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1.发明授权公开(公告)号：US07529480B2
公开(公告)日：2009-05-05
申请号：US10725025
申请日：2003-12-02
申请人： Nabil Seddigh , Biswajit Nandy , Paul David Obeda , Douglas Heath Patriarche , Udo Mircea Neustadter
发明人： Nabil Seddigh , Biswajit Nandy , Paul David Obeda , Douglas Heath Patriarche , Udo Mircea Neustadter
CPC分类号： H04J14/0241 , H04B10/0793 , H04J14/0227 , H04J14/0283 , H04J14/0286
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20070147271A1
公开(公告)日：2007-06-28
申请号：US11606877
申请日：2006-12-01
CPC分类号： H04L43/00 , H04L41/0213 , H04L41/0896 , H04L43/0876 , H04L43/50
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US07557689B2
公开(公告)日：2009-07-07
申请号：US11601750
申请日：2006-11-20
IPC分类号： G08B9/00
CPC分类号： G08B27/005 , H04L12/1895 , H04L67/18 , H04W4/02
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US06535482B1
公开(公告)日：2003-03-18
申请号：US09306421
申请日：1999-05-06
IPC分类号： G01R3108
CPC分类号： H04L12/5602 , H04L47/10 , H04L47/12 , H04L47/193 , H04L47/263 , H04L47/30 , H04L47/32 , H04L47/33 , H04L47/35 , H04L2012/5635 , H04Q11/0478
摘要： In a router in a network comprising a source node, and a receiver node, and other nodes, a congestion monitor determines a degree of congestion, which is sent back to the source node, using an OSI network layer protocol. This enables the flow of packets from the source to be controlled more accurately to maintain high throughput with reduced probability of congestion. Using the network layer rather than lower layers can ensure the indication can be carried across the entire network, and not be lost at boundaries between data links making up the network.
摘要翻译： 在包括源节点，接收器节点和其他节点的网络中的路由器中，拥塞监视器使用OSI网络层协议来确定发送回到源节点的拥塞程度。 这使得能够更精确地控制来自源的分组的流量，以便以较低的拥塞概率保持高吞吐量。 使用网络层而不是较低层可以确保指示可以跨整个网络进行，并且不会在构成网络的数据链路之间的边界处丢失。
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公开(公告)号：US08125927B2
公开(公告)日：2012-02-28
申请号：US12487086
申请日：2009-06-18
IPC分类号： H04L12/28
CPC分类号： H04L45/02
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US07636318B2
公开(公告)日：2009-12-22
申请号：US11606877
申请日：2006-12-01
IPC分类号： H04J1/16
CPC分类号： H04L43/00 , H04L41/0213 , H04L41/0896 , H04L43/0876 , H04L43/50
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US06625118B1
公开(公告)日：2003-09-23
申请号：US09306414
申请日：1999-05-06
IPC分类号： H04L1228
CPC分类号： H04L12/5602 , H04L47/10 , H04L47/12 , H04L47/193 , H04L47/263 , H04L47/30 , H04L47/32 , H04L47/33 , H04L47/35 , H04L2012/5635 , H04Q11/0478
摘要： In a packet network, on receiving a packet a receiving host determines if the packet has been marked by any of the nodes through which it passed, to indicate congestion at that node, e.g. by checking the CE bit in an IP header. A packet flow control parameter is generated at the receiving side, and sent to the source using an Internet Protocol, as part of the packet acknowledgment, to control the flow of packets from the source, according to the packet flow control parameter. This can reduce control loop delays caused by waiting at the source for a number of acknowledgments to arrive before the congestion level can be calculated. Conditions at the receiver which may be different to those at the source can now be taken into account in the flow control.
摘要翻译： 在分组网络中，在接收到分组时，接收主机确定分组是否已被其通过的任何节点标记，以指示该节点处的拥塞，例如， 通过检查IP头中的CE位。 在接收侧生成分组流控制参数，并且根据分组流控制参数，作为分组确认的一部分，使用因特网协议向源发送来控制来自源的分组流。 这可以减少在可以计算拥塞水平之前在源处等待多个确认到达的控制环路延迟。 现在可以在流量控制中考虑在接收器处可能与源不同的条件。
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公开(公告)号：US08737235B2
公开(公告)日：2014-05-27
申请号：US12635959
申请日：2009-12-11
IPC分类号： H04L12/26
CPC分类号： H04L43/00 , H04L41/0213 , H04L41/0896 , H04L43/0876 , H04L43/50
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20100091664A1
公开(公告)日：2010-04-15
申请号：US12635959
申请日：2009-12-11
IPC分类号： H04J3/14
CPC分类号： H04L43/00 , H04L41/0213 , H04L41/0896 , H04L43/0876 , H04L43/50
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20090316602A1
公开(公告)日：2009-12-24
申请号：US12487086
申请日：2009-06-18
IPC分类号： H04L12/28
CPC分类号： H04L45/02
摘要： 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.
摘要翻译： 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。
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