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11. 发明授权

US08818198B2 Photonic link information collection and advertisement systems and methods 有权
标题翻译：光子链接信息收集和广告系统和方法
公开(公告)号：US08818198B2
公开(公告)日：2014-08-26
申请号：US13399276
申请日：2012-02-17
申请人： Marian Trnkus , Loudon T. Blair , Lyndon Y. Ong , Anurag Prakash , Mohit Chhillar
发明人： Marian Trnkus , Loudon T. Blair , Lyndon Y. Ong , Anurag Prakash , Mohit Chhillar
IPC分类号： H04B10/00
CPC分类号： H04J14/0275 , H04J14/021 , H04J14/0227 , H04J14/0254 , H04J14/0268 , H04J14/0272 , H04J14/0273 , H04J14/0282
摘要： Photonic link information collection and advertisement systems and methods enable photonic nodes (e.g., optical amplifiers) to operate within a control plane system in a distributed and real-time manner. For example, the photonic nodes may not require full control plane protocol stacks at each photonic node. In particular, the systems and methods provide a distributed discovery method for photonic links without requiring full participation in the control plane at the photonic nodes. Additionally, the systems and methods include network databases with amplifier configuration information in a control plane enabled network.
摘要翻译：光子链路信息收集和广告系统和方法使光子节点（例如，光放大器）能够以分布式和实时的方式在控制平面系统内操作。例如，光子节点可能不需要在每个光子节点处的完整控制平面协议栈。特别地，系统和方法为光子链路提供分布式发现方法，而不需要在光子节点处完全参与控制平面。此外，系统和方法包括在启用控制平面的网络中具有放大器配置信息的网络数据库。

12. 发明申请

US20140205278A1 CALL SETUP SYSTEMS AND METHODS USING DYNAMIC LINK TAGGING AND OVERBOOKING OF LINKS IN MULTI-DOMAIN TRANSPORT NETWORKS 有权
标题翻译：呼叫建立系统和使用动态链路标记和在多域网络中链接的查看方法
公开(公告)号：US20140205278A1
公开(公告)日：2014-07-24
申请号：US13783764
申请日：2013-03-04
申请人： Vikas Kakkar , Kapil Juneja , Anurag Prakash , Mohit Chhillar
发明人： Vikas Kakkar , Kapil Juneja , Anurag Prakash , Mohit Chhillar
IPC分类号： H04B10/032
CPC分类号： H04L47/728 , H04L45/04 , H04L47/724
摘要： Call setup methods in a multi-domain network and a multi-domain network use dynamic link tagging and/or overbooking of External Network-Network Interface (ENNI) links. Thus, improved call setup systems and methods include two approaches to improve upon the responsiveness of the network for connection setups including bandwidth reservation in optical networks using “dynamic link tags” and link overbooking in optical networks based on a greedy approach. The bandwidth reservation and the link overbooking can be utilized together or separately to improve call setup. Advantageously, the improved call setup systems and methods can provide a generic bandwidth reservation mechanism, such as in Automatically Switched Optical Network (ASON) networks, to overcome the limitation of ENNI in concurrently updating the abstract link bandwidth and thereby improving the responsiveness of the network.
摘要翻译：多域网络和多域网络中的呼叫建立方法使用外部网络网络接口（ENNI）链接的动态链接标记和/或超量预订。因此，改进的呼叫建立系统和方法包括两种方法来改进网络对连接设置的响应性，包括使用“动态链路标签”的光网络中的带宽预留和基于贪婪方法的光网络中的链接超额预订。可以一起或分开使用带宽预留和链路超量预订来改善呼叫建立。有利地，改进的呼叫建立系统和方法可以提供诸如在自动交换光网络（ASON）网络中的通用带宽预留机制，以克服ENNI同时更新抽象链路带宽的限制，从而提高网络的响应性。

13. 发明授权

US08718471B2 Optical transport network transient management systems and methods 有权
标题翻译：光传输网络瞬态管理系统及方法
公开(公告)号：US08718471B2
公开(公告)日：2014-05-06
申请号：US13476589
申请日：2012-05-21
申请人： Anurag Prakash , Sebastien Gareau , Alexander Gurd Young , Gerald L. Swinkels
发明人： Anurag Prakash , Sebastien Gareau , Alexander Gurd Young , Gerald L. Swinkels
IPC分类号： H04J14/00
CPC分类号： H04B10/07 , H04B2210/071 , H04J3/0647 , H04J3/14 , H04J2203/006
摘要： An Optical Transport Network (OTN) transient management method, OTN node, and OTN network includes operating an OTN connection in a first mode in a network, the OTN connection traverses at least two nodes in the network, requesting a change in the OTN connection to a second mode which will cause a network transient, the change includes a timing change on the OTN connection affecting the at least two nodes, and performing transient management at the at least two nodes to mitigate the network transient, the transient management prevents spurious alarms due to the change between the first mode and the second mode.
摘要翻译：光传输网络（OTN）瞬态管理方法，OTN节点和OTN网络包括在网络中以第一模式操作OTN连接，OTN连接遍历网络中的至少两个节点，请求将OTN连接更改为将导致网络瞬态的第二模式，该改变包括影响至少两个节点的OTN连接上的定时改变，以及在至少两个节点处执行瞬态管理以减轻网络瞬态，该瞬态管理可防止由于到第一模式和第二模式之间的变化。

14. 发明申请

US20130266312A1 OPTICAL TRANSPORT NETWORK TRANSIENT MANAGEMENT SYSTEMS AND METHODS 有权
标题翻译：光传输网络瞬态管理系统与方法
公开(公告)号：US20130266312A1
公开(公告)日：2013-10-10
申请号：US13476589
申请日：2012-05-21
申请人： Anurag PRAKASH , Sebastien GAREAU , Alexander Gurd YOUNG , Gerald L. SWINKELS
发明人： Anurag PRAKASH , Sebastien GAREAU , Alexander Gurd YOUNG , Gerald L. SWINKELS
IPC分类号： H04B10/08
CPC分类号： H04B10/07 , H04B2210/071 , H04J3/0647 , H04J3/14 , H04J2203/006
摘要： An Optical Transport Network (OTN) transient management method, OTN node, and OTN network includes operating an OTN connection in a first mode in a network, the OTN connection traverses at least two nodes in the network, requesting a change in the OTN connection to a second mode which will cause a network transient, the change includes a timing change on the OTN connection affecting the at least two nodes, and performing transient management at the at least two nodes to mitigate the network transient, the transient management prevents spurious alarms due to the change between the first mode and the second mode.
摘要翻译：光传输网络（OTN）瞬态管理方法，OTN节点和OTN网络包括在网络中以第一模式操作OTN连接，OTN连接遍历网络中的至少两个节点，请求将OTN连接更改为将导致网络瞬态的第二模式，该改变包括影响至少两个节点的OTN连接上的定时改变，以及在至少两个节点处执行瞬态管理以减轻网络瞬态，该瞬态管理可防止由于到第一模式和第二模式之间的变化。

15. 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。

16. 发明申请

US20160037239A1 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网络服务的最佳路由参数的系统和方法
公开(公告)号：US20160037239A1
公开(公告)日：2016-02-04
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。

17. 发明申请

US20160036520A1 LOCALIZED NETWORK REPAIR SYSTEMS AND METHODS 有权
标题翻译：本地化网络维修系统和方法
公开(公告)号：US20160036520A1
公开(公告)日：2016-02-04
申请号：US14482023
申请日：2014-09-10
申请人： Gerard Leo SWINKELS , Mohit CHHILLAR , Anurag PRAKASH , Dominic RICHENS , Rajagopalan KANNAN
发明人： Gerard Leo SWINKELS , Mohit CHHILLAR , Anurag PRAKASH , Dominic RICHENS , Rajagopalan KANNAN
IPC分类号： H04B10/03
CPC分类号： H04B10/03 , H04J14/021 , H04J14/0271 , H04J2203/006 , H04L45/00 , H04L45/22 , H04L45/28 , H04L45/62
摘要： A localized repair method in a network using a control plane includes, responsive to a failure on a local repair segment defined on a connection traversing the network, generating a release message in the control plane; attempting a local repair on the local repair segment; if the local repair is unsuccessful, transmitting the release message to redial the connection; and, if the local repair is successful, signaling a new sub-path based on the local repair. A controller and a network are also disclosed.
摘要翻译：使用控制平面的网络中的局部修复方法包括响应于在穿过网络的连接上定义的局部修复段上的故障，在控制平面中生成释放消息; 尝试在当地维修部门进行修理; 如果本地修复不成功，则发送释放消息重拨连接; 并且如果本地维修成功，则基于本地修复来发出新的子路径。还公开了控制器和网络。

18. 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。

19. 发明申请

US20150117850A1 OPTIMIZATION OF PHOTONIC SERVICES WITH COLORLESS AND DIRECTIONLESS ARCHITECTURE 有权
标题翻译：使用无色无方向结构优化光电服务
公开(公告)号：US20150117850A1
公开(公告)日：2015-04-30
申请号：US14554145
申请日：2014-11-26
申请人： Anurag PRAKASH , Mohit CHHILLAR , Gerard Leo SWINKELS
发明人： Anurag PRAKASH , Mohit CHHILLAR , Gerard Leo SWINKELS
IPC分类号： H04B10/032
CPC分类号： H04B10/032 , H04J14/0291 , H04J14/0295
摘要： A method, in a node operating in a network with a control plane, to optimize wavelength retuning on service redials, includes detecting a failure on a link associated with the node; and, for each affected connections on the link, sending a respective release message to an associated originating node via the control plane, the release message including a protect path and a wavelength, wherein the release message is utilized by the associated originating node to redial the affected connections with the protect path and the wavelength determined by the node, to minimize wavelength retuning on the affected connections.
摘要翻译：一种在具有控制平面的网络中运行的节点中的优化在服务重拨上的波长重调动的方法包括检测与所述节点相关联的链路上的故障; 并且对于链路上的每个受影响的连接，经由控制平面向相关联的始发节点发送相应的释放消息，所述释放消息包括保护路径和波长，其中所述释放消息由相关联的始发节点利用以重拨受保护路径的受影响的连接和由节点确定的波长，以使受影响的连接上的波长重新调谐最小化。

20. 发明授权

US08666247B2 Bandwidth defragmentation systems and methods in optical networks 有权
标题翻译：光网络中的带宽碎片整理系统和方法
公开(公告)号：US08666247B2
公开(公告)日：2014-03-04
申请号：US12945956
申请日：2010-11-15
申请人： Hari Srinivasan , Waseem Reyaz Khan , Anurag Prakash , Saurabh Pandey
发明人： Hari Srinivasan , Waseem Reyaz Khan , Anurag Prakash , Saurabh Pandey
IPC分类号： H04J14/00
CPC分类号： H04L45/125 , H04J3/1611 , H04J3/1652 , H04J2203/0058 , H04L45/123 , H04L45/50 , H04L45/62
摘要： The present disclosure provides bandwidth defragmentation systems and methods in optical networks such as Optical Transport Network (OTN), Synchronous Optical Network (SONET), Synchronous Digital Hierarchy (SDH), Ethernet, and the like. In particular, the present invention includes bandwidth defragmentation algorithms that may be used within the context of a signaling and routing protocol to avoid bandwidth defragmentation. As such, the present invention defines a mechanism for computing an end to end path for a connection in a manner that avoids bandwidth fragmentation and provides for better network utilization. For example, the present invention may include a path computation based upon administrative weight and upon fragmentation costs. This may be implemented in existing signaling and routing protocols without changes to existing protocol messages used in topology discovery. Further, the present invention optimizes available bandwidth allowing a higher probability of higher bandwidth request being admitted.
摘要翻译：本公开提供了诸如光传输网络（OTN），同步光网络（SONET），同步数字体系（SDH），以太网等光网络中的带宽碎片整理系统和方法。特别地，本发明包括可以在信令和路由协议的上下文中使用的带宽碎片整理算法，以避免带宽碎片整理。因此，本发明定义了以避免带宽分段并提供更好的网络利用的方式来计算连接的端到端路径的机制。例如，本发明可以包括基于管理权重和分段成本的路径计算。这可以在现有的信令和路由协议中实现，而不改变在拓扑发现中使用的现有协议消息。此外，本发明优化可用带宽，允许更高带宽请求的可能性被允许。

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