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1. 发明专利

JP2006254341A Bridge device in spanning tree protocol network and control packet processing method 审中-公开
标题翻译：网络设备中的布线协议网络和控制分组处理方法
公开(公告)号：JP2006254341A
公开(公告)日：2006-09-21
申请号：JP2005071372
申请日：2005-03-14
申请人： Fujitsu Ltd , 富士通株式会社
发明人： TAKATORI TAKASHI , SASAGAWA YASUSHI , HIYAKUKAI MASAMI
IPC分类号： H04L12/44
CPC分类号： H04L12/462 , H04L45/28
摘要： PROBLEM TO BE SOLVED: To provide a bridge device and a control packet processing method, enabling communication to be continued and to be tracked to the variations of a following network state, even if a trouble or a defective operation is generated, in which spanning tree protocol cannot be operated. SOLUTION: The bridge device for configuring a network, by connecting to the other bridge devices comprises a STP protocol processing unit for executing the spanning tree protocol, a port for transmitting and receiving a bridge protocol data unit between the other bridge devices, a fault-detecting unit for detecting the trouble and the defective operation of the spanning tree protocol by monitoring the STP protocol processing unit, and a BPDU-transmitting unit to be used at fault for transmitting the bridge protocol data unit to be used at fault to the other bridge devices via the port, when the fault and the defective operation of the spanning tree protocol are detected by the fault detecting unit. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供桥接设备和控制分组处理方法，即使产生故障或缺陷操作，使得能够继续通信并跟踪跟随网络状态的变化，在哪个生成树协议不能运行。解决方案：用于通过连接到其他网桥设备来配置网络的网桥设备包括用于执行生成树协议的STP协议处理单元，用于在其他桥接设备之间发送和接收桥接协议数据单元的端口，用于通过监视STP协议处理单元来检测生成树协议的故障和不良操作的故障检测单元，以及用于将用于故障的桥接协议数据单元发送到故障的故障的BPDU发送单元当故障检测单元检测到生成树协议的故障和故障操作时，经由端口的其他桥接设备。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2003274434A Wdm apparatus, client apparatus, and wdm network 有权
标题翻译： WDM设备，客户端设备和WDM网络
公开(公告)号：JP2003274434A
公开(公告)日：2003-09-26
申请号：JP2002070515
申请日：2002-03-14
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HIYAKUKAI MASAMI
IPC分类号： H04J14/00 , H04B10/27 , H04J14/02 , H04Q3/52 , H04B10/20
CPC分类号： H04J14/0227 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0279
摘要： PROBLEM TO BE SOLVED: To provide a WDM apparatus capable of minimizing an occupancy rate of an available band with respect to a wavelength and efficiently utilizing the number of wavelengths of a WDM channel, and to provide a client apparatus and a WDM network.
SOLUTION: The client apparatus 74 supplies setup information in a path layer of a client signal to the WDM apparatus 70, which detects an available band from the path layer of the client signal, maps the detected available band and the wavelength of WDM to minimize the occupancy rate of the available band with respect to the wavelength thereby efficiently utilizing the number of wavelengths of a WDM channel 71.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种WDM装置，其能够使相对于波长的可用频带的占用率最小化并且有效地利用WDM信道的波长数，并且提供客户端设备和WDM网络。解决方案：客户端装置74将客户信号的路径层中的建立信息提供给WDM装置70，WDM装置70从客户信号的路径层检测可用频带，映射检测到的可用频带和WDM的波长以便最小化相对于波长的可用频带的占用率，由此有效地利用WDM信道71的波长数。版权所有（C）2003，JPO

3. 发明专利

JP2006245849A Communication apparatus 审中-公开
标题翻译：通讯设备
公开(公告)号：JP2006245849A
公开(公告)日：2006-09-14
申请号：JP2005056892
申请日：2005-03-02
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SASAGAWA YASUSHI , KAWARAI KENICHI , HIYAKUKAI MASAMI , TAKATORI TAKASHI
IPC分类号： H04L12/28 , H04B17/00 , H04L12/46 , H04L12/70
CPC分类号： H04L12/4645 , H04L12/462 , H04L69/40
摘要： PROBLEM TO BE SOLVED: To provide a communication apparatus for detecting a network fault by its own apparatus only with high accuracy without the need for interaction using the same protocol between its own apparatus and an opposite apparatus under a multi-vendor environment. SOLUTION: A tag-attached packet transmission/reception section 11 generates a tag-attached packet by attaching a tag to a packet, the tag being registered to ports of physical links L for the purpose of identifying a virtual LAN built up between its own apparatus 10 and an opposite apparatus 20, and transmits the resulting packet to the opposite apparatus 20 via one of the physical links L. Further, the tag-attached packet transmission/reception section 11 receives the tag-attached packet subjected to tunneling through the opposite apparatus 20 and transferred from the other of the physical links L. A fault detection section 12 monitors whether or not the transmitted tag-attached packet can be loop-back-received via any of the physical links L while being subjected to tunneling through the opposite apparatus 20 at both ends of the virtual link on the virtual LAN throughout of which the tag-attached packet flows so as to detect the occurrence of a fault. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种仅通过其自己的设备以高精度检测网络故障的通信设备，而不需要在多厂商环境下在其自己的设备和相对设备之间使用相同协议的交互。解决方案：附加标签的分组发送/接收部分11通过将标签附加到分组来生成附加标签的分组，该标签被登记到物理链路L的端口，以便识别在其自己的设备10和相对设备20，并且经由物理链路L之一将所得到的分组发送到对方设备20.此外，标签附加分组发送/接收部11接收经隧道通过的标签附加分组相对设备20并且从物理链路L中的另一个传送。故障检测部分12监视所发送的附加标签的分组是否可以经过任何物理链路L被环回接收，同时被隧道通过在虚拟LAN上的虚拟链路的两端处的相对装置20，其中标签附加包流动，以便检测故障的发生。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2005160000A Apparatus and method for processing control packet in spanning tree protocol 有权
标题翻译：用于处理控制分组的装置和方法
公开(公告)号：JP2005160000A
公开(公告)日：2005-06-16
申请号：JP2003431154
申请日：2003-12-25
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SASAGAWA YASUSHI , HIYAKUKAI MASAMI , TAKATORI TAKASHI
IPC分类号： H04L12/44 , H04L12/701 , H04L12/705 , H04L12/755 , H04L12/56
CPC分类号： H04L45/04 , H04L45/18 , H04L45/563
摘要： PROBLEM TO BE SOLVED: To perform work such as updating software without interrupting a data communication service in a device for supporting a spanning tree protocol (STP). SOLUTION: In a receiving side device, a received control packet received from a transmitting side device is stored in a buffer means 102 and when the transmission of a control packet is stopped for updating software or the like in the transmitting side device, the control packet stored in the buffer means 102 is transferred to a STP processing unit 107 that reconstructs a topology, in a fixed periods. Alternatively, the transmitting side device autonomously transmits a control packet for a fixed periods at fixed intervals from the time when the processing unit 107 that outputs a transmission request of a control packet, stops its operation until it restarts the operation according to an instruction to start an autonomous transmission. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：执行诸如更新软件的工作而不中断用于支持生成树协议（STP）的设备中的数据通信服务。解决方案：在接收侧设备中，从发送侧设备接收到的接收到的控制分组被存储在缓冲器装置102中，并且当控制分组的传输被停止以更新发送侧设备中的软件等时，存储在缓冲装置102中的控制分组被传送到在固定周期内重建拓扑的STP处理单元107。或者，发送方设备从输出控制分组的发送请求的处理单元107起以固定的时间间隔自主地发送控制分组，停止其操作，直到根据开始的指令重新启动操作自主传播。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2007116275A Path protection method and layer 2 switch 有权
标题翻译：路径保护方法和层2开关
公开(公告)号：JP2007116275A
公开(公告)日：2007-05-10
申请号：JP2005303363
申请日：2005-10-18
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HIYAKUKAI MASAMI , TAKATORI TAKASHI , KAWARAI KENICHI
IPC分类号： H04L12/46 , H04L12/70 , H04L12/707 , H04L12/711 , H04L12/723
CPC分类号： H04L12/4645 , H04L12/462 , H04L43/0811 , H04L45/22 , H04L45/28 , H04L45/48 , H04L49/354 , H04L49/552
摘要： PROBLEM TO BE SOLVED: To provide a path protection method and layer 2 switch which can achieve path protection with a low plant-and-equipment investment for simply extending the function of an end node. SOLUTION: In the point-to-point connection section of a virtual network, the path protection method combines a virtual network identifier assigned to one or more users with a virtual network identifier for control and identifies as one path, thus setting an operating side path and a standby side path, and switching the operating side path and the standby side path. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种路径保护方法和第二层交换机，其可以利用较低的设备投资来实现路径保护，以简单地扩展终端节点的功能。解决方案：在虚拟网络的点对点连接部分中，路径保护方法将分配给一个或多个用户的虚拟网络标识符与用于控制的虚拟网络标识符组合，并将其标识为一个路径，从而设置操作侧路径和备用侧路径，并且切换操作侧路径和备用侧路径。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006229477A Failure detector 有权
标题翻译：故障检测器
公开(公告)号：JP2006229477A
公开(公告)日：2006-08-31
申请号：JP2005039528
申请日：2005-02-16
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SASAGAWA YASUSHI , KAWARAI KENICHI , HIYAKUKAI MASAMI , TAKATORI TAKASHI
IPC分类号： H04L12/26 , H04L12/70 , H04L29/14
CPC分类号： H04L41/06 , H04L1/24 , H04L43/10
摘要： PROBLEM TO BE SOLVED: To precisely detect a network trouble only by own device without performing mutual operation by the same protocol between the own device and an opposing one in a multivendor environment. SOLUTION: A trouble monitoring control packet transmitter 11 generates a trouble monitoring control packet, and transmits it to the opposing device 20 dispensing with the mutual operation for detecting trouble by the same protocol as that of the own device. A transmission packet counter 12 counts the number of transmission packets of the trouble monitoring control packet. A reception packet counter 13 receives a control packet transmitted from the opposing device 20, and counts the number of reception packets. A trouble detector 14 monitors the number of transmission packets and that of reception ones, recognizes that the trouble has occurred when there is no change in at least one of the number of transmission packets and that of reception ones within fixed time, and informs the outside of the occurrence of the trouble. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：仅通过自己的设备精确地检测网络故障，而不需要在多厂商环境中通过相同的协议在相同的协议之间进行相互操作。解决方案：故障监视控制分组发送器11产生故障监视控制分组，并将其发送到相对设备20，通过与自身设备相同的协议来发送用于检测故障的相互操作。发送分组计数器12对故障监视控制分组的发送分组的数量进行计数。接收分组计数器13接收从相对设备20发送的控制分组，并对接收分组的数量进行计数。故障检测器14监视发送分组的数量和接收的分组的数量，识别出在固定时间内的传输分组数量和接收数量中的至少一个传输分组中的至少一个没有变化时发生故障，并通知外部的发生的麻烦。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2004228671A Optical transmission apparatus 有权
标题翻译：光传输装置
公开(公告)号：JP2004228671A
公开(公告)日：2004-08-12
申请号：JP2003011117
申请日：2003-01-20
申请人： Fujitsu Ltd , 富士通株式会社
发明人： KIKUTA KAZUTAKA , HARA NOBUYUKI , HIYAKUKAI MASAMI , SHIBA KAZUHIKO , SHOJI TAKUMA , FUJII NAOTAKA
IPC分类号： H04B10/079 , H04B10/27 , H04B10/29 , H04B10/296 , H04J14/00 , H04J14/02 , H04B10/16 , H04B10/02 , H04B10/17
摘要： PROBLEM TO BE SOLVED: To improve the quality and reliability of optical transmission by performing high-quality optical level adjustment control to reduce the circuit scale. SOLUTION: A first optical variable attenuator 14 collectively adjusts the optical levels of all Thru lights on the basis of a control signal. A second optical variable attenuator 15 collectively adjusts the optical levels of all Add lights subjected to wavelength multiplexing on the basis of the control signal. An optical multiplexing section 16 multiplexes optical signals to be outputted from the first and second optical variable attenuators 14, 15. An optical monitoring section 17 monitors the optical signals after outputted from the first and second optical variable attenuators 14, 15. An optical level adjusting control unit 18 generates a control signal on the basis of a monitoring result within an input level range of a post-amplifier 12 so that optical levels of all wavelengths become the same, and performs control adjustment of the optical levels of the first and second optical variable attenuators 14, 15. COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：通过执行高质量的光电平调整控制来降低电路规模，提高光传输的质量和可靠性。解决方案：第一光可变衰减器14基于控制信号共同地调整所有Thru灯的光学电平。第二光可变衰减器15基于控制信号共同地调整经受波长复用的所有添加光的光学电平。光复用部分16复用要从第一和第二光可变衰减器14和15输出的光信号。光监视部分17监视从第一和第二光可变衰减器14和15输出的光信号。控制单元18基于后置放大器12的输入电平范围内的监视结果生成控制信号，使得所有波长的光学水平变得相同，并且执行第一和第二光学器件的光学水平的控制调整可变衰减器14,15。（C）2004，JPO＆NCIPI

8. 发明专利

JP2002026958A ADDRESS MANAGEMENT SYSTEM FOR MULTI-LAYER SWITCH 失效
公开(公告)号：JP2002026958A
公开(公告)日：2002-01-25
申请号：JP2000212521
申请日：2000-07-13
申请人： FUJITSU LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： HIYAKUKAI MASAMI , KAWADA EIJI , TANIGAWA MAKI
IPC分类号： H04L12/46 , H04L12/28 , H04L12/66 , H04L12/70 , H04L12/701 , H04L12/749 , H04L12/761
摘要： PROBLEM TO BE SOLVED: To provide an address management system for a multi-layer switch where one device can provide services. SOLUTION: In the system where LANs are interconnected via an ATM network 12, the ATM network 12 is provide with a table 40 that cross-references each service with a VCI connected to a customer, a core protocol is used for a core network 13 in the ATM network 12, the format of the Global IP service, the IP CUG(Closed User Group) service and the MAC bridging service is capsulated and forwarded, and when a packet goes outside the core network 13, the capsulated packet is decapsulated.

9. 发明专利

JP2002271354A LIGHT PATH SWITCHING APPARATUS AND LIGHT WAVELENGTH MULTIPLEX DIVERSITY COMMUNICATION SYSTEM 失效
公开(公告)号：JP2002271354A
公开(公告)日：2002-09-20
申请号：JP2001062334
申请日：2001-03-06
申请人： FUJITSU LTD
发明人： SATO KAZUYUKI , KONNO HIROKI , HIYAKUKAI MASAMI
IPC分类号： H04J14/00 , H04B10/03 , H04B10/032 , H04B10/07 , H04B10/27 , H04B10/275 , H04J14/02 , H04L12/437 , H04M17/00 , H04B10/02 , H04B10/20
摘要： PROBLEM TO BE SOLVED: To provide a protection system in the communication between ring networks, which can be made between WDM ring networks with existing hardware. SOLUTION: There are pluralities of light wavelength multiplex networks having pluralities of nodes, and a network control system for monitoring the state of the pluralities of nodes. The pluralities of nodes include first, second, and third nodes. The first node has a function for adding or drawing a light wavelength multiplex signal to or from the network. The second node has a function for transferring a signal with the function for adding and drawing. The third node has a function for mutually connecting networks. The first, second, and third nodes have a light path change switch, and a table for displaying the state of the light path change switch and the detection state of node faults. The network control system controls the setting of the light path change switch of a corresponding node so that an optimum light path connection form is achieved based on the detection state of the node faults that is displayed by the table in the first, second, and third nodes.

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