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1. 发明授权

US08462617B2 Method for relieving failure, and packet communication device 有权
公开(公告)号：US08462617B2
公开(公告)日：2013-06-11
申请号：US11665303
申请日：2006-09-19
申请人： Yukio Tsukishima , Naohide Nagatsu , Atsushi Watanabe , Akira Hirano
发明人： Yukio Tsukishima , Naohide Nagatsu , Atsushi Watanabe , Akira Hirano
IPC分类号： G01R31/08
CPC分类号： H04L45/22 , H04L41/0663 , H04L41/0677 , H04L41/12 , H04L43/0811 , H04L45/02 , H04L45/26 , H04L45/28 , H04L45/50 , H04L45/56 , Y04S40/164 , Y04S40/166 , Y04S40/168
摘要： When a failure occurs on a path set between two packet communication devices, a protection path is set and the communication is recovered without having the effect of the path failure on devices other than the two packet communication devices. When a packet communication device detects a failure in a transmission line or a path between the device itself and a correspondent packet communication device to restore the communication, at least one of a topology modification notice pending step, in which the fact that the connection with the correspondent packet communication device being disconnected is not reported to the packet communication devices other than the correspondent packet communication device for a prescribed time, and a path restoration step, in which path setting signaling is performed to trigger cooperation of the path communication device and the correspondent packet communication device to set the protection path within the prescribed time, is executed together with a virtual interface setting modification step in which a virtual interface used for the path disconnected by the failure is set to the protection path.

2. 发明授权

US07961644B2 Communication node apparatus, communication system, and path resource assignment method 有权
标题翻译：通信节点设备，通信系统和路径资源分配方法
公开(公告)号：US07961644B2
公开(公告)日：2011-06-14
申请号：US12443917
申请日：2007-10-05
申请人： Yoshiaki Sone , Wataru Imajyuku , Naohide Nagatsu , Yukio Tsukishima , Kazuhisa Yamada , Atsushi Taniguchi
发明人： Yoshiaki Sone , Wataru Imajyuku , Naohide Nagatsu , Yukio Tsukishima , Kazuhisa Yamada , Atsushi Taniguchi
IPC分类号： G01R31/08
CPC分类号： H04L45/00 , H04L45/245 , H04L45/28 , H04L47/125 , H04L47/41 , Y02D50/30
摘要： In a communication system, including a plurality of communication node apparatuses, for establishing a path for communication by exchanging a message among the plurality of communication node apparatuses, before establishing a path, an identifier of a path for which reuse of resources of the path to be established is permitted or inhibited is determined, and the determined identification information is included in a control message so that the path is established. A communication node apparatus in which the path has been established determines availability of reuse of resources the path based on the identification information in the control message. When an event such as failure occurrence, occurrence of resource reuse or dissolution of resource reuse occurs, the communication node apparatus executes path priority change processing, so that priority can be changed such that resource reuse can be performed most efficiently.
摘要翻译：在包括多个通信节点装置的通信系统中，在建立路径之前，通过在多个通信节点装置之间交换消息来建立通信路径，将路径的资源重用的路径的标识符确定被允许或禁止被建立，并且所确定的识别信息被包括在控制消息中，使得建立路径。已经建立了路径的通信节点装置基于控制消息中的识别信息来确定资源的再利用的可用性。当发生诸如故障发生，资源重用或资源重用的发生的事件发生时，通信节点设备执行路径优先级改变处理，使得可以改变优先级，使得可以最有效地执行资源重用。

3. 发明申请

US20100208584A1 COMMUNICATION NODE APPARATUS, COMMUNICATION SYSTEM, AND PATH RESOURCE ASSIGNMENT METHOD 有权
标题翻译：通信节点设备，通信系统和路径资源分配方法
公开(公告)号：US20100208584A1
公开(公告)日：2010-08-19
申请号：US12443917
申请日：2007-10-05
申请人： Yoshiaki Sone , Wataru Imajyuku , Naohide Nagatsu , Yukio Tsukishima , Kazuhisa Yamada , Atsushi Taniguchi
发明人： Yoshiaki Sone , Wataru Imajyuku , Naohide Nagatsu , Yukio Tsukishima , Kazuhisa Yamada , Atsushi Taniguchi
IPC分类号： H04L12/24 , H04L12/28
CPC分类号： H04L45/00 , H04L45/245 , H04L45/28 , H04L47/125 , H04L47/41 , Y02D50/30
摘要： In a communication system, including a plurality of communication node apparatuses, for establishing a path for communication by exchanging a message among the plurality of communication node apparatuses, before establishing a path, an identifier of a path for which reuse of resources of the path to be established is permitted or inhibited is determined, and the determined identification information is included in a control message so that the path is established. A communication node apparatus in which the path has been established determines availability of reuse of resources the path based on the identification information in the control message. When an event such as failure occurrence, occurrence of resource reuse or dissolution of resource reuse occurs, the communication node apparatus executes path priority change processing, so that priority can be changed such that resource reuse can be performed most efficiently.
摘要翻译：在包括多个通信节点装置的通信系统中，在建立路径之前，通过在多个通信节点装置之间交换消息来建立通信路径，将路径的资源重用的路径的标识符确定被允许或禁止被建立，并且所确定的识别信息被包括在控制消息中，使得建立路径。已经建立了路径的通信节点装置基于控制消息中的识别信息来确定资源的再利用的可用性。当发生诸如故障发生，资源重用或资源重用的发生的事件发生时，通信节点设备执行路径优先级改变处理，使得可以改变优先级，使得可以最有效地执行资源重用。

4. 发明授权

US06626590B1 Optical communication network 失效
标题翻译：光通信网络
公开(公告)号：US06626590B1
公开(公告)日：2003-09-30
申请号：US09455463
申请日：1999-12-06
申请人： Naohide Nagatsu , Masafumi Koga
发明人： Naohide Nagatsu , Masafumi Koga
IPC分类号： H04B1020
CPC分类号： H04Q11/0062 , H04J14/0205 , H04J14/0212 , H04J14/0217 , H04J14/0219 , H04J14/0283 , H04J14/0295 , H04Q11/0071 , H04Q2011/0015 , H04Q2011/0018 , H04Q2011/0081
摘要： A wavelength division multiplexing ring network is constructed using a simple architecture and a fewer number of hardwares between the nodes compared with the conventional ring network. Each node is structured so that any number of multiple waves can be processed, and a fault in the network or within a node is resolved by providing a path-based protection so that switching can be performed without disrupting other nodes or even within one node. The network uses two or four lines of optical fibers, and a half of the fibers are used for communicating in a clockwise direction and a other half of the fibers are used for communicating in a counter-clockwise direction to form a logical network by optical paths contained in optical fibers so as to provide an equal number of relay nodes between two adjacent pairs of nodes throughout the network, where each node includes: multiple optical add/drop circuits; an optical path transmit end and an optical path receive end for freely selecting and outputting multiple combinations of wavelengths to be inserted in each node; and transmission lines provided between the optical add/drop circuits and the optical path transmit end, as well as between the optical add/drop circuits and the optical path receive end for transmitting any multiple waves to be processed within the node so as to establish mutual communication by transmitting processed multiple waves to other nodes. This network design enables to reduce the number of connections between the optical path transmit and receive ends, and also to reduce the number of optical signal op termination circuits.
摘要翻译：与传统的环网相比，使用简单的架构和节点之间的硬件数量来构建波分复用环网。每个节点被构造成使得可以处理任何数量的多个波，并且通过提供基于路径的保护来解决网络中或节点内的故障，使得可以在不中断其他节点或甚至在一个节点内执行切换。网络使用两条或四条光纤线，一半光纤用于沿顺时针方向通信，另一半光纤用于沿逆时针方向通信，以通过光路形成逻辑网络包括在光纤中，以便在整个网络中的两个相邻节点对之间提供相等数量的中继节点，其中每个节点包括：多个光学分插电路; 光路发送端和光路接收端，用于自由选择和输出要插入每个节点的波长的多个组合; 以及设置在光分插电路和光路发送端之间的传输线，以及在光分插电路和光路接收端之间，用于发送在节点内要处理的任何多个波，以便建立相互通过将处理后的多个波发送到其他节点进行通信。该网络设计能够减少光路发送端和接收端之间的连接数量，并且还减少光信号运算终端电路的数量。

5. 发明申请

US20090028043A1 Method for relieving failure, and packet communication device 有权
标题翻译：解决故障的方法和分组通信设备
公开(公告)号：US20090028043A1
公开(公告)日：2009-01-29
申请号：US11665303
申请日：2006-09-19
申请人： Yukio Tsukishima , Naohide Nagatsu , Atsushi Watanabe , Akira Hirano
发明人： Yukio Tsukishima , Naohide Nagatsu , Atsushi Watanabe , Akira Hirano
IPC分类号： H04L12/26 , H04L12/56
CPC分类号： H04L45/22 , H04L41/0663 , H04L41/0677 , H04L41/12 , H04L43/0811 , H04L45/02 , H04L45/26 , H04L45/28 , H04L45/50 , H04L45/56 , Y04S40/164 , Y04S40/166 , Y04S40/168
摘要： When a failure occurs on a path set between two packet communication devices, a protection path is set and the communication is recovered without having the effect of the path failure on devices other than the two packet communication devices. When a packet communication device detects a failure in a transmission line or a path between the device itself and a correspondent packet communication device to restore the communication, at least one of a topology modification notice pending step, in which the fact that the connection with the correspondent packet communication device being disconnected is not reported to the packet communication devices other than the correspondent packet communication device for a prescribed time, and a path restoration step, in which path setting signaling is performed to trigger cooperation of the path communication device and the correspondent packet communication device to set the protection path within the prescribed time, is executed together with a virtual interface setting modification step in which a virtual interface used for the path disconnected by the failure is set to the protection path.
摘要翻译：当在两个分组通信设备之间设置的路径上发生故障时，设置保护路径并恢复通信，而不会对两个分组通信设备之外的设备产生路径故障的影响。当分组通信设备检测到传输线路中的故障或设备本身与通信分组通信设备之间的路径以恢复通信时，拓扑修改通知等待步骤中的至少一个，其中与被断开的通信分组通信装置在规定时间内不向对方分组通信装置以外的分组通信装置报告，并且进行路径恢复步骤，其中进行路径设置信令以触发路径通信装置和通信对方的协作在规定时间内设定保护路径的分组通信装置与虚拟接口设定修改步骤一起执行，其中将用于由故障断开的路径的虚拟接口设置为保护路径。

6. 发明授权

US07313328B2 Node used in photonic network, and photonic network 失效
标题翻译：光子网络中使用的节点和光子网络
公开(公告)号：US07313328B2
公开(公告)日：2007-12-25
申请号：US10374053
申请日：2003-02-25
申请人： Eiji Oki , Wataru Imajuku , Kohei Shiomoto , Naoaki Yamanaka , Daisaku Shimazaki , Naohide Nagatsu , Yoshihiro Takikawa
发明人： Eiji Oki , Wataru Imajuku , Kohei Shiomoto , Naoaki Yamanaka , Daisaku Shimazaki , Naohide Nagatsu , Yoshihiro Takikawa
IPC分类号： H04J14/00 , H04B10/00
CPC分类号： H04Q11/0062 , H04Q11/0066 , H04Q11/0071 , H04Q2011/0086
摘要： A multi-layer photonic network and nodes used therein are provided. The multi-layer photonic network comprises a packet network which performs switching and transfer in packet units, and a photonic network comprising optical transmission lines and photonic switches, and which accommodates the packet network. The multi-layer photonic network also has a two layer structure of optical wavelength links (O-LSPs) and packet links (E-LSPs). The O-LSPs are constituted by the optical transmission lines and comprise optical wavelength switching capability (LSC) which is capable of switching in optical wavelength units and packet switching capability (PSC) which is capable of switching in packet units at both their ends. The E-LSPs include the O-LSPs and PSCs at both their ends. Each node includes a section for automatically establishing an O-LSP according to an establishment request for an E-LSP while taking account of path information including path cost, resource consumption, and traffic quantity.
摘要翻译：提供了多层光子网络和其中使用的节点。多层光网络包括以分组为单位执行切换和传送的分组网络，以及包括光传输线路和光子交换机并且容纳分组网络的光网络。多层光网络还具有光波长链路（O-LSP）和分组链路（E-LSP）两层结构。 O-LSP由光传输线构成，并且包括能够切换光波长单元的光波长切换能力（LSC）和能够在两端分组单元切换的分组交换能力（PSC）。 E-LSP包括两端的O-LSP和PSC。每个节点包括根据E-LSP的建立请求自动建立O-LSP的部分，同时考虑路径信息，包括路径开销，资源消耗和流量。

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