公开(公告)号：US09049266B2

公开(公告)日：2015-06-02

申请号：US13801667

申请日：2013-03-13

申请人： Clarence Filsfils ,  Ornan Alexander Gerstel ,  Gabriele Maria Galimberti ,  Jean-Philippe Vasseur ,  David Delano Ward ,  Walid Wakim

发明人： Clarence Filsfils ,  Ornan Alexander Gerstel ,  Gabriele Maria Galimberti ,  Jean-Philippe Vasseur ,  David Delano Ward ,  Walid Wakim

IPC分类号： H04J14/00 ,  H04L29/06 ,  H04L12/54 ,  H04L12/723 ,  H04Q11/00

CPC分类号： H04B10/27 ,  H04B10/25 ,  H04J14/0267 ,  H04L45/128 ,  H04L45/50 ,  H04L67/42 ,  H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0077

摘要： In one embodiment, a network server layer provides disjoint channels in response to client-layer disjoint path requests. For example, the network layer can be an optical network, and the client layer may be a packet switching layer (e.g., label switching, Internet Protocol). In one embodiment, a server-layer node receives a client-layer disjoint path request to provide a server-layer channel through a server-layer network. The client-layer disjoint path request includes an identifier corresponding to an existing client-layer path that traverses a current channel through the server-layer network that does not include the server-layer node. The server-layer network determines a particular channel through the server-layer network that is disjoint to the current channel based on route information of the current channel, and then signaling is performed within the server-layer network to establish the particular channel.

摘要翻译： 在一个实施例中，网络服务器层响应于客户端层不相交路径请求而提供不相交的信道。 例如，网络层可以是光网络，并且客户端层可以是分组交换层（例如，标签交换，因特网协议）。 在一个实施例中，服务器层节点接收客户端层不相交路径请求，以通过服务器层网络提供服务器层信道。 客户端层不相交路径请求包括对应于穿过不包括服务器层节点的服务器层网络的当前信道的现有客户端层路径的标识符。 服务器层网络基于当前信道的路由信息​​，通过服务器层网络确定与当前信道不相关的特定信道，然后在服务器层网络内执行信令以建立特定信道。

公开(公告)号：US20150131991A1

公开(公告)日：2015-05-14

申请号：US14407716

申请日：2013-06-13

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Kyota Hattori ,  Naoki Kimishima ,  Masahiro Nakagawa ,  Masaru Katayama ,  Akira Misawa

IPC分类号： H04Q11/00 ,  H04J14/02 ,  H04J14/08

CPC分类号： H04Q11/0005 ,  H04J3/0655 ,  H04J3/085 ,  H04J14/0212 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0283 ,  H04J14/0284 ,  H04J14/0286 ,  H04J14/08 ,  H04Q2011/0033 ,  H04Q2011/0045 ,  H04Q2011/005 ,  H04Q2011/0086 ,  H04Q2213/1301

摘要： An optical network system includes a master node and a plurality of optical switch nodes, allowing the number of nodes without depending on the number of wavelengths. The master node is configured to: divide a wavelength path having an arbitrary wavelength into time slots each having a predetermined time period; and allocate the time slots to each of the optical switch nodes. Each of the optical switch nodes is configured to: synchronize the time slots based on information delivered from the master node; and thereby transmit or receive a data or performs route switching.

摘要翻译： 光网络系统包括主节点和多个光交换节点，允许节点数不依赖于波长数。 主节点被配置为：将具有任意波长的波长路径划分成各自具有预定时间段的时隙; 并将时隙分配给每个光交换节点。 每个光交换节点被配置为：基于从主节点传递的信息来同步时隙; 从而发送或接收数据或执行路由切换。

公开(公告)号：US09031408B2

公开(公告)日：2015-05-12

申请号：US13157017

申请日：2011-06-09

申请人： Stefan Dahlfort ,  David Hood

发明人： Stefan Dahlfort ,  David Hood

IPC分类号： H04B10/20 ,  H04J14/02

CPC分类号： H04J14/0282 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/026 ,  H04J14/0267 ,  H04J14/0269

摘要： A method provides advertisements to optical network units (ONUs) by an optical line terminal (OLT), wherein the advertisements enable the ONUs to identify free channels from a plurality of wavelength-division multiplexing (WDM) channels in a passive optical network (PON). The method includes: transmitting from the OLT to the ONUs an advertisement identifying a free channel for each of a plurality of incompatible channel (ICH) groups, receiving a request from an ONU for the advertised free channel of an ICH group, authenticating the requesting ONU via the advertised free channel, allocating the advertised free channel to the requesting ONU upon successful authentication of the requesting ONU, and transmitting an updated advertisement from the OLT to the ONUs.

摘要翻译： 一种方法通过光线路终端（OLT）向光网络单元（ONU）提供广告，其中广告使得ONU能够从无源光网络（PON）中的多个波分复用（WDM）信道中识别自由信道， 。 该方法包括：从OLT向ONU发送识别多个不兼容信道（ICH）组中的每一个的空闲信道的广告，从ONU接收针对ICH组的通告空闲信道的请求，认证请求ONU 通过发布的自由频道，在请求的ONU成功认证后将所通告的空闲信道分配给请求的ONU，并将更新的广告从OLT发送到ONU。

公开(公告)号：US20150128223A1

公开(公告)日：2015-05-07

申请号：US14406907

申请日：2012-06-11

申请人： Roberto Magri ,  Giulio Bottari

发明人： Roberto Magri ,  Giulio Bottari

IPC分类号： H04L29/06

CPC分类号： H04L63/10 ,  H04J14/0267 ,  H04L45/42 ,  H04L63/1433 ,  H04L63/20

摘要： Path computation through nodes of a communications network to meet a desired security level against unauthorised physical access to the path, involves receiving a request (200) for selection of a new path, and using a record (210) of connectivity of the nodes and links with indications of a security level against unauthorised physical access to the path. This can enable the path routing to be made so as to assure a given level of security of the underlying hardware of nodes and links, in networks where not all parts can provide such security. Nodes can report their current security levels to update the record. A previously selected path can be validated by comparing indicated current security levels of the nodes of the path with the desired security level.

摘要翻译： 通过通信网络的节点进行路径计算以满足针对未经授权的物理访问路径的期望的安全级别，涉及接收用于选择新路径的请求（200），以及使用节点和链路的连接的记录（210） 具有防止未经授权的物理访问路径的安全级别的指示。 这可以使路径路由被做出，以便在网络中确保节点和链路的底层硬件的一定水平的安全性，而网络中的所有部分都不能提供这种安全性。 节点可以报告其当前的安全级别来更新记录。 可以通过将路径的节点的指示的当前安全级别与期望的安全级别进行比较来验证先前选择的路径。

公开(公告)号：US20150104170A1

公开(公告)日：2015-04-16

申请号：US14053527

申请日：2013-10-14

申请人： Telefonaktiebolaget L M Ericsson (Publ)

发明人： Ming Xia ,  Björn Skubic ,  Stefan Dahlfort

IPC分类号： H04J14/02 ,  H04Q11/00 ,  H04L12/24

CPC分类号： H04J14/0227 ,  H04J14/0202 ,  H04J14/0212 ,  H04J14/0267 ,  H04J14/0272 ,  H04J14/0278 ,  H04L41/0213 ,  H04L41/0806 ,  H04L41/12 ,  H04L43/0811 ,  H04L43/0817 ,  H04L43/0841 ,  H04L43/10 ,  H04Q11/0005 ,  H04Q2011/0037 ,  H04Q2011/0052

摘要： A method for automatic topology discovery implemented in a wavelength division multiplexing (WDM) network is disclosed. The WDM network contains a number of wavelength switching devices, and the method starts with selecting an unassigned wavelength between a pair of wavelength switching devices. For a first port of a first wavelength switching device, a pass through state is configured between the first port and a coupling port of the first wavelength switching device, and a first probing signal is sent at the unassigned wavelength to the first wavelength switching device. The method continues with detecting iteratively the first probing signal at the unassigned wavelength through each of a set of ports of a second wavelength switching device during a time period, and recording a connection between the first port of the first wavelength switching device and a port of the second wavelength switching devices when the first probing signal is detected.

摘要翻译： 公开了一种在波分复用（WDM）网络中实现的自动拓扑发现的方法。 WDM网络包含多个波长切换装置，该方法开始于在一对波长切换装置之间选择未分配的波长。 对于第一波长切换装置的第一端口，在第一波长切换装置的第一端口和耦合端口之间配置通过状态，并且以未分配波长将第一探测信号发送到第一波长切换装置。 该方法继续在一段时间内通过第二波长切换装置的一组端口中的每一个在未分配波长处迭代地检测第一探测信号，并且记录第一波长切换装置的第一端口与第一波长切换装置的端口 当检测到第一探测信号时，第二波长切换装置。

公开(公告)号：US20150098699A1

公开(公告)日：2015-04-09

申请号：US14482199

申请日：2014-09-10

申请人： Alcatel Lucent

发明人： Arnaud BISSON ,  Annalisa MOREA

IPC分类号： H04Q11/00 ,  H04J14/02

CPC分类号： H04Q11/0062 ,  H04J14/0227 ,  H04J14/0254 ,  H04J14/0267 ,  H04J14/0271 ,  H04L41/0896 ,  H04L41/145 ,  H04Q2011/0079

摘要： An exemplary technique is provided for planning a plurality of optical connections as a function of a plurality of traffic demand. In a routing step, a loopless network path is allocated to each traffic demand. Each traffic demand is allocated to a candidate optical connection or chain of candidate optical connections selected to carry the capacity of the traffic demand along the loopless network path allocated to the traffic demand. In an optimization step, a reduced set of candidate optical connections is defined by withdrawing the candidate optical connection to be withdrawn. A candidate optical connection or a chain of candidate optical connections is determined to be re-used among the reduced set of candidate optical connections. The traffic demand is re-allocated to the candidate optical connection or chain of candidate optical connections to be re-used.

摘要翻译： 提供了一种示例性技术，用于根据多个交通需求来规划多个光学连接。 在路由步骤中，对每个业务需求分配无人网络路径。 每个业务量需求被分配给选择的候选光连接或候选光连接链，以沿着分配给业务需求的无宽网络路径承载业务需求的容量。 在优化步骤中，通过撤回待撤销的候选光连接来定义缩减的候选光连接集。 候选光连接或候选光连接链被确定为在缩减的候选光连接集合中重新使用。 交通需求被重新分配给待重新使用的候选光连接或候选光连接链。

公开(公告)号：US20150086202A1

公开(公告)日：2015-03-26

申请号：US14073623

申请日：2013-11-06

申请人： Ciena Corporation

发明人： Anurag PRAKASH ,  Mohit CHHILLAR

IPC分类号： H04J14/02 ,  H04Q11/00

CPC分类号： H04Q11/0005 ,  H04J14/021 ,  H04J14/0257 ,  H04J14/0267 ,  H04Q2011/0086

摘要： Embodiments of the disclosure are directed to optimizing routing and wavelength assignment in a network. An embodiment determines a routing assignment for a network, wherein the routing assignment is determined using a decongestion cost-based function; and determines a wavelength assignment for the network based on vector difference. The determination of the wavelength assignment comprises spanning the network for a path; calculating a weighted correlation function for at least one length in the network; storing the weighted correlation; and determining if a next path exists. If a next path is found, spanning for a next path in the network, and if a next path is not found, returning the stored correlation.

摘要翻译： 本公开的实施例涉及优化网络中的路由和波长分配。 一个实施例确定用于网络的路由分配，其中，使用基于消融成本的功能确定所述路由分配; 并基于向量差确定网络的波长分配。 波长分配的确定包括跨越路径的网络; 计算网络中至少一个长度的加权相关函数; 存储加权相关; 并确定是否存在下一个路径。 如果找到下一个路径，跨越网络中的下一个路径，并且如果找不到下一个路径，则返回存储的相关。

公开(公告)号：US08977122B2

公开(公告)日：2015-03-10

申请号：US13393645

申请日：2010-05-27

申请人： Wei Zhao

发明人： Wei Zhao

IPC分类号： H04J14/00 ,  H04J14/02 ,  H04L12/721

CPC分类号： H04J14/0257 ,  H04J14/0212 ,  H04J14/0267 ,  H04J14/0268 ,  H04J14/0271 ,  H04J14/0293 ,  H04L45/62

摘要： The present invention provides a method and device for routing and wavelength assignment in an optical network. The method comprises: a topology step in which a topology network of the optical network is obtained; a route calculation step in which at least one route in the topology network is calculated, a first node and a last node of the route being predetermined, and the at least one route being part of all routes from the first node to the last node; and a wavelength assignment determination step in which for each node on the route, it is determined whether link attribute information of the node meets a predetermined constraint condition, if the predetermined constraint condition is met, the route is selected as a working route, and the method ends; if the predetermined constraint condition is not met, the method returns to the route calculation step.

摘要翻译： 本发明提供了一种在光网络中路由和波长分配的方法和装置。 该方法包括：获得光网络拓扑网络的拓扑步骤; 路径计算步骤，其中计算所述拓扑网络中的至少一个路由，所述路由的第一节点和最后节点是预定的，并且所述至少一个路由是从所述第一节点到所述最后节点的所有路由的一部分; 以及波长分配确定步骤，其中对于路线上的每个节点，确定节点的链路属性信息是否满足预定的约束条件，如果满足预定的约束条件，则选择路由作为工作路由，并且 方法结束 如果不满足预定的约束条件，则该方法返回到路线计算步骤。

公开(公告)号：US08971340B2

公开(公告)日：2015-03-03

申请号：US13526488

申请日：2012-06-18

申请人： Maged E. Beshai

发明人： Maged E. Beshai

IPC分类号： H04L12/28 ,  H04J14/02 ,  H04Q11/00

CPC分类号： H04J14/0209 ,  H04J14/0212 ,  H04J14/0217 ,  H04J14/0227 ,  H04J14/0256 ,  H04J14/0267 ,  H04Q11/0005 ,  H04Q2011/0024 ,  H04Q2011/0032 ,  H04Q2011/0033 ,  H04Q2011/0039 ,  H04Q2011/0052

摘要： A single transposing rotator successively connects a set of access ports to a set of memory devices and the set of memory devices to the set of access ports. A set of inlet selectors connecting to rotator inlets and a set of outlet selectors connecting to rotator outlets are coordinated to concurrently connect the access ports to the memory devices through the rotator, and concurrently connect the memory devices to the access ports. Each memory device connects to an inlet selector and a corresponding peer outlet selector. Multiple temporal multiplexers submit upstream control messages from the access ports to a multi-port master controller. Multiple temporal demultiplexers distribute downstream control messages sent from the master controller to the access ports. Alternatively, the multi-port master controller may connect to selected inlet selectors and corresponding peer outlet selectors for successively receiving upstream control messages and sending downstream control messages.

摘要翻译： 单个转置旋转器将一组访问端口连续地连接到一组存储器设备，并且该组存储器设备连接到该组访问端口。 协调一组连接到旋转器入口的入口选择器和连接到旋转器出口的一组出口选择器，以通过旋转器将访问端口同时连接到存储器设备，并且将存储器设备同时连接到访问端口。 每个存储器件连接到入口选择器和相应的对应插座选择器。 多个时间复用器将上游控制消息从接入端口提交到多端口主控制器。 多个时间解复用器将从主控制器发送的下游控制消息分发到接入端口。 或者，多端口主控制器可以连接到选定的入口选择器和对应的对等端口选择器，用于连续接收上游控制消息并发送下行控制消息。

公开(公告)号：US20150050024A1

公开(公告)日：2015-02-19

申请号：US14460892

申请日：2014-08-15

申请人： Futurewei Technologies, Inc.

发明人： Yuanqiu Luo ,  Frank Effenberger ,  Bo Gao

IPC分类号： H04J14/02 ,  H04B10/27

CPC分类号： H04J14/0227 ,  H04B10/27 ,  H04J14/0258 ,  H04J14/0267 ,  H04J14/0282

摘要： An optical line terminal (OLT) comprises a receiver configured to receive a first message, a processor coupled to the receiver and configured to process the first message, and generate a second message based on the first message, wherein the second message comprises an identification (ID) structure identifying a traffic-bearing entity associated with an optical network unit (ONU), and wherein the ID structure comprises a wavelength ID field, and a transmitter coupled to the processor and configured to transmit the second message.

摘要翻译： 光线路终端（OLT）包括被配置为接收第一消息的接收机，耦合到所述接收机并被配置为处理所述第一消息并且基于所述第一消息生成第二消息的处理器，其中所述第二消息包括标识（ ID）结构，其识别与光网络单元（ONU）相关联的承载实体，并且其中所述ID结构包括波长ID字段，以及耦合到所述处理器并被配置为发送所述第二消息的发送器。