent from the controller of the adjacent node; when the controller of the node detects the fault of the controller of the adjacent node, the controller of the node issues a state reference notice to a transmission equipment of its own node and checks existence or nonexistence of fault alert detection; in a case where the fault alert detection of the transmission equipment of the node does not exist, the controller of the node maintains a path state of the node.
    • 通信节点包括将用户数据与相邻节点的传输设备进行通信的传输设备,以及与邻接节点的控制器通信消息并管理其自身节点的传输设备的控制器,其中:节点的控制器 基于接收从相邻节点的控制器发送的消息的情况,检测相邻节点的控制器的故障的存在或不存在; 当节点的控制器检测到相邻节点的控制器的故障时,节点的控制器向其自身节点的传输设备发出状态参考通知,并检查故障警报检测的存在或不存在; 在不存在节点的传输设备的故障警报检测的情况下,节点的控制器维护节点的路径状态。
    • 10. 发明授权
    • Network system of recovering routing information
    • 网络系统恢复路由信息
    • US07969865B2
    • 2011-06-28
    • US11802543
    • 2007-05-23
    • Naomichi Nonaka
    • Naomichi Nonaka
    • G01R31/08
    • H04Q11/0062H04L43/0817H04L45/22H04L45/28H04L45/50H04Q2011/0077H04Q2011/0081
    • When protection processing is applied after a fault in the optical switching unit while the path control unit is restarting. In network systems comprising a path control unit for setting the paths, and a data transmission unit coupled to the path control unit; the data transmission unit changes the path information, stores path information before and after the fault was detected, and transmits the path information from before or after fault detection to the path control unit, and decides either of the transmitted path information based on an internal status; and the path control unit stores the path information sent from the data transmission unit, and after restarting, receives path information from the data transmission unit and, acquires path information stored in the path control units controlled by the adjacently connected data transmission units and is restored to operation with path information from before restarting.
    • 当路径控制单元重启时,在光开关单元发生故障后应用保护处理。 在包括用于设置路径的路径控制单元的网络系统中,以及耦合到路径控制单元的数据传输单元; 数据传输单元改变路径信息,存储检测到故障之前和之后的路径信息,并且将路径信息从故障检测之前或之后发送到路径控制单元,并且基于内部状态来决定传输路径信息 ; 并且路径控制单元存储从数据发送单元发送的路径信息,并且在重新启动之后,从数据发送单元接收路径信息,并获取存储在由相邻连接的数据发送单元控制的路径控制单元中的路径信息,并且恢复 以重新启动之前的路径信息进行操作。