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    MPLS VPN fault management using IGP monitoring system
    1.
    发明授权
    MPLS VPN fault management using IGP monitoring system 失效
    MPLS VPN故障管理采用IGP监控系统

    公开(公告)号：US08572234B2

    公开(公告)日：2013-10-29

    申请号：US10998819

    申请日：2004-11-30

    申请人： Swamy J. Mandavilli ,  Dipankar Gupta ,  Srikanth Natarajan ,  Sunil Menon ,  Anil A. Kuriakose ,  Chris Schleicher

    发明人： Swamy J. Mandavilli ,  Dipankar Gupta ,  Srikanth Natarajan ,  Sunil Menon ,  Anil A. Kuriakose ,  Chris Schleicher

    IPC分类号： G06F15/173

    CPC分类号： H04L41/06 ,  H04L41/12 ,  H04L43/0817 ,  H04L45/00

    摘要： In an exemplary embodiment, a method for managing a network includes monitoring a network using an interior gateway protocol to detect change in the network, and determining effects of the detected network change on Multi Protocol Label Switching paths in the network. For example, the MPLS paths can be the same as IGP best paths. An exemplary embodiment includes managing a Multi Protocol Label Switching network by discovering edge routers in the Multi Protocol Label Switching network, determining possible combinations of Multi Protocol Label Switching path end points based on services provided within the network, selecting discovered edge routers for observation, based on the determined possible combinations, monitoring the selected edge routers, and determining status of Multi Protocol Label Switching paths in the network based on the monitoring.

    摘要翻译： 在示例性实施例中，用于管理网络的方法包括使用内部网关协议监视网络以检测网络中的变化，以及确定检测到的网络改变对网络中的多协议标签交换路径的影响。 例如，MPLS路径可以与IGP最佳路径相同。 一个示例性实施例包括通过发现多协议标签交换网络中的边缘路由器来管理多协议标签交换网络，基于网络内提供的服务确定多协议标签交换路径终点的可能组合，基于 基于所确定的可能组合，监视所选择的边缘路由器，以及基于监视来确定网络中的多协议标签交换路径的状态。

    EPISODIC CAUSE ANALYSIS
    3.
    发明申请
    EPISODIC CAUSE ANALYSIS 审中-公开
    异常原因分析

    公开(公告)号：US20090183030A1

    公开(公告)日：2009-07-16

    申请号：US12250887

    申请日：2008-10-14

    申请人： Bob Bethke ,  Srikanth Natarajan

    发明人： Bob Bethke ,  Srikanth Natarajan

    IPC分类号： G06F11/07

    CPC分类号： G06F11/079 ,  G06F11/0709

    摘要： Managing a root cause analysis and outputting an identified root cause, for use in a system comprising a plurality of inter-related elements wherein at least some of the elements experience one or more anomalous states, comprising receiving initial indicators of system element states symptomatic of anomalous element operation, selecting an episode expiration time based on the received initial indicators, receiving additional such indicators, correlating the indicators received prior to the episode expiration time based on pre-defined relationships between the system elements, generating possible causes of the anomalous element states consistent with the received indicators and the pre-defined relationships, asserting possible causes as actual causes, identifying an actual cause as a root cause, and outputting the root cause.

    摘要翻译： 管理根本原因分析并输出识别的根本原因，用于包括多个相关元件的系统，其中至少一些元件经历一个或多个异常状态，包括接收异常的症状的系统元件状态的初始指示符 基于所接收到的初始指示符来选择事件到期时间，接收另外的这样的指示符，基于系统元素之间的预定义关系来相关于事件发生时间之前接收的指示符，从而产生异常元素状态的可能原因一致 接收到的指示符和预定义的关系，将可能的原因确定为实际原因，将实际原因标识为根本原因，并输出根本原因。

    Techniques for resolving network connectivity
    5.
    发明申请
    Techniques for resolving network connectivity 有权
    解决网络连接的技术

    公开(公告)号：US20050076143A1

    公开(公告)日：2005-04-07

    申请号：US10667313

    申请日：2003-09-23

    申请人： Zhiqiang Wang ,  Loren Wilson ,  Srikanth Natarajan

    发明人： Zhiqiang Wang ,  Loren Wilson ,  Srikanth Natarajan

    IPC分类号： G06F15/16 ,  H04L12/24 ,  H04L12/26 ,  H04L12/46

    CPC分类号： H04L41/12 ,  H04L12/4641

    摘要： Techniques are described for resolving network connectivity. According to an exemplary embodiment, a determination is made whether a first device is included in a portion of a network in which the first device can receive information directed to all devices included within the portion of the network. A first identifier associated with the portion of the network is obtained. A second identifier is assigned to the portion of the network unique to other portions of the network. The first identifier associated with the portion of the network is modified to include the second identifier. The modified first identifier is associated with the first device and the portion of the network. A first symbol identifying the first device can be presented as being connected to a second symbol identifying the portion of the network using the modified first identifier.

    摘要翻译： 描述了解决网络连接的技术。 根据示例性实施例，确定第一设备是否包括在网络的一部分中，其中第一设备可以在其中接收针对包括在网络的该部分内的所有设备的信息。 获得与网络部分相关联的第一标识符。 第二标识符被分配给网络的其他部分唯一的部分网络。 与网络部分相关联的第一标识符被修改为包括第二标识符。 修改的第一标识符与第一设备和网络的一部分相关联。 识别第一设备的第一符号可以被呈现为使用修改的第一标识符连接到标识网络的该部分的第二符号。

    2-(benzyl)-3-arylbenzofurans as antitumour and hypocholesterolemic agents
    6.
    发明授权
    2-(benzyl)-3-arylbenzofurans as antitumour and hypocholesterolemic agents 失效
    2-（苄基）-3-芳基苯并呋喃酮作为抗肿瘤和低胆固醇血症药

    公开(公告)号：US5354861A

    公开(公告)日：1994-10-11

    申请号：US971507

    申请日：1992-11-04

    申请人： Keng-Yeow Sim ,  Oi-Lian Kon ,  Chin-Chin Teo ,  Siu-Choon Ng ,  Srikanth Natarajan

    发明人： Keng-Yeow Sim ,  Oi-Lian Kon ,  Chin-Chin Teo ,  Siu-Choon Ng ,  Srikanth Natarajan

    IPC分类号： C07D307/80 ,  C07D413/10 ,  C07D405/10 ,  C07D

    CPC分类号： C07D307/80

    摘要： The synthesis and the biological evaluation of a series of basic ethers of 2-benzyl-3-arylbenzofurans as antitumor agents is described. These compounds bind significantly to the antiestrogen-binding sites but only poorly to the estrogen receptor sites and are cytotoxic to tumor cells. Some of these compounds also significantly inhibited de novo cholesterol biosynthesis in an estrogen receptor negative lymphoma cell line rich in antiestrogen-binding sites.

    摘要翻译： 描述了一系列作为抗肿瘤剂的2-苄基-3-芳基苯并呋喃的碱性醚的合成和生物学评价。 这些化合物显着地与抗雌激素结合位点结合，但仅与雌激素受体位点差，并且对肿瘤细胞具有细胞毒性。 这些化合物中的一些还显着抑制了含有抗雌激素结合位点的雌激素受体阴性淋巴瘤细胞系中的新生胆固醇生物合成。

    Compilation of causal rules into continuations
    7.
    发明授权
    Compilation of causal rules into continuations 有权
    将因果规则汇编为延续

    公开(公告)号：US08447719B2

    公开(公告)日：2013-05-21

    申请号：US12239755

    申请日：2008-09-27

    申请人： Bob Bethke ,  Srikanth Natarajan

    发明人： Bob Bethke ,  Srikanth Natarajan

    IPC分类号： G06N5/02 ,  G06F9/44

    CPC分类号： G06N5/04

    摘要： A method of compiling causal rules into continuations for use in root cause analysis of a system comprising a plurality of inter-related elements, comprising defining observable events occurring on system elements; defining at least one of a cause and a result of each of the events; defining causal rules, each rule describing a causal relationship between an event and one of its cause and its result; and compiling the causal relationships as continuations in a continuation passing style (CPS) for use in analyzing the root cause of subsequent observed events symptomatic of at least one problem on the system.

    摘要翻译： 一种将因果规则编译成连续性以用于包括多个相关元素的系统的根本原因分析的方法，包括定义在系统元件上发生的可观察事件; 定义每个事件的原因和结果中的至少一个; 定义因果规则，每个规则描述事件与其原因之间的因果关系及其结果; 并将因果关系作为继续传递风格（CPS）的延续进行编译，用于分析系统中至少一个问题的后续观察事件的根本原因。

    Techniques for resolving network connectivity
    8.
    发明授权
    Techniques for resolving network connectivity 有权
    解决网络连接的技术

    公开(公告)号：US08352637B2

    公开(公告)日：2013-01-08

    申请号：US10667313

    申请日：2003-09-23

    申请人： Zhiqiang Wang ,  Loren F. Wilson ,  Srikanth Natarajan

    发明人： Zhiqiang Wang ,  Loren F. Wilson ,  Srikanth Natarajan

    IPC分类号： G06F15/16 ,  H04L12/28

    CPC分类号： H04L41/12 ,  H04L12/4641

    摘要： Techniques are described for resolving network connectivity. According to an exemplary embodiment, a determination is made whether a first device is included in a portion of a network in which the first device can receive information directed to all devices included within the portion of the network. A first identifier associated with the portion of the network is obtained. A second identifier is assigned to the portion of the network unique to other portions of the network. The first identifier associated with the portion of the network is modified to include the second identifier. The modified first identifier is associated with the first device and the portion of the network. A first symbol identifying the first device can be presented as being connected to a second symbol identifying the portion of the network using the modified first identifier.

    摘要翻译： 描述了解决网络连接的技术。 根据示例性实施例，确定第一设备是否包括在网络的一部分中，其中第一设备可以在其中接收针对包括在网络的该部分内的所有设备的信息。 获得与网络部分相关联的第一标识符。 第二标识符被分配给网络的其他部分唯一的部分网络。 与网络部分相关联的第一标识符被修改为包括第二标识符。 修改的第一标识符与第一设备和网络的一部分相关联。 识别第一设备的第一符号可以被呈现为使用修改的第一标识符连接到标识网络的该部分的第二符号。

    MANAGING EVENT TRAFFIC IN A NETWORK SYSTEM
    9.
    发明申请
    MANAGING EVENT TRAFFIC IN A NETWORK SYSTEM 审中-公开
    管理网络系统中的事件流量

    公开(公告)号：US20110196964A1

    公开(公告)日：2011-08-11

    申请号：US13123644

    申请日：2008-10-14

    申请人： Srikanth Natarajan ,  Praveen Yalagandul ,  Bob Bethke ,  Puneet Sharma ,  Sujata Banerjee

    发明人： Srikanth Natarajan ,  Praveen Yalagandul ,  Bob Bethke ,  Puneet Sharma ,  Sujata Banerjee

    IPC分类号： G06F15/173

    CPC分类号： H04L41/0681 ,  H04L41/0604 ,  H04L43/16 ,  H04L63/0227 ,  H04L63/1416

    摘要： A network system and associated operating methods manage event storms. The network system comprises an event analysis and control engine that detects and manages events occurring on a network. The event analysis and control engine receives events from a plurality of agents, and analyzes the events according to policies specified in a policies templates database. The event analysis and control engine processes raw network packets directly with less than full packet parsing to generate a filtered stream of events based on the analysis. The event analysis and control engine propagates the filtered stream of events to a monitoring system.

    摘要翻译： 一个网络系统和相关的操作方法来管理事件风暴。 网络系统包括事件分析和控制引擎，用于检测和管理网络上发生的事件。 事件分析和控制引擎从多个代理接收事件，并根据策略模板数据库中指定的策略来分析事件。 事件分析和控制引擎直接使用小于全分组解析来处理原始网络数据包，以基于分析生成过滤的事件流。 事件分析和控制引擎将过滤的事件流传播到监控系统。

    METHOD AND SYSTEM FOR DISCOVERING A PURE HUB-AND-SPOKE TOPOLOGY
    10.
    发明申请
    METHOD AND SYSTEM FOR DISCOVERING A PURE HUB-AND-SPOKE TOPOLOGY 有权
    用于发现纯粹的HUB-AND-SPOKE拓扑学的方法和系统

    公开(公告)号：US20110096695A1

    公开(公告)日：2011-04-28

    申请号：US12588655

    申请日：2009-10-22

    申请人： Srikanth NATARAJAN ,  Swamy Jagannadha Mandavilli ,  Lawrence M. Besaw ,  Anuradha Venkataraman

    发明人： Srikanth NATARAJAN ,  Swamy Jagannadha Mandavilli ,  Lawrence M. Besaw ,  Anuradha Venkataraman

    IPC分类号： H04L12/28

    CPC分类号： H04L45/04 ,  H04L12/4625

    摘要： Presented is a method and system for determining network topology of a Virtual Private Network (VPN) in a Wide Area Network (WAN). The method includes obtaining a list of CE (customer edge) routers in a network, obtaining a list of prefixes advertised by each CE router, iterating, for each prefix, the list of prefixes advertised by all CE routers, verifying, in case a potential hub CE router already exists, whether the second CE router and the potential hub CE router are same, marking, in case a potential hub CE router does not exist, the second CE router as the potential hub CE router, and marking, if there exists a potential hub CE router that advertises every other prefix in the network, the potential hub CE router as hub site and other CE routers as spoke sites.

    摘要翻译： 提出了一种用于确定广域网（WAN）中的虚拟专用网（VPN）的网络拓扑的方法和系统。 该方法包括获取网络中的CE（客户边缘）路由器的列表，获得由每个CE路由器通告的前缀列表，对每个前缀进行迭代，由所有CE路由器通告的前缀列表，验证在潜在的情况下 集线器CE路由器已经存在，第二CE路由器和潜在的集线器CE路由器是否相同，如果潜在的集线器CE路由器不存在，则标记为第二CE路由器作为潜在的集线器CE路由器，并且如果存在 潜在的集线器CE路由器，将网络中的每个其他前缀，潜在的集线器CE路由器作为集线器站点和其他CE路由器作为辐射站点。