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1. 发明授权

US09485550B2 Systems and methods for selection of optimal routing parameters for DWDM network services in a control plane network 有权
标题翻译：用于选择控制平面网络中DWDM网络服务的最优路由参数的系统和方法
公开(公告)号：US09485550B2
公开(公告)日：2016-11-01
申请号：US14482336
申请日：2014-09-10
申请人： Mohit Chhillar , Anurag Prakash , Seemant Bisht , Hari Srinivasan
发明人： Mohit Chhillar , Anurag Prakash , Seemant Bisht , Hari Srinivasan
IPC分类号： H04Q11/00 , H04J14/02
CPC分类号： H04Q11/0003 , H04J14/0227 , H04J14/0257 , H04J14/0271 , H04L45/02 , H04L45/12 , H04L45/26 , H04L45/28 , H04L45/64 , H04Q11/0005 , H04Q11/0062 , H04Q2011/0073
摘要： A method, in an intermediate node in a control plane network, includes receiving a setup message from an originating node, wherein the setup message is sent towards a terminating node on a computed path in the control plane network, and the setup message indicates associated Layer 0 attributes; validating the associated attributes/constraints based on locally available resources; and performing one of: forwarding the setup message on the path towards the terminating node when validation is successful; forwarding the setup message on the path towards the terminating node with updated information indicating a rejection cause and additional information when the validation is unsuccessful, but a modification of the Layer 0 attributes/constraints is possible; and forwarding a release message on the path back to the originating node with updated information indicating a rejection cause and additional information when the validation is unsuccessful and no modifications of the Layer 0 attributes/constraints are possible.
摘要翻译：一种在控制平面网络中的中间节点中的方法，包括从起始节点接收建立消息，其中所述建立消息被发送到所述控制平面网络中计算的路径上的终止节点，并且所述建立消息指示相关联的层 0属性; 基于本地可用资源验证相关属性/约束; 并执行以下步骤之一：当验证成功时，将路径上的建立消息转发到终止节点; 当验证不成功时，向终止节点路径转发建立消息，该更新信息指示拒绝原因和附加信息，但可以修改第0层属性/约束; 以及当所述验证不成功且不能修改所述第0层属性/约束时，将所述路径上的释放消息转发回所述始发节点，所述更新信息指示拒绝原因和附加信息。

2. 发明申请

US20170163489A1 CONTROL PLANE DISCOVERY OF SERVICES 审中-公开
公开(公告)号：US20170163489A1
公开(公告)日：2017-06-08
申请号：US14961352
申请日：2015-12-07
申请人： Anurag Prakash , Mohit Chhillar , Dominic Richens , Seemant Bisht
发明人： Anurag Prakash , Mohit Chhillar , Dominic Richens , Seemant Bisht
IPC分类号： H04L12/24 , H04B10/27
CPC分类号： H04L41/12 , H04B10/27 , H04J14/0227
摘要： A method for control plane discovery includes a plurality of network elements transmitting an outbound control plane communication to generate path information of a path through the network elements. The transmitting includes receiving, by an intermediate network element of the network elements, the outbound control plane communication on an optical layer ingress port, appending, by the intermediate network element, an intermediate network element identifier of the intermediate network element to the path information in the outbound control plane communication, and transmitting, by the intermediate network element, the outbound control plane communication via an electrical layer egress port based on the intermediate network element comprising a layer changing drop port. The method further includes the network elements receiving via the path, the path information via a returned control plane communication, storing the path information in the returned control plane communication, and operating a control plane using the path information.

3. 发明授权

US09236953B2 Coordination systems and methods between data control plane and photonic control in optical networks 有权
标题翻译：光网络数据控制平面与光子控制之间的协调系统与方法
公开(公告)号：US09236953B2
公开(公告)日：2016-01-12
申请号：US14247320
申请日：2014-04-08
申请人： Mohit Chhillar , Anurag Prakash , Rajagopalan Kannan , Dominic Richens , Hari Srinivasan
发明人： Mohit Chhillar , Anurag Prakash , Rajagopalan Kannan , Dominic Richens , Hari Srinivasan
IPC分类号： H04B10/00 , H04B10/70 , H04J14/02 , H04Q11/00 , H04B10/032
CPC分类号： H04B10/70 , H04B10/00 , H04B10/032 , H04J14/0295 , H04Q11/0066 , H04Q11/0071 , H04Q2011/0081 , H04Q2011/0086
摘要： A method, a system, and a network for coordination between a data control plane and photonic control in a network include operating the data control plane with photonic control messaging included therein, wherein the data control plane is configured to at least establish end-to-end paths between a plurality of network elements at Layer 1; transmitting a photonic control message in or by the data control plane responsive to a requirement for photonic layer information; processing, via the data control plane, the photonic layer information received from photonic control responsive to the photonic control message, wherein the photonic control is configured to adjust photonic hardware responsive to a change at a photonic layer; and performing an action by the data control plane considering the photonic layer information.
摘要翻译：用于网络中的数据控制平面和光子控制之间的协调的方法，系统和网络包括利用包括在其中的光子控制消息来操作数据控制平面，其中数据控制平面被配置为至少建立端到端第1层的多个网元之间的终端路径; 响应于对光子层信息的要求，在数据控制平面内或由数据控制平面传输光子控制消息; 经由数据控制平面处理响应于光子控制消息从光子控制接收的光子层信息，其中所述光子控制被配置为响应于光子层的变化来调整光子硬件; 并且考虑光子层信息由数据控制平面执行动作。

4. 发明申请

US20150244470A1 COORDINATION SYSTEMS AND METHODS BETWEEN DATA CONTROL PLANE AND PHOTONIC CONTROL IN OPTICAL NETWORKS 有权
标题翻译：光网络数据控制平面与光电控制之间的协调系统与方法
公开(公告)号：US20150244470A1
公开(公告)日：2015-08-27
申请号：US14247320
申请日：2014-04-08
申请人： Mohit Chhillar , Anurag Prakash , Rajagopalan Kannan , Dominic Richens , Hari Srinivasan
发明人： Mohit Chhillar , Anurag Prakash , Rajagopalan Kannan , Dominic Richens , Hari Srinivasan
IPC分类号： H04B10/70 , H04Q11/00 , H04B10/032 , H04J14/02
CPC分类号： H04B10/70 , H04B10/00 , H04B10/032 , H04J14/0295 , H04Q11/0066 , H04Q11/0071 , H04Q2011/0081 , H04Q2011/0086
摘要： A method, a system, and a network for coordination between a data control plane and photonic control in a network include operating the data control plane with photonic control messaging included therein, wherein the data control plane is configured to at least establish end-to-end paths between a plurality of network elements at Layer 1; transmitting a photonic control message in or by the data control plane responsive to a requirement for photonic layer information; processing, via the data control plane, the photonic layer information received from photonic control responsive to the photonic control message, wherein the photonic control is configured to adjust photonic hardware responsive to a change at a photonic layer; and performing an action by the data control plane considering the photonic layer information.
摘要翻译：用于网络中的数据控制平面和光子控制之间的协调的方法，系统和网络包括利用包括在其中的光子控制消息来操作数据控制平面，其中数据控制平面被配置为至少建立端到端第1层的多个网元之间的终端路径; 响应于对光子层信息的要求，在数据控制平面内或由数据控制平面传输光子控制消息; 经由数据控制平面处理响应于光子控制消息从光子控制接收的光子层信息，其中所述光子控制被配置为响应于光子层的变化来调整光子硬件; 并且考虑光子层信息由数据控制平面执行动作。

5. 发明授权

US09800522B2 Make-before-break systems and methods decoupling a control plane from a data plane 有权
公开(公告)号：US09800522B2
公开(公告)日：2017-10-24
申请号：US14554115
申请日：2014-11-26
申请人： Mohit Chhillar , Anurag Prakash , Gerard Leo Swinkels
发明人： Mohit Chhillar , Anurag Prakash , Gerard Leo Swinkels
IPC分类号： H04L12/939 , H04L12/911 , H04L12/703 , H04L12/937 , H04L12/715 , H04L12/707
CPC分类号： H04L49/557 , H04L45/22 , H04L45/28 , H04L45/64 , H04L47/72 , H04L49/253
摘要： A Make-Before-Break (MBB) method, in a node operating in a network with a control plane, decoupling the control plane from a data plane, includes, for a connection operating on a path in the network, determining a reserved connection on a new path, through the control plane, wherein the reserved connection has zero bandwidth; signaling the reserved connection on the new path; creating the reserved connection in the control plane while suspending implementation in the data plane due to the zero bandwidth; and releasing the connection on the path and modifying the reserved connection on the new path to establish the connection on the new path.

6. 发明授权

US08682160B2 Path computation systems and methods in optical networks 有权
标题翻译：光网络中的路径计算系统和方法
公开(公告)号：US08682160B2
公开(公告)日：2014-03-25
申请号：US13420717
申请日：2012-03-15
申请人： Anurag Prakash , Mohit Chhillar , Marian Trnkus , Waseem Reyaz Khan
发明人： Anurag Prakash , Mohit Chhillar , Marian Trnkus , Waseem Reyaz Khan
IPC分类号： H04J14/00
CPC分类号： H04J14/0257 , H04J14/0206 , H04J14/0215 , H04J14/0217 , H04J14/0258 , H04J14/0267 , H04J14/0269 , H04J14/0271 , H04J14/0284
摘要： A path computation method includes defining photonic constraints associated with a network, wherein the photonic constraints include wavelength capability constraints at each node in the network, wavelength availability constraints at each node in the network, and nodal connectivity constraints of each node in the network, and performing a constrained path computation in the network using Dijkstra's algorithm on a graph model of the network with the photonic constraints considered therein. An optical network includes a plurality of interconnected nodes each including wavelength capability constraints, wavelength availability constraints, and nodal connectivity constraints, and a path computation element associated with the plurality of interconnected photonic nodes, wherein the path computation element is configured to perform a constrained path computation through the plurality of interconnected nodes using Dijkstra's algorithm on a graph model with the photonic constraints considered therein.
摘要翻译：路径计算方法包括定义与网络相关联的光子约束，其中光子约束包括网络中每个节点处的波长能力约束，网络中每个节点处的波长可用性约束以及网络中每个节点的节点连接约束，以及使用Dijkstra算法对其中考虑的光子约束的网络的图形模型执行网络中的约束路径计算。光网络包括多个互连节点，每个节点包括波长能力约束，波长可用性约束和节点连接性约束，以及与多个相互连接的光子节点相关联的路径计算元件，其中，路径计算元件被配置为执行约束路径在其中考虑的光子约束的图形模型上使用Dijkstra算法通过多个互连节点进行计算。

7. 发明授权

US09538264B2 ODUflex resizing systems and methods 有权
标题翻译： ODUflex调整系统和方法
公开(公告)号：US09538264B2
公开(公告)日：2017-01-03
申请号：US14489589
申请日：2014-09-18
申请人： Steven Arvo Surek , Jeffery Thomas Nichols , Jeffrey Scott Moynihan , Mohit Chhillar , Anurag Prakash , Alexander Gurd Young
发明人： Steven Arvo Surek , Jeffery Thomas Nichols , Jeffrey Scott Moynihan , Mohit Chhillar , Anurag Prakash , Alexander Gurd Young
IPC分类号： H04J3/16 , H04Q11/00 , H04L12/825 , H04L12/917 , H04L12/911 , H04L12/26
CPC分类号： H04Q11/0003 , H04J3/1652 , H04J3/1658 , H04J2203/0051 , H04J2203/006 , H04J2203/0067 , H04L41/0896 , H04L43/0894 , H04L47/266 , H04L47/76 , H04L47/828 , H04Q11/0066 , H04Q2011/0086 , Y02D50/10
摘要： An Optical channel Data Unit flex (ODUflex) resizing method, node, and network include determining that the ODUflex needs resizing, wherein the ODUflex is configured in the network on a current path between the node and a second node in the network; when the resizing is a decrease, reducing a size of the ODUflex by i) a resize decrease operation using a control plane or ii) a Link Aggregation Group and Make-Before-Break operation; and, when the resizing is an increase, increasing a size of the ODUflex by i) a resize increase operation using a control plane or ii) a Link Aggregation Group and Make-Before-Break operation. The method provides hitless resizing without using ITU Recommendation G.7044/Y.1347 (10/11) and can perform the reducing or the increasing changing bandwidth of the ODUflex by approximately 100 G in less than a second.
摘要翻译：光通道数据单元flex（ODUflex）调整方法，节点和网络包括确定ODUflex需要调整大小，其中ODUflex在网络中在节点和网络中的第二节点之间的当前路径上配置; 当调整大小减少时，通过i）使用控制平面的调整大小减少操作来减少ODUflex的大小，或者ii）链路聚合组和假前操作; 并且当调整大小增加时，通过i）使用控制平面的调整大小增加操作或者ii）链路聚合组和假前操作来增加ODUflex的大小。该方法在不使用ITU G.7044 / Y.1347（10/11）的ITU推荐的情况下提供无限幅调整，并且可以在不到一秒内执行ODUflex的减小或增加的带宽大约100G。

8. 发明授权

US09054831B2 Optical communication network path restoration 有权
标题翻译：光通信网络路径恢复
公开(公告)号：US09054831B2
公开(公告)日：2015-06-09
申请号：US13401969
申请日：2012-02-22
申请人： Anurag Prakash , Mohit Chhillar , Marian Trnkus
发明人： Anurag Prakash , Mohit Chhillar , Marian Trnkus
IPC分类号： H04J14/00 , H04J1/16 , H04J14/02
CPC分类号： H04J14/0269 , H04J14/0268
摘要： A method and system of determining a new path through an optical network from a source node to a destination node when a link in an original path fails are disclosed. When a fault on a link is detected, adjoint weights are assigned to each operational link for each node on the original path. A connection cost is determined for each node based on the adjoint weights of the links connected to the node. A new path through the optical network is determined based at least in part on the adjoint weights and the connection costs.
摘要翻译：公开了当原始路径中的链路发生故障时，通过光网络确定从源节点到目的地节点的新路径的方法和系统。当检测到链路故障时，将伴随权重分配给原始路径上每个节点的每个操作链路。基于连接到节点的链路的伴随权重，确定每个节点的连接成本。至少部分地基于伴随权重和连接成本确定通过光网络的新路径。

9. 发明申请

US20130308948A1 EXTENDING CONTROL PLANE FUNCTIONS TO THE ENTWORK EDGE IN AN OPTICAL TRANSPORT NETWORK 有权
标题翻译：扩展控制平面功能到光网络中的工作边缘
公开(公告)号：US20130308948A1
公开(公告)日：2013-11-21
申请号：US13567154
申请日：2012-08-06
申请人： Gerard L. Swinkels , Darek Skalecki , Anurag Prakash , Mohit Chhillar
发明人： Gerard L. Swinkels , Darek Skalecki , Anurag Prakash , Mohit Chhillar
IPC分类号： H04B10/27
CPC分类号： H04B10/27 , H04L41/12 , H04L45/62 , H04L45/64
摘要： A method of extending the control plane to a network edge for a network having first set of nodes of the network are designated as core nodes, each core node being operable to route subscriber traffic between a pair of neighbour core nodes and a second set of control-plane enabled nodes of the network designated as tail nodes, each tail node connected to a core node and operating only as a source or sink of subscriber traffic. Each core node that is connected to at least one tail node is designated as a host node. The host node is controlled to advertise summary information of its connected tail nodes to other core and tail nodes in the network, thus making it possible to extend control plane function to the tail nodes which can calculate connection routes, set-up/tear-down connections and perform connection failure recovery functions.
摘要翻译：将具有网络的第一组节点的网络的控制平面扩展到网络边缘的方法被指定为核心节点，每个核心节点可操作以在一对相邻核心节点和第二组控制之间路由用户业务指定为尾部节点的网络平面启用节点，每个尾节点连接到核心节点，仅作为用户流量的源或汇。连接到至少一个尾部节点的每个核心节点被指定为主机节点。控制主节点将其连接的尾节点的摘要信息通告给网络中的其他核心和尾部节点，从而可以将控制平面功能扩展到可以计算连接路由，建立/拆除的尾部节点连接并执行连接故障恢复功能。

10. 发明授权

US09577782B2 Systems and methods for statistical multiplexing with OTN and DWDM 有权
标题翻译：用于OTN和DWDM进行统计复用的系统和方法
公开(公告)号：US09577782B2
公开(公告)日：2017-02-21
申请号：US14340788
申请日：2014-07-25
申请人： Anurag Prakash , Mohit Chhillar
发明人： Anurag Prakash , Mohit Chhillar
IPC分类号： H04J14/02
CPC分类号： H04B10/0795 , H04J3/1652 , H04J14/0227 , H04J14/0254 , H04J14/026 , H04J2203/0053 , H04L45/42 , H04L47/11 , H04L47/76 , H04L49/30 , H04L49/357 , H04L2012/5619
摘要： A method includes profiling user-network interface (UNI) ports including Optical channel Data Unit flex (ODUflex) in a network; and adapting, using a max-flow routing criterion, network-network interface (NNI) ports comprising ODUflex based on the profiling. A network includes a plurality of network elements; a plurality of links interconnecting the plurality of network elements, wherein the plurality of links includes Layer 0 Dense Wave Division Multiplexing (DWDM) bandwidth and Layer 1 Optical Transport Network (OTN) bandwidth; and a control plane operating between the plurality of network elements; wherein the Layer 0 DWDM bandwidth and the Layer 1 OTN bandwidth is statistically multiplexed using the control plane and manager based on monitoring bandwidth usage thereon over time.
摘要翻译：一种方法包括在网络中分析用户网络接口（UNI）端口，包括光信道数据单元灵活（ODUflex）; 并使用最大流量路由标准来适应基于分析的包含ODUflex的网络接口（NNI）端口。网络包括多个网元; 连接所述多个网络元件的多个链路，其中所述多个链路包括层0密集波分复用（DWDM）带宽和第1层光传输网络（OTN）带宽; 以及在所述多个网络元件之间操作的控制平面; 其中使用所述控制平面和管理器，基于随时间监视其带宽使用来对所述第0层DWDM带宽和所述第1层OTN带宽进行统计复用。

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