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：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：US07626924B2

公开(公告)日：2009-12-01

申请号：US11243871

申请日：2005-10-05

申请人： Akira Nagata ,  Shinya Kanoh ,  Keiji Miyazaki

发明人： Akira Nagata ,  Shinya Kanoh ,  Keiji Miyazaki

IPC分类号： G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04L45/50 ,  H04J3/14 ,  H04L43/0811 ,  H04L45/22 ,  H04L45/28

摘要： In a network having a main route and a protection route, a branch node reflects label limit information for the main route into the label limit information for the protection route, and allocates to the main route, a label related to the label for the protection route. On the other hand, a merge node reflects label limit information for the protection route into the label limit information for the main route, and allocates to the protection route, a label related to the label for the main route. Thus, labels having a relation can be allocated to the main route and the protection route.

摘要翻译： 在具有主路由和保护路由的网络中，分支节点将用于主路由的标签限制信息反映到用于保护路由的标签限制信息中，并且向主路由分配与保护路由的标签相关的标签 。 另一方面，合并节点将保护路由的标签限制信息反映到主路由的标签限制信息中，并且向保护路由分配与主路由的标签相关的标签。 因此，具有关系的标签可以分配给主路线和保护路线。

公开(公告)号：US20060221816A1

公开(公告)日：2006-10-05

申请号：US11243871

申请日：2005-10-05

申请人： Akira Nagata ,  Shinya Kanoh ,  Keiji Miyazaki

发明人： Akira Nagata ,  Shinya Kanoh ,  Keiji Miyazaki

IPC分类号： H04J3/14 ,  H04L12/56 ,  H04J1/16 ,  H04L12/28

CPC分类号： H04L45/50 ,  H04J3/14 ,  H04L43/0811 ,  H04L45/22 ,  H04L45/28

摘要： In a network having a main route and a protection route, a branch node reflects label limit information for the main route into the label limit information for the protection route, and allocates to the main route, a label related to the label for the protection route. On the other hand, a merge node reflects label limit information for the protection route into the label limit information for the main route, and allocates to the protection route, a label related to the label for the main route. Thus, labels having a relation can be allocated to the main route and the protection route.