公开(公告)号：US09509593B2

公开(公告)日：2016-11-29

申请号：US14294350

申请日：2014-06-03

申请人： Piyush Sharma ,  Waseem Reyaz Khan ,  Ramanjit Walia ,  Darek Skalecki ,  Gerard Swinkels

发明人： Piyush Sharma ,  Waseem Reyaz Khan ,  Ramanjit Walia ,  Darek Skalecki ,  Gerard Swinkels

IPC分类号： H04L12/707 ,  H04L12/24

CPC分类号： H04L45/24 ,  H04L41/0663 ,  H04L45/128

摘要： A method in a network utilizing a distributed connection-oriented control plane includes signaling a first path for a first connection from a first source node; storing call information for the first connection at any intermediate nodes in the first path; signaling a second path for a second connection from a second source node; checking at any intermediate nodes in the second path if there is absolute route diversity between the first connection and the second connection responsive to a requirement therein; and responsive to detecting a diversity violation at an intermediate node of the any intermediate nodes in the second path, signaling a crankback to the second source node with the call information for the first connection included therein; and recomputing the second path exclusive of the first path based on the call information responsive to receiving the crankback. A network and node are also described.

摘要翻译： 利用分布式面向连接的控制平面的网络中的一种方法包括：从第一源节点发信号通知第一连接; 在所述第一路径中的任何中间节点处存储用于所述第一连接的呼叫信息; 向第二源节点发信号通知第二连接; 如果在第一连接和第二连接之间存在响应于其中的要求的绝对路由分集，则检查第二路径中的任何中间节点; 并且响应于在所述第二路径中的任何中间节点的中间节点处检测分集违例，用第一连接的呼叫信息向所述第二源节点发信号通知; 以及响应于接收到所述曲柄回馈，基于所述呼叫信息重新计算所述第一路径的第二路径。 还描述了网络和节点。

公开(公告)号：US20130007230A1

公开(公告)日：2013-01-03

申请号：US13172993

申请日：2011-06-30

申请人： Darek SKALECKI ,  Gerard SWINKELS ,  Evelyne ROCH

发明人： Darek SKALECKI ,  Gerard SWINKELS ,  Evelyne ROCH

IPC分类号： G06F15/177

CPC分类号： H04L41/0896

摘要： A method of reconfiguring a network having a transport plane for carrying subscriber traffic flows within end-to-end connections, a control plane for managing at least a portion of resources of the transport plane allocated to each connection, and a management plane for implementing management functions in the control plane and any resources of the transport plane that are not managed by the control plane. The method comprises installing an updated version of a control plane name space for a target node of the network. For each connection traversing the target node: a control plane to management plane migration is performed for removing connection state in the control plane associated with the connection, so as to transfer ownership of the connection from the control plane to the management plane; followed by a management plane to control plane migration for installing new connection state in the control plane associated with the connection, so as to transfer ownership of the connection from the management plant to the control plane, the new connection state being defined using the updated version of the control plane name space.

摘要翻译： 一种重新配置具有用于在端到端连接中承载用户业务流的传输平面的网络的方法，用于管理分配给每个连接的传输平面的至少一部分资源的控制平面，以及用于实现管理的管理平面 控制平面中的功能以及不受控制平面管理的传输平面的任何资源。 该方法包括安装用于网络的目标节点的控制平面名称空间的更新版本。 对于遍历目标节点的每个连接：执行控制平面到管理平面迁移，以消除与连接相关联的控制平面中的连接状态，从而将连接的所有权从控制平面转移到管理平面; 随后是一个管理平面，用于控制平面迁移，以在与连接相关联的控制平面中安装新的连接状态，从而将连接的所有权从管理工厂转移到控制平面，新的连接状态使用更新的版本定义 的控制平面名称空间。

公开(公告)号：US20150304159A1

公开(公告)日：2015-10-22

申请号：US14294350

申请日：2014-06-03

申请人： Piyush Sharma ,  Waseem Reyaz Khan ,  Ramanjit Walia ,  Darek Skalecki ,  Gerard Swinkels

发明人： Piyush Sharma ,  Waseem Reyaz Khan ,  Ramanjit Walia ,  Darek Skalecki ,  Gerard Swinkels

IPC分类号： H04L12/24

CPC分类号： H04L45/24 ,  H04L41/0663 ,  H04L45/128

摘要： A method in a network utilizing a distributed connection-oriented control plane includes signaling a first path for a first connection from a first source node; storing call information for the first connection at any intermediate nodes in the first path; signaling a second path for a second connection from a second source node; checking at any intermediate nodes in the second path if there is absolute route diversity between the first connection and the second connection responsive to a requirement therein; and responsive to detecting a diversity violation at an intermediate node of the any intermediate nodes in the second path, signaling a crankback to the second source node with the call information for the first connection included therein; and recomputing the second path exclusive of the first path based on the call information responsive to receiving the crankback. A network and node are also described.

摘要翻译： 利用分布式面向连接的控制平面的网络中的一种方法包括：从第一源节点发信号通知第一连接; 在所述第一路径中的任何中间节点处存储用于所述第一连接的呼叫信息; 向第二源节点发信号通知第二连接; 如果在第一连接和第二连接之间存在响应于其中的要求的绝对路由分集，则检查第二路径中的任何中间节点; 并且响应于在所述第二路径中的任何中间节点的中间节点处检测分集违例，用第一连接的呼叫信息向所述第二源节点发信号通知; 以及响应于接收到所述曲柄回馈，基于所述呼叫信息重新计算所述第一路径的第二路径。 还描述了网络和节点。

公开(公告)号：US08682179B1

公开(公告)日：2014-03-25

申请号：US13446278

申请日：2012-04-13

申请人： James Harley ,  Gerard Swinkels ,  Michael Watford

发明人： James Harley ,  Gerard Swinkels ,  Michael Watford

IPC分类号： H04B10/077

CPC分类号： H04B10/0775 ,  H04B10/032 ,  H04B10/0777 ,  H04B2210/254

摘要： A method of protection switching between first and second transceivers where dispersion compensation is effected electrically in the transmitters. The method includes detecting, at the second transceiver, a signal failure of a signal transmitted from the first transceiver and, upon detecting the signal failure, signalling the first transceiver to change its compensation function. The signalling can be done by encoding overhead bits in a signal transmitted from the second to the first transceiver. Another method of protection switching includes both transceivers toggling alternate reception paths upon detecting a signal failure and changing their dispersion compensation function to that of their respective alternate path.

摘要翻译： 一种保护在第一和第二收发器之间切换的方法，其中色散补偿在发射机中进行电气化。 该方法包括在第二收发器处检测从第一收发器发送的信号的信号故障，并且在检测到信号故障时，发信号通知第一收发器改变其补偿功能。 可以通过对从第二收发器发送的信号中的开销比特进行编码来完成信令。 保护切换的另一种方法包括两个收发器在检测到信号故障时切换交替接收路径，并将它们的色散补偿功能改变为它们各自的备选路径的方法。

公开(公告)号：US20110222846A1

公开(公告)日：2011-09-15

申请号：US13047411

申请日：2011-03-14

申请人： David BOERTJES ,  Gerard SWINKELS ,  Serge ASSELIN ,  Ryan AMENTA

发明人： David BOERTJES ,  Gerard SWINKELS ,  Serge ASSELIN ,  Ryan AMENTA

IPC分类号： H04J14/00

CPC分类号： H04J14/0284 ,  H04J14/0212 ,  H04J14/0217 ,  H04J14/0227 ,  H04J14/0258 ,  H04J14/0268 ,  H04J14/0291

摘要： A network element of an optical communications network. The network element comprises an electronic router for forwarding traffic between a set of client access ports and a plurality of I/O ports. A respective EO interface is coupled to each one of the plurality of I/O ports. Each EO interface terminates a respective optical channel. A directionally independent access (DIA) node is configured to selectively route each optical channel between its respective EO interface and a selected one of at least two optical fiber links of the optical communications network.

摘要翻译： 光通信网络的网元。 网元包括用于在一组客户端接入端口和多个I / O端口之间转发业务的电子路由器。 相应的EO接口耦合到多个I / O端口中的每一个。 每个EO接口终止相应的光通道。 方向性独立访问（DIA）节点被配置为选择性地路由其相应的EO接口和光通信网络的至少两个光纤链路中的所选择的一个之间的每个光信道。

公开(公告)号：US20060221981A1

公开(公告)日：2006-10-05

申请号：US11338118

申请日：2006-01-23

申请人： Peter Ashwood-Smith ,  Darek Skalecki ,  Gerard Swinkels ,  David Miedema

发明人： Peter Ashwood-Smith ,  Darek Skalecki ,  Gerard Swinkels ,  David Miedema

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L45/50 ,  H04L45/586

摘要： Virtual routers that abstract photonic sub-domains are provided for GMPLS networks. A virtual router uses a link viability matrix to keep track of the set of viable connections between inputs and outputs of a photonic sub-domains. A virtual router may receive RSVP-TE signaling messages and either allocate a working input to output link pair or, if explicitly signaled, verify that the requested link is currently viable. A virtual router also advertises, in its link state updates, the current set of possible outputs for any input link. Shortest path computations can be implemented utilizing virtual routers by modifying a topology graph in accordance with the link viability matrix of the virtual router.

摘要翻译： 为GMPLS网络提供了抽象光子子域的虚拟路由器。 虚拟路由器使用链路可行性矩阵来跟踪光子子域的输入和输出之间的一组可行连接。 虚拟路由器可以接收RSVP-TE信令消息，并且分配工作输入以输出链路对，或者如果明确地发信号，则验证所请求的链路当前是否可行。 虚拟路由器还在其链路状态更新中通告任何输入链路的当前可能输出集合。 可以通过根据虚拟路由器的链路可行性矩阵修改拓扑图来利用虚拟路由器来实现最短路径计算。

公开(公告)号：US09077474B2

公开(公告)日：2015-07-07

申请号：US13040590

申请日：2011-03-04

申请人： David Boertjes ,  Gerard Swinkels

发明人： David Boertjes ,  Gerard Swinkels

IPC分类号： H04J14/00 ,  H04J14/02

CPC分类号： H04J14/0212 ,  H04J14/0204 ,  H04J14/0217 ,  H04J14/0227 ,  H04J14/0297

摘要： A network element includes an electronic switch for routing traffic between a plurality of client access ports and a plurality of EO ports, a respective EO interface coupled to each one of the plurality of EO ports; a wavelength selective switch for optically switching optical signals between the EO interfaces and a set of optical transmission fibers; and a control system. The plurality of EO interfaces includes at least one Make Before Break (MBB) EO interface. The control system is operative to reconfigure the network element by identifying an EO interface to be reconfigured. A new optical path is set up through the wavelength selective switch and terminated on the MBB EO interface. The electronic switch is then controlled to re-route a traffic flow traversing the identified EO interface to the MBB EO interface.

摘要翻译： 网络元件包括用于在多个客户端访问端口和多个EO端口之间路由业务的电子交换机，耦合到多个EO端口中的每一个的相应EO接口; 用于在EO接口和一组光传输光纤之间光学切换光信号的波长选择开关; 和控制系统。 多个EO接口包括至少一个Make Break（休眠前）（MBB）EO接口。 控制系统通过识别要重新配置的EO接口来重新配置网元。 通过波长选择开关建立新的光路，并终止于MBB EO接口。 然后控制电子开关以将通过所识别的EO接口的业务流重新路由到MBB EO接口。

公开(公告)号：US08750706B2

公开(公告)日：2014-06-10

申请号：US13047411

申请日：2011-03-14

申请人： David Boertjes ,  Gerard Swinkels ,  Serge Asselin ,  Ryan Amenta

发明人： David Boertjes ,  Gerard Swinkels ,  Serge Asselin ,  Ryan Amenta

IPC分类号： H04J14/00 ,  H04B10/08

CPC分类号： H04J14/0284 ,  H04J14/0212 ,  H04J14/0217 ,  H04J14/0227 ,  H04J14/0258 ,  H04J14/0268 ,  H04J14/0291

摘要： A network element of an optical communications network. The network element comprises an electronic router for forwarding traffic between a set of client access ports and a plurality of I/O ports. A respective EO interface is coupled to each one of the plurality of I/O ports. Each EO interface terminates a respective optical channel. A directionally independent access (DIA) node is configured to selectively route each optical channel between its respective EO interface and a selected one of at least two optical fiber links of the optical communications network.

摘要翻译： 光通信网络的网元。 网元包括用于在一组客户端接入端口和多个I / O端口之间转发业务的电子路由器。 相应的EO接口耦合到多个I / O端口中的每一个。 每个EO接口终止相应的光通道。 方向性独立访问（DIA）节点被配置为选择性地路由其相应的EO接口和光通信网络的至少两个光纤链路中的所选择的一个之间的每个光信道。

公开(公告)号：US20110222394A1

公开(公告)日：2011-09-15

申请号：US12966245

申请日：2010-12-13

申请人： Gerard SWINKELS ,  James TIERNEY

发明人： Gerard SWINKELS ,  James TIERNEY

IPC分类号： H04L12/26

CPC分类号： H04L49/55 ,  H04L47/10 ,  H04L49/90

摘要： A method of forwarding traffic through a network node including an ingress IO card, an egress IO card, and a pair of parallel switch fabric cards. One of the switch fabric cards is designated as a working switch fabric card, and the other one of the switch fabric cards is designated as a protection switch fabric card. In the ingress IO card, the traffic flow is divided into a committed information rate (CIR) component and an extra information rate (EIR) signal. Under a normal operating condition of the node, the ingress IO card forwards the CIR traffic component through the working switch fabric card, and forwards the EIR traffic component through the protection switch fabric card. Upon detection of a failure impacting the working switch fabric card, the ingress IO card drops the EIR traffic component and forwards the CIR traffic component through the protection switch fabric card.

摘要翻译： 一种通过网络节点转发流量的方法，包括入口IO卡，出口IO卡和一对并行交换矩阵卡。 其中一个交换矩阵卡被指定为工作交换矩阵卡，另一个交换矩阵卡被指定为保护交换矩阵卡。 在入口IO卡中，业务流分为承诺信息速率（CIR）分量和额外信息速率（EIR）信号。 在节点的正常运行状态下，入口IO卡通过工作交换矩阵卡转发CIR业务组件，并通过保护交换矩阵卡转发EIR流量组件。 当检测到影响工作交换矩阵卡的故障时，入口IO卡丢弃EIR流量组件，并通过保护交换矩阵卡转发CIR业务组件。

公开(公告)号：US20190317890A1

公开(公告)日：2019-10-17

申请号：US16384358

申请日：2019-04-15

申请人： David WOODS ,  Mark WIGHT ,  Gerard SWINKELS

发明人： David WOODS ,  Mark WIGHT ,  Gerard SWINKELS

IPC分类号： G06F12/02 ,  G06F13/16

摘要： Methods for transfer of bulk data from a leader device to a follower device over a bus are described. The methods employ address frames and write frames. The bus, the address frames, and the write frames are compatible with Clause 45 of IEEE Std 802.3-2015. The methods achieve a reduction in the number of frames employed to transfer data as contrasted with conventional indirect write transactions. After transmitting on a Management Data Input/Output (MDIO) data signal an address frame that specifies the follower device and that contains the address of an initial register, the leader device proceeds to transmit on the MDIO data signal multiple write frames that specify the target follower device, the multiple write frames transmitted one at a time, each write frame containing a different block of the bulk data. A follower device implements a post-write-increment-address action, despite the absence of any definition in Clause 45 of IEEE Std 802.3-2015 of a post-write-increment-address frame.