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。

公开(公告)号：US07333424B2

公开(公告)日：2008-02-19

申请号：US10382267

申请日：2003-03-05

申请人： Naoaki Yamanaka ,  Eiji Oki ,  Kohei Shiomoto ,  Satoru Okamoto ,  Wataru Imajuku

发明人： Naoaki Yamanaka ,  Eiji Oki ,  Kohei Shiomoto ,  Satoru Okamoto ,  Wataru Imajuku

IPC分类号： H04J1/16

CPC分类号： H04Q11/0062 ,  H04J14/0283 ,  H04J14/0284 ,  H04J14/0287 ,  H04Q2011/0077 ,  H04Q2011/0081 ,  H04Q2011/0088 ,  H04Q2011/009

摘要： An upper layer node is used in a multi-layer network which includes an upper layer network which performs switching and transfer in units of packets, and a lower layer network which includes optical transmission lines and optical switches and accommodate the upper layer network; this upper layer node being connected to the lower layer network which includes lower layer nodes including obstruction restoration sections, and transmission lines, and including: a section which detects the occurrence of an obstruction upon a transmission line which it accommodates; a section which advertises the detection result as obstruction information; a section which retains the topology information for the network; a section which updates the retained topology information according to advertised obstruction information, or obstruction information which it has detected; and an advertisement transfer section which advertises to other upper layer nodes the advertised obstruction information.

摘要翻译： 在多层网络中使用上层节点，该多层网络包括以分组为单位执行交换和传送的上层网络，以及包括光传输线路和光交换机并适应上层网络的下层网络; 该上层节点连接到下层网络，下层网络包括下层节点，包括障碍恢复部分和传输线路，并且包括：检测在其容纳的传输线路上发生障碍物的部分; 将检测结果通告为阻塞信息的部分; 保留网络拓扑信息的部分; 根据通知的障碍物信息更新所保留的拓扑信息的部分或其已经检测到的障碍物信息; 以及向其他上层节点通告广告障碍信息的广告传送部。

公开(公告)号：US20060018313A1

公开(公告)日：2006-01-26

申请号：US10533397

申请日：2004-03-24

申请人： Eiji Oki ,  Daisaku Shimazaki ,  Kohei Shiomoto ,  Naoaki Yamanaka

发明人： Eiji Oki ,  Daisaku Shimazaki ,  Kohei Shiomoto ,  Naoaki Yamanaka

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L45/50 ,  H04Q2011/0077

摘要： A network is realized having GMPLS and IP/MPLS mixed, in which an IP/MPLS node can be operated as is without replacing the IP/MPLS node with a node having a GMPLS function, even if the GMPLS and IP/MPLS are mixed. To match with the protocol of the IP/MPLS node outside of a GMPLS cloud, the GMPLS+IP/MPLS node (edge) establishes a PSC-LSP between GMPLS+IP/MPLS nodes (edge), uses the PSC-LSP as an IP/MPLS link from the viewpoint of the IP/MPLS node, and operates signaling of an MPLS-LSP establishment requested from the IP/MPLS.

摘要翻译： 实现了具有GMPLS和IP / MPLS混合的网络，其中IP / MPLS节点可以被操作，而不用具有GMPLS功能的节点替换IP / MPLS节点，即使混合了GMPLS和IP / MPLS。 为了与GMPLS云以外的IP / MPLS节点的协议相匹配，GMPLS + IP / MPLS节点（边缘）在GMPLS + IP / MPLS节点（边缘）之间建立PSC-LSP，使用PSC-LSP作为 从IP / MPLS节点的角度来看IP / MPLS链路，并且操作从IP / MPLS请求的MPLS-LSP建立信令。

公开(公告)号：US07978713B2

公开(公告)日：2011-07-12

申请号：US10533397

申请日：2004-03-24

申请人： Eiji Oki ,  Daisaku Shimazaki ,  Kohei Shiomoto ,  Naoaki Yamanaka

发明人： Eiji Oki ,  Daisaku Shimazaki ,  Kohei Shiomoto ,  Naoaki Yamanaka

IPC分类号： H04L12/28

CPC分类号： H04L45/00 ,  H04L45/50 ,  H04Q2011/0077

摘要： A network is realized having GMPLS and IP/MPLS mixed, in which an IP/MPLS node can be operated as is without replacing the IP/MPLS node with a node having a GMPLS function, even if the GMPLS and IP/MPLS are mixed. To match with the protocol of the IP/MPLS node outside of a GMPLS cloud, the GMPLS+IP/MPLS node (edge) establishes a PSC-LSP between GMPLS+IP/MPLS nodes (edge), uses the PSC-LSP as an IP/MPLS link from the viewpoint of the IP/MPLS node, and operates signaling of an MPLS-LSP establishment requested from the IP/MPLS.

摘要翻译： 实现了具有GMPLS和IP / MPLS混合的网络，其中IP / MPLS节点可以被操作，而不用具有GMPLS功能的节点替换IP / MPLS节点，即使混合了GMPLS和IP / MPLS。 为了与GMPLS云以外的IP / MPLS节点的协议相匹配，GMPLS + IP / MPLS节点（边缘）在GMPLS + IP / MPLS节点（边缘）之间建立PSC-LSP，使用PSC-LSP作为 从IP / MPLS节点的角度来看IP / MPLS链路，并且操作从IP / MPLS请求的MPLS-LSP建立信令。

公开(公告)号：US07289730B2

公开(公告)日：2007-10-30

申请号：US10417038

申请日：2003-04-16

申请人： Nobuaki Matsuura ,  Naoaki Yamanaka ,  Wataru Imajuku ,  Eiji Oki

发明人： Nobuaki Matsuura ,  Naoaki Yamanaka ,  Wataru Imajuku ,  Eiji Oki

IPC分类号： H04J14/08

CPC分类号： H04L47/724 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0283 ,  H04L47/70

摘要： A source node, along with transmitting an optical path setup request, notifies towards a destination node available resource information related to itself, pre-assigns the available resources which its own node has notified. Each of transit nodes, along with relaying towards the destination node the optical path setup request which has been received from a previous hop node, notifies towards the destination node available resource information related to itself, and pre-assigns the available resources which each of their own nodes has notified. The destination node, along with reserving a resource which is to be used for setting up an optical path based upon an optical path setup request which has been received, transmits a resource reservation request towards the source node. The transit nodes and the source node actually reserve an available resource which has been pre-assigned, based upon a resource reservation request from a next hop node.

摘要翻译： 源节点与发送光路建立请求一起向目的地节点通知与其自身相关的可用资源信息，预分配其自身节点已通知的可用资源。 每个传输节点以及向目的地节点传送已经从先前跳跃节点接收到的光路建立请求向目的地节点通知与其自身相关的可用资源信息，并且预分配可用资源， 自己的节点已通知。 目的地节点与基于已经接收的光路建立请求预留用于建立光路的资源一起向源节点发送资源预留请求。 传输节点和源节点基于来自下一跳节点的资源预留请求，实际上预留了已经预分配的可用资源。

公开(公告)号：US5892604A

公开(公告)日：1999-04-06

申请号：US852396

申请日：1997-05-07

申请人： Naoaki Yamanaka ,  Kohei Shiomoto ,  Eiji Oki ,  Seisho Yasukawa

发明人： Naoaki Yamanaka ,  Kohei Shiomoto ,  Eiji Oki ,  Seisho Yasukawa

IPC分类号： H04Q3/00 ,  H04L12/931 ,  H04Q3/52 ,  H04Q11/00 ,  H04J14/02

CPC分类号： H04L12/5601 ,  H04L49/256 ,  H04Q11/0001 ,  H04L2012/5605 ,  H04L2012/5672

摘要： An ATM switch includes a plurality of input line corresponding units, a plurality of output line corresponding units, and a wavelength shifting unit. The wavelength shifting unit is arranged between the input line corresponding units and the output line corresponding units to shift optical signals having different wavelengths in a plurality of wavelength-multiplexed optical signals arriving from the input line corresponding units and output the wavelength-multiplexed optical signals. Each input line corresponding unit includes an input-side basic switch for distributing N (N is a positive integer) cells respectively input to input ports to N lines, an electro-optic converter for converting the cells into optical signals having different wavelengths in units of N lines, and a multiplexer for multiplexing the optical signals into one wavelength-multiplexed optical signal. Each output line corresponding unit includes a demultiplexer for demultiplexing the wavelength-multiplexed optical signal in units of wavelengths, an opto-electric converter for converting outputs from the demultiplexer into electrical signals, respectively, and an output-side basic switch for distributing the cells converted into the electrical signals to a plurality of output ports.

摘要翻译： ATM开关包括多个输入线对应单元，多个输出线对应单元和波长移位单元。 波长移位单元布置在输入线对应单元和输出线对应单元之间，以在从输入线对应单元到达的多个波长复用光信号中移位具有不同波长的光信号，并输出波长复用光信号。 每个输入线对应单元包括用于分配分别输入到N行的输入端口的N（N是正整数）单元的输入侧基本开关，用于将单元转换成具有不同波长的光信号的电光转换器，单元为 N线，以及用于将光信号复用为一个波分复用光信号的多路复用器。 每个输出线对应单元包括用于以波长为单位解复用波分复用光信号的解复用器，用于将从解复用器输出分别转换为电信号的光电转换器和用于分配转换的单元的输出侧基本开关 将电信号转换成多个输出端口。

公开(公告)号：US07263289B2

公开(公告)日：2007-08-28

申请号：US10284744

申请日：2002-10-31

申请人： Kohei Shiomoto ,  Naoaki Yamanaka ,  Eiji Oki

发明人： Kohei Shiomoto ,  Naoaki Yamanaka ,  Eiji Oki

IPC分类号： H04J14/00

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/005 ,  H04Q2011/0064 ,  H04Q2011/0073

摘要： The present invention relates to a node used in an optical communication network, and comprises functions for transferring and receiving data, and a unit for establishing and releasing a cut through path to a node of the next stage, the establishing and releasing unit having a detecting unit which detects the arrival of a request packet for establishing a cut through path to the node stage.

摘要翻译： 本发明涉及在光通信网络中使用的节点，并且包括用于传送和接收数据的功能，以及用于建立和释放到下一级节点的切入路径的单元，所述建立和释放单元具有检测 单元，其检测用于建立到节点级的切入路径的请求分组的到达。

公开(公告)号：US07200330B2

公开(公告)日：2007-04-03

申请号：US10285388

申请日：2002-10-31

申请人： Kohei Shiomoto ,  Naoaki Yamanaka ,  Eiji Oki

发明人： Kohei Shiomoto ,  Naoaki Yamanaka ,  Eiji Oki

IPC分类号： H04J14/00

CPC分类号： H04Q11/0066 ,  H04Q11/0005 ,  H04Q2011/005 ,  H04Q2011/0064 ,  H04Q2011/0073

摘要： The present invention relates to a node which is used in the structure of an optical communication network. This node has a signal transmission function for performing data transfer and a signal receiving function for performing data signal reception, and includes a unit for establishing and releasing a cut through path to a next stage node. Moreover, it includes a unit for detecting the arrival of a leading packet of burst data, and the unit for establishing and releasing the cut through path includes a unit for establishing a cut through path to the next stage node, when the arrival of a leading packet of burst data is detected by the leading packet arrival detection unit.

摘要翻译： 本发明涉及一种在光通信网络的结构中使用的节点。 该节点具有用于执行数据传送的信号传输功能和用于执行数据信号接收的信号接收功能，并且包括用于建立和释放到下一级节点的切断路径的单元。 此外，它包括用于检测突发数据的前导分组的到达的单元，并且用于建立和释放切入路径的单元包括用于建立到下一级节点的切入路径的单元，当到达前导 前导分组到达检测单元检测到突发数据的分组。

公开(公告)号：US07545829B2

公开(公告)日：2009-06-09

申请号：US10678298

申请日：2003-10-03

申请人： Daisaku Shimazaki ,  Eiji Oki ,  Naoaki Yamanaka

发明人： Daisaku Shimazaki ,  Eiji Oki ,  Naoaki Yamanaka

IPC分类号： H04J140/00

CPC分类号： H04L47/825 ,  H04L41/00 ,  H04L43/0811 ,  H04L45/02 ,  H04L45/04 ,  H04L45/34 ,  H04L45/50 ,  H04L45/62 ,  H04L45/64 ,  H04L47/745 ,  H04L47/822

摘要： A layered network node of which a network it belongs is divided up into cells which are constituted by a plurality of nodes; the cells are defined as virtual nodes; if links exist which connect the interiors of the virtual nodes and the exterior, contact points between them are defined as interfaces of the virtual nodes; the virtual network constituted by the virtual nodes is further divided up into cells and making them into virtual nodes; said virtual network is defined as a network of a higher level with respect to the initial virtual network; by performing said operation of division into cells and making into virtual nodes once or a plurality of times, the layered network is constituted; path computation is performed from the source node to a destination node in a stepwise manner by dispersing it over the various layers.

摘要翻译： 将其所属的网络的分层网络节点划分为由多个节点构成的小区; 单元被定义为虚拟节点; 如果存在连接虚拟节点和外部内部的链接，则它们之间的接触点被定义为虚拟节点的接口; 由虚拟节点构成的虚拟网络进一步划分为小区，使其成为虚拟节点; 所述虚拟网络被定义为相对于初始虚拟网络的更高级别的网络; 通过执行划分为小区的操作并使其成为虚拟节点一次或多次，构成分层网络; 通过将其分散在各个层上，以逐步方式从源节点到目的地节点执行路径计算。

公开(公告)号：US07457240B2

公开(公告)日：2008-11-25

申请号：US10335344

申请日：2002-12-31

申请人： Eiji Oki ,  Daisaku Shimazaki ,  Naoaki Yamanaka

发明人： Eiji Oki ,  Daisaku Shimazaki ,  Naoaki Yamanaka

IPC分类号： H04L12/28

CPC分类号： H04L45/02 ,  H04L43/00 ,  H04L43/0811 ,  H04L43/0817 ,  H04L43/0876 ,  H04L43/16 ,  H04L45/12 ,  H04L45/32

摘要： The present invention relates to a node, a packet communication network, and a packet communication method and program. The node of the present invention is one which includes a section which advertises to other nodes link state information which indicates the state of links which are connected to this node, a section which establishes a packet forwarding path according to the link state information which is included in the advertisement by the advertisement section, and a traffic observation section which observes the traffic and outputs its observations as traffic observation results.

摘要翻译： 本发明涉及节点，分组通信网络和分组通信方法和程序。 本发明的节点是包括向其他节点通告的部分，链接状态信息指示连接到该节点的链路的状态，根据包括的链路状态信息建立分组转发路径的部分 在广告部的广告中，以及观测交通并将其观察结果作为交通观察结果输出的交通观察部。