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    • 5. 发明授权
    • Communication node and communication system
    • 通信节点和通信系统
    • US08279758B2
    • 2012-10-02
    • US12482593
    • 2009-06-11
    • Machiko AsaieKazuhiro KusamaNaomichi Nonaka
    • Machiko AsaieKazuhiro KusamaNaomichi Nonaka
    • G01R31/08
    • 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。
    • 6. 发明授权
    • Communication node and communication system
    • 通信节点和通信系统
    • US08988989B2
    • 2015-03-24
    • US13611288
    • 2012-09-12
    • Machiko AsaieKazuhiro KusamaNaomichi Nonaka
    • Machiko AsaieKazuhiro KusamaNaomichi Nonaka
    • G01R31/08G06F11/14H04L12/24
    • 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。
    • 7. 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。
    • 9. 发明申请
    • Optical network equipment and optical network
    • 光网络设备和光网络
    • US20070014510A1
    • 2007-01-18
    • US11485300
    • 2006-07-13
    • Kazuhiro Kusama
    • Kazuhiro Kusama
    • G02B6/26
    • H04Q11/0062H04B10/572H04J14/0201H04J14/0221H04J14/0227H04J14/0241H04J14/0258H04J14/0267H04J14/0278H04Q2011/0011H04Q2011/0049H04Q2011/0079H04Q2011/0083H04Q2011/0088
    • A position in which an optical signal characteristic is compensated in an optical network can be chosen. An optical network equipment measures an optical signal characteristic for each wavelength, and notifies an optical network equipment on a communication path of an optical signal characteristic index and control necessity determination threshold. In an upstream portion of the communication path, the optical network equipment (a start point or the like of the communication path) that can compensate the optical signal characteristic for each wavelength determines the necessity to eliminate a deviation between wavelengths and the position to eliminate it, using the optical signal characteristic index and the control necessity determination threshold. The equipment determines a compensator to be controlled, and a compensation amount, based on the result, and commands an optical network equipment including the compensator to control the compensator, using a communication path establishment control protocol such as GMPLS-extended RSVP-TE.
    • 可以选择在光网络中补偿光信号特性的位置。 光网络设备测量每个波长的光信号特性,并将通信路径上的光网络设备通知光信号特性指标和控制必要性判定阈值。 在通信路径的上游部分中,可以补偿每个波长的光信号特性的光网络设备(通信路径的起始点等)决定了消除波长之间的偏差和消除它的位置的必要性 ,使用光信号特性指标和控制必要性判定阈值。 设备根据结果确定要控制的补偿器和补偿量,并使用通信路径建立控制协议(如GMPLS扩展的RSVP-TE)命令包括补偿器的光网络设备来控制补偿器。