公开(公告)号：US08737235B2

公开(公告)日：2014-05-27

申请号：US12635959

申请日：2009-12-11

Applicant: Biswajit Nandy ,  Nabil Seddigh ,  Rupinder Singh Makkar ,  Peter Steven Pieda

Inventor： Biswajit Nandy ,  Nabil Seddigh ,  Rupinder Singh Makkar ,  Peter Steven Pieda

IPC: H04L12/26

CPC classification number: H04L43/00 ,  H04L41/0213 ,  H04L41/0896 ,  H04L43/0876 ,  H04L43/50

Abstract: A real-time network-analysis system comprises a network appliance and a plurality of management devices. The network appliance continuously monitors an object network and synthesizes a current network image comprising contemporaneous indicators of connectivity, occupancy, and performance of the object network. A management-client device may gain access to the network image for timely control and for use in producing long-term network-evolution plans. To enable the creation of a real-time network image, optimized topology synthesis algorithms are devised to minimize the computational effort. The real-time network-analysis system is adapted for use with an object network employing a variety of routing protocols, such as link-state protocols, and network-management protocols, such as the Simple-Network-Management protocol.

Abstract translation: 实时网络分析系统包括网络设备和多个管理设备。 网络设备连续地监视对象网络并且合成当前网络图像，其包括对象网络的连续性，占用率和性能的同时指示符。 管理客户端设备可以访问网络图像以及时进行控制并用于生成长期的网络演进计划。 为了创建实时网络图像，设计了优化的拓扑合成算法以最小化计算量。 实时网络分析系统适用于采用各种路由协议（如链路状态协议）和网络管理协议（如简单网络管理协议）的对象网络。

公开(公告)号：US08189551B2

公开(公告)日：2012-05-29

申请号：US12464360

申请日：2009-05-12

Applicant: Stephen G. Rayment ,  Biswajit Nandy ,  Tricci Yuk-Ying So

Inventor： Stephen G. Rayment ,  Biswajit Nandy ,  Tricci Yuk-Ying So

IPC: H04W4/00 ,  H04L12/28 ,  H04L12/56 ,  H04W24/00

CPC classification number: H04W8/082 ,  H04W40/22 ,  H04W80/04 ,  H04W88/16

Abstract: Devices, networks and methods relating to routing gateway traffic in a mesh network for wireless access. A mesh network has multiple nodes in at least one gateway node through which all incoming and outgoing data traffic pass through. The nodes provide wireless access to wireless and user devices, each of which is associated with a node in the mesh network. Each gateway node contains a record detailing which nodes are providing wireless access to which wireless end user device and which nodes are associated with which end user devices. This record of each end user device's location is periodically updated as the gateway node periodically receives data from the nodes which detail the device is being serviced by which node. Any incoming data traffic destined for an end user device is encapsulated and routed to the proper node servicing that end user device.

Abstract translation: 与用于无线接入的网状网络中的路由网关流量相关的设备，网络和方法。 网状网络在至少一个网关节点中具有多个节点，所有传入和传出的数据流量通过该节点通过。 节点向无线终端用户设备提供无线接入，每个终端用户设备与网状网络中的节点相关联。 每个网关节点包含一个记录，详细说明哪些节点正在向哪个无线终端用户设备提供无线接入，以及哪些节点与哪些终端用户设备相关联。 随着网关节点周期性地从节点接收数据，周期性地更新每个最终用户设备的位置的该记录，详细说明该设备被哪个节点服务。 去往最终用户设备的任何传入数据流量被封装并路由到为最终用户设备提供服务的正确节点。

公开(公告)号：US20100091664A1

公开(公告)日：2010-04-15

申请号：US12635959

申请日：2009-12-11

Applicant: Biswajit NANDY ,  Nabil Seddigh ,  Rupinder Singh Makkar ,  Peter Steven Pieda

Inventor： Biswajit NANDY ,  Nabil Seddigh ,  Rupinder Singh Makkar ,  Peter Steven Pieda

IPC: H04J3/14

CPC classification number: H04L43/00 ,  H04L41/0213 ,  H04L41/0896 ,  H04L43/0876 ,  H04L43/50

Abstract: A real-time network-analysis system comprises a network appliance and a plurality of management devices. The network appliance continuously monitors an object network and synthesizes a current network image comprising contemporaneous indicators of connectivity, occupancy, and performance of the object network. A management-client device may gain access to the network image for timely control and for use in producing long-term network-evolution plans. To enable the creation of a real-time network image, optimized topology synthesis algorithms are devised to minimize the computational effort. The real-time network-analysis system is adapted for use with an object network employing a variety of routing protocols, such as link-state protocols, and network-management protocols, such as the Simple-Network-Management protocol.

Abstract translation: 实时网络分析系统包括网络设备和多个管理设备。 网络设备连续地监视对象网络并且合成当前网络图像，其包括对象网络的连续性，占用率和性能的同时指示符。 管理客户端设备可以访问网络图像以及时进行控制并用于生成长期的网络演进计划。 为了创建实时网络图像，设计了优化的拓扑合成算法以最小化计算量。 实时网络分析系统适用于采用各种路由协议（如链路状态协议）和网络管理协议（如简单网络管理协议）的对象网络。

公开(公告)号：US20090316602A1

公开(公告)日：2009-12-24

申请号：US12487086

申请日：2009-06-18

Applicant: Biswajit Nandy ,  Nabil Seddigh ,  Sabeel Ansari ,  Kevin Wong ,  Rupinder Singh Makkar

Inventor： Biswajit Nandy ,  Nabil Seddigh ,  Sabeel Ansari ,  Kevin Wong ,  Rupinder Singh Makkar

IPC: H04L12/28

CPC classification number: H04L45/02

Abstract: Methods and apparatus for topology discovery of a network having heterogeneous network devices are disclosed. A network appliance communicates with the network devices to acquire device descriptors and characterize the network devices accordingly. Topology discovery is based on device characteristics, media-access data, and encoded connectivity patterns, where each connectivity pattern is defined by devices of specific device types and respective media-access data. A topology deduction module of the network appliance synthesizes a network image starting with unconnected devices and progressively incorporating detected connectivity patterns.

Abstract translation: 公开了具有异构网络设备的网络的拓扑发现的方法和装置。 网络设备与网络设备通信以获取设备描述符并相应地表征网络设备。 拓扑发现基于设备特性，媒体访问数据和编码连接模式，其中每个连接模式由特定设备类型的设备和相应的媒体访问数据定义。 网络设备的拓扑推导模块从未连接的设备开始合成网络图像，并逐渐整合检测到的连接模式。

公开(公告)号：US20080117075A1

公开(公告)日：2008-05-22

申请号：US11601750

申请日：2006-11-20

Applicant: Nabil Seddigh ,  Biswajit Nandy ,  Rupinder Singh Makkar ,  Donald William Arthur Bennett

Inventor： Nabil Seddigh ,  Biswajit Nandy ,  Rupinder Singh Makkar ,  Donald William Arthur Bennett

IPC: G08B5/22

CPC classification number: G08B27/005 ,  H04L12/1895 ,  H04L67/18 ,  H04W4/02

Abstract: An alert system for a communications network has a plurality of client devices and a plurality of alert servers each adapted to provide alerts to a respective subset of the client devices to provide scalability. Users at the client devices subscribe to receive alerts by selecting a scope of distribution of alerts. The selection involves selecting a type of alert to receive, a level of severity of alerts to receive, and a geographic scope. In response to receiving a request to issue an alert, an alert server notifies the other alert servers of the alert. Each alert server determines which client devices of the respective subset of client devices are to receive the alert. Each alert server then sends an alert message to its client devices that are to receive the alert.

Abstract translation: 用于通信网络的警报系统具有多个客户端设备和多个警报服务器，每个警报服务器适于向客户端设备的相应子集提供警报以提供可扩展性。 客户端设备的用户通过选择警报分发的范围来订阅接收警报。 选择涉及选择要接收的警报类型，要接收的警报的严重程度以及地理范围。 响应于接收到发出警报的请求，警报服务器通知其他警报服务器警报。 每个警报服务器确定客户端设备的相应子集的哪些客户端设备将接收警报。 然后，每个警报服务器向其要接收警报的客户端设备发送警报消息。

公开(公告)号：US07317731B2

公开(公告)日：2008-01-08

申请号：US10435458

申请日：2003-05-12

Applicant: Nabil Seddigh ,  Biswajit Nandy ,  Donald William Bennett

Inventor： Nabil Seddigh ,  Biswajit Nandy ,  Donald William Bennett

IPC: H04L12/56

CPC classification number: H04L45/50 ,  H04L45/10 ,  H04L47/70 ,  H04L47/724 ,  H04L47/825

Abstract: A system of hitless restart in a network, where at least one node in the network provides routing control distributed among ingress ports (ingress cards) and egress ports (egress cards), is disclosed. With distributed routing control, each ingress card has its own routing-control software and each egress card has its own routing-control software. When the routing-software at an ingress port or an egress port of a node is restarted, current connections traversing a restarting ingress card or a restarting egress card continue to function normally during a restart period without data loss. The disclosed system is tailored to a multi-protocol label switching (MPLS) network employing distributed-resource-reservation-protocol traffic engineering (RSVP-TE). The system relies on messaging between ingress card control planes, ingress card data planes, egress card control planes, and egress card data planes of a restarting node.

Abstract translation: 公开了一种网络中的无中断重启系统，其中网络中的至少一个节点提供分布在入口端口（入口卡）和出口端口（出卡）之间的路由控制。 通过分布式路由控制，每个入口卡都有自己的路由控制软件，每个出卡都有自己的路由控制软件。 当重新启动节点入口端口或出口端口的路由软件时，通过重启入口卡或重新启动出口卡的当前连接在重新启动期间继续正常工作，无数据丢失。 所公开的系统适用于采用分布式资源预留协议流量工程（RSVP-TE）的多协议标签交换（MPLS）网络。 该系统依赖于进入卡控制平面，入口卡数据平面，出卡控制平面和重启节点的出卡数据平面之间的消息传递。

公开(公告)号：US20090225735A1

公开(公告)日：2009-09-10

申请号：US12464360

申请日：2009-05-12

Applicant: Stephen G. Rayment ,  Biswajit Nandy ,  Tricci Yuk-Ying So

Inventor： Stephen G. Rayment ,  Biswajit Nandy ,  Tricci Yuk-Ying So

IPC: H04W40/00

CPC classification number: H04W8/082 ,  H04W40/22 ,  H04W80/04 ,  H04W88/16

Abstract: Devices, networks and methods relating to routing gateway traffic in a mesh network for wireless access. A mesh network has multiple nodes in at least one gateway node through which all incoming and outgoing data traffic pass through. The nodes provide wireless access to wireless and user devices, each of which is associated with a node in the mesh network. Each gateway node contains a record detailing which nodes are providing wireless access to which wireless end user device and which nodes are associated with which end user devices. This record of each end user device's location is periodically updated as the gateway node periodically receives data from the nodes which detail the device is being serviced by which node. Any incoming data traffic destined for an end user device is encapsulated and routed to the proper node servicing that end user device.

Abstract translation: 与用于无线接入的网状网络中的路由网关流量相关的设备，网络和方法。 网状网络在至少一个网关节点中具有多个节点，所有传入和传出的数据流量通过该节点通过。 节点向无线终端用户设备提供无线接入，每个终端用户设备与网状网络中的节点相关联。 每个网关节点包含一个记录，详细说明哪些节点正在向哪个无线终端用户设备提供无线接入，以及哪些节点与哪些终端用户设备相关联。 随着网关节点周期性地从节点接收数据，周期性地更新每个最终用户设备的位置的该记录，详细说明该设备被哪个节点服务。 去往最终用户设备的任何传入数据流量被封装并路由到为最终用户设备提供服务的正确节点。

公开(公告)号：US07529480B2

公开(公告)日：2009-05-05

申请号：US10725025

申请日：2003-12-02

Applicant: Nabil Seddigh ,  Biswajit Nandy ,  Paul David Obeda ,  Douglas Heath Patriarche ,  Udo Mircea Neustadter

Inventor： Nabil Seddigh ,  Biswajit Nandy ,  Paul David Obeda ,  Douglas Heath Patriarche ,  Udo Mircea Neustadter

IPC: H04B10/08 ,  H04B17/00 ,  H04J14/02

CPC classification number: H04J14/0241 ,  H04B10/0793 ,  H04J14/0227 ,  H04J14/0283 ,  H04J14/0286

Abstract: A method for monitoring lightpaths in an optical network comprising nodes interconnected by wavelength-multiplexed links is disclosed. Each lightpath is identified by a respective optical signature. A node stores identifiers of optical signatures of lightpaths designated to traverse the node and identifiers of adjacent nodes. Each node also maintains a record of all optical signatures it detects. A command-line interface associated with a selected node tracks a selected lightpath, designated to traverse the selected node, by propagating messages in an upstream direction, a downstream direction, or both, requesting other nodes to provide information pertinent to the selected lightpath. The selected node may also send messages to all its neighboring nodes requesting each to indicated detection, or otherwise, of the selected lightpath. Thus, the method relies on localized information, maintained at each node, and cooperative exchange of data among nodes without interacting with a centralized network management facility.

Abstract translation: 公开了一种用于监视包括通过波分复用链路互连的节点的光网络中的光路的方法。 每个光路由相应的光学特征识别。 节点存储指定为遍历节点的光路的光学签名的标识符和相邻节点的标识符。 每个节点还维护其检测到的所有光学签名的记录。 与所选节点相关联的命令行界面通过在上行方向，下游方向或两者上传播消息来跟踪所指定的遍历所选节点的光路，请求其他节点提供与所选光路相关的信息。 所选择的节点还可以向所有其相邻节点发送消息，请求每个消息指示所选择的光路的检测或其他选择。 因此，该方法依赖于在每个节点处维护的本地化信息，并且在不与集中式网络管理设备交互的情况下在节点之间进行协作交换数据。

公开(公告)号：US20050185606A1

公开(公告)日：2005-08-25

申请号：US10782196

申请日：2004-02-19

Applicant: Stephen Rayment ,  Biswajit Nandy ,  Tricci So

Inventor： Stephen Rayment ,  Biswajit Nandy ,  Tricci So

IPC: H04L12/56 ,  H04L12/66 ,  H04W8/26 ,  H04W24/00 ,  H04W40/22 ,  H04W88/16 ,  H04W92/02 ,  H04Q7/00

CPC classification number: H04W8/082 ,  H04W40/22 ,  H04W80/04 ,  H04W88/16

Abstract: Devices, networks and methods relating to routing gateway traffic in a mesh network for wireless access. A mesh network has multiple nodes in at least one gateway node through which all incoming and outgoing data traffic pass through. The nodes provide wireless access to wireless and user devices, each of which is associated with a node in the mesh network. Each gateway node contains a record detailing which nodes are providing wireless access to which wireless end user device and which nodes are associated with which end user devices. This record of each end user device's location is periodically updated as the gateway node periodically receives data from the nodes which detail the device is being serviced by which node. Any incoming data traffic destined for an end user device is encapsulated and routed to the proper node servicing that end user device.

Abstract translation: 与用于无线接入的网状网络中的路由网关流量相关的设备，网络和方法。 网状网络在至少一个网关节点中具有多个节点，所有传入和传出的数据流量通过该节点通过。 节点向无线终端用户设备提供无线接入，每个终端用户设备与网状网络中的节点相关联。 每个网关节点包含一个记录，详细说明哪些节点正在向哪个无线终端用户设备提供无线接入，以及哪些节点与哪些终端用户设备相关联。 随着网关节点周期性地从节点接收数据，周期性地更新每个最终用户设备的位置的该记录，详细说明该设备被哪个节点服务。 去往最终用户设备的任何传入数据流量被封装并路由到为最终用户设备提供服务的正确节点。