公开(公告)号：US09509435B2

公开(公告)日：2016-11-29

申请号：US14100140

申请日：2013-12-09

申请人： FUJITSU LIMITED

发明人： Haruka Shinohara ,  Kiyotoshi Noheji ,  Takuya Miyashita

IPC分类号： H04J14/02 ,  H04B10/038 ,  H04Q11/00

CPC分类号： H04J14/0268 ,  H04B10/038 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0271 ,  H04J14/0275 ,  H04Q2011/0081

摘要： A determination device for a wavelength division multiplex communication system, configured to set each of different paths each of which is formed by connection of spans each of which is a zone between two adjacent transmission devices, among transmission devices forming a communication network, in the communication network, or a single span in the communication network, for the corresponding one of different wavelengths, and configured to transmit an optical signal of each of the wavelengths via the corresponding path set to the wavelength, the device includes: a determination section configured to determine whether an optical signal of at least one of the wavelengths is transmittable only to a path, among newly formed paths, for which the number of spans forming the path is equal to or less than a predetermined upper-limit number, in order to transmit one or more optical signals of one or more wavelengths among the wavelengths.

摘要翻译： 一种用于波分多路复用通信系统的确定装置，用于在通信网络的传输设备之间，在通信网络中设置每个不同的路径，每条不同的路径通过连接两个相邻的传输设备之间的区域的跨度而形成 网络或通信网络中的单个跨度，对于不同波长的相应一个，并且被配置为经由设置为波长的相应路径发送每个波长的光信号，该设备包括：确定部分，被配置为确定 在形成路径的跨度数目等于或小于预定的上限数量的新形成的路径中，至少一个波长的光信号是否只能发送到路径，以便发送一个 或更多个波长中的一个或多个波长的光信号。

公开(公告)号：US09455779B2

公开(公告)日：2016-09-27

申请号：US14954324

申请日：2015-11-30

申请人： Mark E. Boduch ,  Kimon Papakos

发明人： Mark E. Boduch ,  Kimon Papakos

IPC分类号： H04B10/00 ,  H04J14/00 ,  H04J14/02 ,  H04B10/032 ,  H04B10/038 ,  H04B10/40

CPC分类号： H04B10/032 ,  H04B10/038 ,  H04B10/40 ,  H04B2201/70703 ,  H04J14/026 ,  H04J14/0287

摘要： A method and apparatus for performing path protection for rate-adaptive optics is provided. As part of the method, an aggregate input bit stream is received. The aggregate input bit stream is then transmitted using a rate-adaptive optical transceiver when transmitting on a first optical path. When the first optical path has a fault, the aggregate input bit stream is then transmitted on a second optical path using the rate-adaptive optical transceiver and a fixed-rate optical transceiver.

公开(公告)号：US09264170B2

公开(公告)日：2016-02-16

申请号：US14182576

申请日：2014-02-18

申请人： FUJITSU LIMITED

发明人： Yuuichi Namai ,  Eijiro Yoshida

IPC分类号： H04J14/02 ,  H04B10/032 ,  H04B10/038

CPC分类号： H04J14/0295 ,  H04B10/032 ,  H04B10/038

摘要： A transponder among a plurality of transponders that are connected with a client device via a plurality of optical couplers, the transponder includes a protection timer configured to be activated when an alarm indication signal transmitted from the client device is received, and a controller configured to control transmission of an optical signal to one of the plurality of optical couplers when the protection timer times out, wherein a timeout value of the protection timer is set to a value different from a timeout value of a protection timer included in another transponder.

摘要翻译： 经由多个光耦合器与客户端设备连接的多个应答器之间的应答器，该应答器包括：保护定时器，被配置为当从客户端设备发送的报警指示信号被接收时被激活;以及控制器，被配置为控制 当保护定时器超时时，将光信号传输到多个光耦合器中的一个，其中保护定时器的超时值被设置为与包括在另一应答器中的保护定时器的超时值不同的值。

公开(公告)号：US20150365163A1

公开(公告)日：2015-12-17

申请号：US14835982

申请日：2015-08-26

申请人： Cisco Technology, Inc.

发明人： Ornan Alexander Gerstel

IPC分类号： H04B10/038

CPC分类号： H04B10/038 ,  H04J14/0268 ,  H04L45/22 ,  H04L45/62 ,  H04Q11/0005

摘要： A router configured to communicate data with a destination router over an IP path that includes an IP link that uses a first optical path. The router configured to proactively maintain the performance of the communication of data. The router configured to receive a signal to move the communication off of the first optical path, before performance of the first optical path has failed. The router configured to establish a second optical path to the destination router an associate the IP link with the second optical path and move the communication of data with the destination router to the second optical path. The router may optionally be configured to tear down the first optical path. The trigger received by the router may be an indication of a performance degradation of the first optical path or an indication of a router interface used by the IP link being switched into maintenance mode.

摘要翻译： 配置为通过包含使用第一光路的IP链路的IP路径与目的地路由器通信数据的路由器。 路由器配置为主动维护数据通信的性能。 所述路由器被配置为在所述第一光路的执行失败之前接收用于将所述通信从所述第一光路移出的信号。 被配置为建立到目的地路由器的第二光路的路由器将IP链路与第二光路相关联，并且将与目的地路由器的数据通信移动到第二光路。 路由器可以可选地被配置为撕开第一光路。 由路由器接收的触发可以是第一光路的性能下降的指示或由IP链路切换到维护模式所使用的路由器接口的指示。

公开(公告)号：US20150333821A1

公开(公告)日：2015-11-19

申请号：US14418160

申请日：2013-07-30

申请人： NEC Corporation

发明人： Hitoshi TAKESHITA

IPC分类号： H04B10/038 ,  G06F11/20

CPC分类号： H04B10/038 ,  G06F11/2025 ,  H04J14/0295 ,  H04L69/40 ,  H04Q11/00 ,  H04Q2213/1301

摘要： This multi-failure resolution optical node has: an operating system wavelength path; two or more standby system wavelength paths which are assigned to the operating system wavelength path and have been assigned a ranking; and node control means that can separately operate the operating system wavelength path and the standby system wavelength paths in a normal power consumption mode or a reduced power consumption mode. Thus, it is possible to provide an optical node with which power consumption is reduced and with which switching to a standby system wavelength path can be performed quickly in response to a failure in the operating system wavelength path.

摘要翻译： 该多故障分辨率光节点具有：操作系统波长路径; 分配给操作系统波长路径并被分配了排名的两个或更多个备用系统波长路径; 以及能够以正常功耗模式或降低的功耗模式分别操作操作系统波长路径和备用系统波长路径的节点控制装置。 因此，可以提供功率消耗降低的光学节点，并且响应于操作系统波长路径的故障，可以快速地执行切换到备用系统波长路径。

公开(公告)号：US09172460B2

公开(公告)日：2015-10-27

申请号：US14250812

申请日：2014-04-11

申请人： FUJITSU LIMITED

发明人： Tomoyoshi Fujimori

IPC分类号： H04B10/038 ,  H04L12/26 ,  H04Q11/00

CPC分类号： H04B10/038 ,  H04J3/1658 ,  H04J2203/006 ,  H04J2203/0082 ,  H04L43/0852 ,  H04L45/22 ,  H04L45/28 ,  H04Q11/0005 ,  H04Q2011/0043

摘要： Transmission equipment comprises: a measurement unit configured to measure respective transmission delays of the plurality of paths by using a frame transmitted between the transmission equipment and correspondent equipment; a detector configured to detect a priority of an input packet; a selector configured to select a path for transmitting the input packet from among the plurality of paths; and a frame processing unit configured to transmit a frame onto which the input packet is mapped to the correspondent equipment through a path selected by the selector. The selector selects an alternative path for transmitting the input packet from among the plurality of paths based on the priority of the input packet detected by the detector and respective transmission delays of the plurality of paths measured by the measurement unit when a failure occurs in a path that has been selected by the selector.

摘要翻译： 传输设备包括：测量单元，被配置为通过使用在传输设备和对应设备之间传输的帧来测量多个路径的各个传输延迟; 检测器，被配置为检测输入分组的优先级; 配置为从所述多个路径中选择用于发送所述输入分组的路径的选择器; 以及帧处理单元，被配置为通过由选择器选择的路径将输入分组映射到的帧发送到通信设备。 选择器基于检测器检测到的输入分组的优先级和由测量单元测量的多个路径的各个传输延迟在路径中发生故障时选择用于从多个路径中发送输入分组的替代路径 已由选择器选择。

公开(公告)号：US09154220B2

公开(公告)日：2015-10-06

申请号：US14185168

申请日：2014-02-20

申请人： Hitachi, Ltd.

发明人： Toshiki Sugawara ,  Hidehiro Toyoda ,  Kenichi Tanaka

IPC分类号： G02F1/00 ,  G02F2/00 ,  H01S3/00 ,  H04B10/00 ,  H04J14/00 ,  H04B10/038 ,  G02B6/02 ,  H04B10/032 ,  H04B10/077 ,  H04J14/02 ,  G02B6/35

CPC分类号： H04B10/038 ,  G02B6/02042 ,  G02B6/3528 ,  H04B10/032 ,  H04B10/077 ,  H04J14/0275 ,  H04J14/029 ,  H04J14/0291

摘要： A highly reliable optical switching device and optical switching method ensure restoration of the failure in the large-capacity high density wiring of the multicore fiber with the general number of cores (7 cores, 19 cores and the like). An optical transmission system which transmits a supervisory control signal concerning a transmission path switching to one or more cores of a single or multiple multicore fibers, an active signal to one or more cores, and a standby signal to one or more cores includes optical switching devices connected to respective ends of the optical transmission system. Upon detection of the transmission failure of the active signal based on the signal transmission condition and information from the supervisory control signal, it is switched to the standby signal. The supervisory control signal is transmitted to the center core of the multicore fiber.

摘要翻译： 高可靠性的光开关器件和光开关方法可确保多芯光纤的大容量高密度布线的故障恢复，具有一般核心数（7芯，19芯等）。 一种光传输系统，其发送关于传输路径切换到单个或多个多芯光纤的一个或多个核心的监控控制信号，到一个或多个核心的活动信号和到一个或多个核心的备用信号，包括光学开关设备 连接到光传输系统的相应端。 在根据信号传输条件和来自监控信号的信息检测到有效信号的传输故障时，切换到待机信号。 监控信号传输到多芯光纤的中心核心。

公开(公告)号：US20150229387A1

公开(公告)日：2015-08-13

申请号：US14693160

申请日：2015-04-22

申请人： AT&T Intellectual Property II, L.P.

发明人： Angela L. Chiu ,  John Lester Strand

IPC分类号： H04B10/038

CPC分类号： H04B10/038 ,  H04L45/00 ,  H04L45/28 ,  H04L45/58 ,  H04L45/62 ,  H04L49/557 ,  H04Q11/0062 ,  H04Q11/0066 ,  H04Q11/0071 ,  H04Q2011/0064 ,  H04Q2011/0081

摘要： A method and system for providing joint IP/Optical Layer restoration mechanisms for the IP over Optical Layer architecture, particularly for protecting against router failure within such architecture, includes any one of plural node elements participating in the detection and restoration of the joint IP/Optical Layer architecture upon the failure of a router in one of the nodes. The plural node elements may include, but are not limited to, one of plural routers and an optical cross-connect.

摘要翻译： 一种用于为IP over Optical Layer架构提供联合IP /光层恢复机制的方法和系统，特别是用于防止这种架构内的路由器故障，包括参与联合IP /光纤的检测和恢复的多个节点元素中的任何一个 路由器在其中一个节点发生故障时的层架构。 多个节点元素可以包括但不限于多个路由器之一和光交叉连接。

公开(公告)号：US20130302026A1

公开(公告)日：2013-11-14

申请号：US13799720

申请日：2013-03-13

申请人： FUJITSU LIMITED

发明人： Tomohiro Hashiguchi ,  Kazuyuki Tajima ,  Yutaka Takita

IPC分类号： H04B10/038

CPC分类号： H04B10/038 ,  H04J14/0257 ,  H04J14/0267

摘要： An apparatus searches for one or more first routes coupling starting and ending point nodes in a communication network including an asymmetry node, based on topology information indicating a connection relationship between nodes on the communication network. The apparatus determines, for each of the one or more first routes, whether or not signals are transmittable between the starting and ending point nodes under path restriction imposed on the asymmetry node, based on asymmetry-node information indicating the path restriction imposed on the asymmetry node. The apparatus determines a second route that has a minimum sum of link costs among one or more third routes for which it is determined that signals are transmittable between the starting and ending point nodes under the path restriction imposed on the asymmetry node, based on cost information storing a link cost of a link connecting each pair of adjacent nodes on the communication network.

摘要翻译： 基于指示通信网络上的节点之间的连接关系的拓扑信息，设备搜索包括不对称节点的通信网络中的起点和终点节点的一个或多个第一路由。 所述设备针对所述一个或多个第一路由中的每个路由，基于施加在所述不对称节点上的路径限制的不对称节点信息，确定在所述不对称节点上施加的路径限制下在起点和终点节点之间是否可发送信号 节点。 该装置确定在一个或多个第三路由之间具有链路成本的最小值的第二路由，基于成本信息确定信号可以在施加在不对称节点上的路径限制下的起点和终点之间的节点之间传输 存储在通信网络上连接每对相邻节点的链路的链路费用。

公开(公告)号：US20130294762A1

公开(公告)日：2013-11-07

申请号：US13779797

申请日：2013-02-28

申请人： FUJITSU LIMITED

发明人： Ayumu Nonaka

IPC分类号： H04B10/038

CPC分类号： H04B10/038 ,  H04B10/032 ,  H04B10/275

摘要： An optical transmission device includes: a switching configured to be capable of switching a transmission path to which light is input from a first transmission path to a second transmission path; a first calculation unit configured to calculate, based on a difference between a first light level of the first transmission path and a second light level of the second transmission path, a first control amount for the second light level; and a control unit configured to perform a first control in which the second light level is decreased or increased based on the first control amount upon switching of the transmission path.

摘要翻译： 光传输装置包括：被配置为能够将从第一传输路径输入光的传输路径切换到第二传输路径的切换; 第一计算单元，被配置为基于第一传输路径的第一光级和第二传输路径的第二光级之间的差计算第二光级的第一控制量; 以及控制单元，被配置为在切换传输路径时基于第一控制量执行其中第二光级别减小或增加的第一控制。