公开(公告)号：US07657180B2

公开(公告)日：2010-02-02

申请号：US11480847

申请日：2006-07-06

申请人： Keiji Miyazaki ,  Yasuki Fujii ,  Shinya Kanoh ,  Akira Nagata

发明人： Keiji Miyazaki ,  Yasuki Fujii ,  Shinya Kanoh ,  Akira Nagata

IPC分类号： H04J14/02

CPC分类号： H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0284

摘要： The present invention relates to a communication path calculation method and module. More particularly, the present invention provides a communication path calculation method and module that are implemented or incorporated in a transmission apparatus including a ROADM or the like which performs WDM communication, advertises information on a wavelength which can be added or dropped, as information on a link, and uses the information to autonomously calculate a communication path. Optical transmission equipment that is accommodated in a WDM network over which a wavelength-division multiplexed signal is transferred includes a reconfigurable OADM module. For calculation of a communication path, the OADM module creates a link table listing clients of the own equipment and connected WDMs, and advertises the link table to the other pieces of equipment accommodated by the network as pieces of information on restrictions to be imposed on routing from the own equipment. The other pieces of equipment each receive and store the advertised pieces of information on restrictions to be imposed on routing, and use the pieces of information as pieces of information on restrictions to be imposed on a calculation to calculate a communication path from the own equipment.

摘要翻译： 本发明涉及通信路径计算方法和模块。 更具体地，本发明提供一种通信路径计算方法和模块，其被实现或并入到包括执行WDM通信的ROADM等的发送装置中，将关于可以添加或丢弃的波长的信息通告作为关于 链接，并使用信息自主计算通信路径。 容纳在传送波分复用信号的WDM网络中的光传输设备包括可重新配置的OADM模块。 为了计算通信路径，OADM模块创建列出自身设备和连接的WDM的客户端的链路表，并将链路表通告给网络所容纳的其他设备作为要施加在路由上的限制的信息 从自己的设备。 其他设备各自接收并存储关于路由限制的通告信息，并且将这些信息用作关于限制的信息作为计算来计算来自自身设备的通信路径的信息。

公开(公告)号：US20070230961A1

公开(公告)日：2007-10-04

申请号：US11471593

申请日：2006-06-21

申请人： Akira Nagata ,  Keiji Miyazaki ,  Shinya Kanoh ,  Yasuki Fujii

发明人： Akira Nagata ,  Keiji Miyazaki ,  Shinya Kanoh ,  Yasuki Fujii

IPC分类号： H04J14/02

CPC分类号： H04J14/0283 ,  H04J14/0212 ,  H04J14/0217 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/028

摘要： A relay node used in a WDM optical network is disclosed. The relay node includes: a high-speed side port configured to send and receive a high-speed signal; a low-speed side port configured to send and receive a low-speed signal; a unit configured to generates a checking message for requesting another node to report constraint information of a low-speed side port of the another node, wherein the constraint information relates to adding an optical signal from the low-speed side port to a high-speed side port of the another node or dropping an optical signal from the high-speed side port to the low-speed side port of the another node; a unit configured to generate a response message including the constraint information of the own node in response to receiving the checking message sent from the another node; and a storing unit configured to store at least the constraint information of the another node.

摘要翻译： 公开了一种在WDM光网络中使用的中继节点。 中继节点包括：高速侧端口，被配置为发送和接收高速信号; 配置为发送和接收低速信号的低速侧端口; 被配置为生成用于请求另一节点报告另一节点的低速侧端口的约束信息的检查消息的单元，其中所述约束信息涉及将来自所述低速侧端口的光信号添加到高速侧端口 或者将来自高速侧端口的光信号丢弃到另一节点的低速侧端口; 响应于接收到从另一个节点发送的检查消息，生成包括自身节点的约束信息的响应消息的单元; 以及存储单元，被配置为至少存储另一个节点的约束信息。

公开(公告)号：US20070212068A1

公开(公告)日：2007-09-13

申请号：US11504741

申请日：2006-08-15

申请人： Keiji Miyazaki ,  Yasuki Fujii ,  Shinya Kanoh ,  Akira Nagata

发明人： Keiji Miyazaki ,  Yasuki Fujii ,  Shinya Kanoh ,  Akira Nagata

IPC分类号： H04J14/00

CPC分类号： H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0284 ,  H04J14/0286

摘要： A path routing computation method enables reduction of the memory capacity for path routing computation. The method is characterized in that a wavelength convertible subnetwork in which paths are connected in a mesh form; a first and second wavelength inconvertible subnetworks have a starting point node and an end point node, respectively, and include a plurality of nodes and connected via the wavelength convertible subnetwork, and out of the nodes constituting the first and second wavelength inconvertible subnetworks, a node has a port connected to the wavelength convertible subnetwork is defined as a border node, and the method includes the steps of: obtaining, for the first wavelength inconvertible subnetwork, a path from the starting point node to a border node in the first subnetwork; and obtaining, for the second wavelength inconvertible subnetwork, a path from the end point node to a border node in the second wavelength inconvertible subnetwork.

摘要翻译： 路径路由计算方法能够减少路径路由计算的存储容量。 该方法的特征在于其中路径以网格形式连接的波长可转换子网络; 第一和第二波长不可逆子网分别具有起点节点和终点节点，并且包括多个节点并且经由波长可转换子网络连接，并且在构成第一和第二波长不可逆子网络的节点之外，节点 将连接到所述波长可转换子网络的端口定义为边界节点，并且所述方法包括以下步骤：为所述第一波长不可转换子网获得从所述起始点节点到所述第一子网络中的边界节点的路径; 以及为所述第二波长不可逆子网获得从所述端点节点到所述第二波长不可逆子网中的边界节点的路径。

公开(公告)号：US07188280B2

公开(公告)日：2007-03-06

申请号：US09942217

申请日：2001-08-29

申请人： Norihiko Shinomiya ,  Keiji Miyazaki ,  Yasuki Fujii

发明人： Norihiko Shinomiya ,  Keiji Miyazaki ,  Yasuki Fujii

IPC分类号： G06F11/00

CPC分类号： H04L29/06 ,  H04L69/14

摘要： A protecting route design method is disclosed for a communication network including a plurality of nodes having preset information on a protecting route to switch over in parallel from a working route thereto when link or node failure occurs, according to a failure notification message including failure location information being transmitted from a failure detection node to each node. The protecting route design method includes the steps of searching a protecting route which can minimize a transfer time of the failure notification message from the failure detection node; and then, updating the searched protecting route to a protecting route having a spare communication capacity sharable for a different failure and having a route switchover time to be completed within a given time limit.

摘要翻译： 公开了一种通信网络的保护路径设计方法，该通信网络包括具有预定信息的多个节点，所述多个节点具有保护路由，以便在链路或节点故障发生时从工作路由并行切换，根据包括故障位置信息的故障通知消息 从故障检测节点发送到每个节点。 所述保护路径设计方法包括以下步骤：搜索可以使所述故障通知消息从所述故障检测节点的传送时间最小化的保护路由; 然后将搜索到的保护路由更新为具有针对不同故障可共享的备用通信容量并在给定时间内完成路由切换时间的保护路由。

公开(公告)号：US08520685B2

公开(公告)日：2013-08-27

申请号：US11700095

申请日：2007-01-31

申请人： Akira Nagata ,  Keiji Miyazaki ,  Shinya Kano ,  Yasuki Fujii

发明人： Akira Nagata ,  Keiji Miyazaki ,  Shinya Kano ,  Yasuki Fujii

IPC分类号： H04L12/56

CPC分类号： H04L45/62 ,  H04J14/0201 ,  H04J14/0227 ,  H04J14/0245 ,  H04J14/0249 ,  H04J14/028 ,  H04J14/0283 ,  H04J14/0284 ,  H04L45/12 ,  H04L45/122

摘要： A ROADM device generates link information including a virtual link in which a first link that is used by a node apparatus for transmitting a signal and a second link of a ROADM device that is capable of branching a signal transmitted via the first link when the signal is transmitted via a WDM network are virtually connected each other, and transmits the generated link information.

摘要翻译： ROADM设备生成包括虚拟链路的链路信息，其中由用于发送信号的节点设备使用的第一链路和ROADM设备的第二链路，其能够分支当信号为第一链路时经由第一链路发送的信号 通过WDM网络发送的数据被虚拟地相互连接，并发送生成的链接信息。

公开(公告)号：US08068506B2

公开(公告)日：2011-11-29

申请号：US12560551

申请日：2009-09-16

申请人： Yasuki Fujii ,  Shinya Kano ,  Kouichirou Amemiya

发明人： Yasuki Fujii ,  Shinya Kano ,  Kouichirou Amemiya

IPC分类号： H04L12/46

CPC分类号： H04L45/34 ,  H04L45/10 ,  Y10T409/40105

摘要： A signaling apparatus is applied to a node constituting a network including internal network to network interface (INNI) domains having INNI interfaces between a plurality of networks in an area and external network to network interface (ENNI) domains having ENNI interfaces that connect the INNI domains. The apparatus includes a processing unit that processes a signaling message for setting a path when an end-to-end path that passes through the INNI domains and the ENNI domains that connect the INNI domains is set in response to the signaling message, a storing unit that holds information on types of links between an own node and adjacent nodes, and a judging unit that judges whether the own node is a connection end point of the INNI domains or the ENNI domains with reference to route information in the message and the information on the types of the links held in the storing unit.

摘要翻译： 信令装置被应用于构成网络的节点，该节点包括具有在区域中的多个网络之间的INNI接口的网络接口（INNI）域的内部网络，以及具有连接INNI域的具有ENNI接口的网络接口（ENNI）域 。 所述装置包括：处理单元，响应于所述信令消息，当经过所述INNI域的端到端路径和连接所述INNI域的ENNI域被设置时，处理用于设置路径的信令消息;存储单元 其保存关于自身节点和相邻节点之间的链接类型的信息，以及判断单元，其参考消息中的路由信息​​来判断自身节点是INNI域还是ENNI域的连接终点，以及关于 保存在存储单元中的链接的类型。

公开(公告)号：US07706690B2

公开(公告)日：2010-04-27

申请号：US11471593

申请日：2006-06-21

申请人： Akira Nagata ,  Keiji Miyazaki ,  Shinya Kanoh ,  Yasuki Fujii

发明人： Akira Nagata ,  Keiji Miyazaki ,  Shinya Kanoh ,  Yasuki Fujii

IPC分类号： H04J14/02

CPC分类号： H04J14/0283 ,  H04J14/0212 ,  H04J14/0217 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/028

摘要： A relay node used in a WDM optical network is disclosed. The relay node includes: a high-speed side port configured to send and receive a high-speed signal; a low-speed side port configured to send and receive a low-speed signal; a unit configured to generates a checking message for requesting another node to report constraint information of a low-speed side port of the another node, wherein the constraint information relates to adding an optical signal from the low-speed side port to a high-speed side port of the another node or dropping an optical signal from the high-speed side port to the low-speed side port of the another node; a unit configured to generate a response message including the constraint information of the own node in response to receiving the checking message sent from the another node; and a storing unit configured to store at least the constraint information of the another node.

摘要翻译： 公开了一种在WDM光网络中使用的中继节点。 中继节点包括：高速侧端口，被配置为发送和接收高速信号; 配置为发送和接收低速信号的低速侧端口; 被配置为生成用于请求另一节点报告另一节点的低速侧端口的约束信息的检查消息的单元，其中所述约束信息涉及将来自所述低速侧端口的光信号添加到高速侧端口 或者将来自高速侧端口的光信号丢弃到另一节点的低速侧端口; 响应于接收到从另一个节点发送的检查消息，生成包括自身节点的约束信息的响应消息的单元; 以及存储单元，被配置为至少存储另一个节点的约束信息。

公开(公告)号：US07653308B2

公开(公告)日：2010-01-26

申请号：US11504741

申请日：2006-08-15

申请人： Keiji Miyazaki ,  Yasuki Fujii ,  Shinya Kanoh ,  Akira Nagata

发明人： Keiji Miyazaki ,  Yasuki Fujii ,  Shinya Kanoh ,  Akira Nagata

IPC分类号： H04J14/00

CPC分类号： H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0284 ,  H04J14/0286

摘要： A path routing computation method enables reduction of the memory capacity for path routing computation. The method is characterized in that a wavelength convertible subnetwork in which paths are connected in a mesh form; a first and second wavelength inconvertible subnetworks have a starting point node and an end point node, respectively, and include a plurality of nodes and connected via the wavelength convertible subnetwork, and out of the nodes constituting the first and second wavelength inconvertible subnetworks, a node has a port connected to the wavelength convertible subnetwork is defined as a border node, and the method includes the steps of: obtaining, for the first wavelength inconvertible subnetwork, a path from the starting point node to a border node in the first subnetwork; and obtaining, for the second wavelength inconvertible subnetwork, a path from the end point node to a border node in the second wavelength inconvertible subnetwork.

摘要翻译： 路径路由计算方法能够减少路径路由计算的存储容量。 该方法的特征在于其中路径以网格形式连接的波长可转换子网络; 第一和第二波长不可逆子网分别具有起点节点和终点节点，并且包括多个节点并且经由波长可转换子网络连接，并且在构成第一和第二波长不可逆子网络的节点之外，节点 将连接到所述波长可转换子网络的端口定义为边界节点，并且所述方法包括以下步骤：为所述第一波长不可转换子网获得从所述起始点节点到所述第一子网络中的边界节点的路径; 以及为所述第二波长不可逆子网获得从所述端点节点到所述第二波长不可逆子网中的边界节点的路径。

公开(公告)号：US20070212067A1

公开(公告)日：2007-09-13

申请号：US11480847

申请日：2006-07-06

申请人： Keiji Miyazaki ,  Yasuki Fujii ,  Shinya Kanoh ,  Akira Nagata

发明人： Keiji Miyazaki ,  Yasuki Fujii ,  Shinya Kanoh ,  Akira Nagata

IPC分类号： H04J14/00

CPC分类号： H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0284

摘要： The present invention relates to a communication path calculation method and module. More particularly, the present invention provides a communication path calculation method and module that are implemented or incorporated in a transmission apparatus including a ROADM or the like which performs WDM communication, advertises information on a wavelength which can be added or dropped, as information on a link, and uses the information to autonomously calculate a communication path. Optical transmission equipment that is accommodated in a WDM network over which a wavelength-division multiplexed signal is transferred includes a reconfigurable OADM module. For calculation of a communication path, the OADM module creates a link table listing clients of the own equipment and connected WDMs, and advertises the link table to the other pieces of equipment accommodated by the network as pieces of information on restrictions to be imposed on routing from the own equipment. The other pieces of equipment each receive and store the advertised pieces of information on restrictions to be imposed on routing, and use the pieces of information as pieces of information on restrictions to be imposed on a calculation to calculate a communication path from the own equipment.

摘要翻译： 本发明涉及通信路径计算方法和模块。 更具体地，本发明提供一种通信路径计算方法和模块，其被实现或并入到包括执行WDM通信的ROADM等的发送装置中，将关于可以添加或丢弃的波长的信息通告作为关于 链接，并使用信息自主计算通信路径。 容纳在传送波分复用信号的WDM网络中的光传输设备包括可重新配置的OADM模块。 为了计算通信路径，OADM模块创建列出自身设备和连接的WDM的客户端的链路表，并将链路表通告给网络所容纳的其他设备作为要施加在路由上的限制的信息 从自己的设备。 其他设备各自接收并存储关于路由限制的通告信息，并且将这些信息用作关于限制的信息作为计算来计算来自自身设备的通信路径的信息。

公开(公告)号：US06189025B1

公开(公告)日：2001-02-13

申请号：US09115371

申请日：1998-07-14

申请人： Takao Ogura ,  Yasuki Fujii ,  Kohei Iseda ,  Takafumi Chujo ,  Masaaki Ueki

发明人： Takao Ogura ,  Yasuki Fujii ,  Kohei Iseda ,  Takafumi Chujo ,  Masaaki Ueki

IPC分类号： G06F1516

CPC分类号： H04Q11/0478 ,  H04J2203/0057 ,  H04J2203/0066 ,  H04J2203/0067 ,  H04L41/0816

摘要： A communication network comprised of communication paths of server layers formed hierarchically by communication paths of client layers, wherein the state of control of the communication paths of a layer being controlled is independently managed in terms of both (i) an administrative state and (ii) a subordinate state indicating influence from communication paths of a server layer, the administrative state of the communication paths of the layer being controlled is changed according to the control for setting and releasing the communication paths, and the subordinate state of the communication paths of a client layer influenced by the change of the administrative state of the communication paths is changed accordingly. At this time, when a subordinate state has already been influenced by a state of control of the communication paths of a server layer, the processing for management is terminated.

摘要翻译： 包括由客户层的通信路径分层形成的服务器层的通信路径的通信网络，其中被管理层的通信路径的控制状态是以（i）管理状态和（ii） 指示对服务器层的通信路径的影响的从属状态，根据用于设置和释放通信路径的控制以及客户端的通信路径的从属状态来改变被控制的层的通信路径的管理状态 受通信路径管理状态变化影响的层次相应地发生变化。 此时，当下属状态已经受到服务器层的通信路径的控制状态的影响时，终止管理处理。