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1. 发明授权

US08825820B2 Network aware application management 有权
标题翻译：网络感知应用程序管理
公开(公告)号：US08825820B2
公开(公告)日：2014-09-02
申请号：US12562826
申请日：2009-09-18
申请人： Alexandre Gerber , Carsten Lund , Jacobus Van der Merwe
发明人： Alexandre Gerber , Carsten Lund , Jacobus Van der Merwe
IPC分类号： G06F15/16 , G06F15/173 , H04L12/26 , H04L29/08 , G06F11/30 , G06F11/34
CPC分类号： H04L43/08 , G06F11/3003 , G06F11/3051 , G06F11/3466 , H04L43/0876 , H04L67/2852
摘要： A method of managing a network application includes identifying a network path for the network application, obtaining network performance measurements along the network path, obtaining application performance information for the network application, and extracting infrastructure specific information for the infrastructure supporting the network application. The method further includes correlating the application performance information, network performance measurements, and the infrastructure specific information to identify a performance issue affecting the network application, and modifying the application behavior, the network behavior, or any combination thereof in response to the performance issue.
摘要翻译：管理网络应用的方法包括识别网络应用的网络路径，沿网络路径获得网络性能测量，获得网络应用的应用性能信息，以及为支持网络应用的基础设施提取基础架构特定信息。该方法还包括将应用性能信息，网络性能测量和基础结构特定信息相关联以识别影响网络应用的性能问题，以及响应于性能问题修改应用行为，网络行为或其任何组合。

2. 发明授权

US08195710B2 Method for summarizing data in unaggregated data streams 有权
标题翻译：用于汇总未分组数据流中的数据的方法
公开(公告)号：US08195710B2
公开(公告)日：2012-06-05
申请号：US12653831
申请日：2009-12-18
申请人： Edith Cohen , Nicholas Duffield , Haim Kaplan , Carsten Lund , Mikkel Thorup
发明人： Edith Cohen , Nicholas Duffield , Haim Kaplan , Carsten Lund , Mikkel Thorup
IPC分类号： G06F17/00
CPC分类号： H04L43/028 , H04L43/04
摘要： A method for producing a summary A of data points in an unaggregated data stream wherein the data points are in the form of weighted keys (a, w) where a is a key and w is a weight, and the summary is a sample of k keys a with adjusted weights wa. A first reservoir L includes keys having adjusted weights which are additions of weights of individual data points of included keys and a second reservoir T includes keys having adjusted weights which are each equal to a threshold value τ whose value is adjusted based upon tests of new data points arriving in the data stream. The summary combines the keys and adjusted weights of the first reservoir L with the keys and adjusted weights of the second reservoir T to form the sample representing the data stream upon which further analysis may be performed. The method proceeds by first merging new data points in the stream into the reservoir L until the reservoir contains k different keys and thereafter applying a series of tests to new arriving data points to determine what keys and weights are to be added to or removed the reservoirs L and T to provide a summary with a variance that approaches the minimum possible for aggregated data sets. The method is composable, can be applied to high speed data streams such as those found on the Internet, and can be implemented efficiently.
摘要翻译：一种用于产生未聚集数据流中的数据点的摘要A的方法，其中数据点是加权密钥（a，w）的形式，其中a是密钥，w是权重，并且摘要是k的样本键a与调整权重wa。第一储存器L包括具有调整权重的密钥，这些密钥是附加密钥的各个数据点的加权的加法，而第二储存器T包括具有调整的权重的密钥，其各自等于基于新数据的测试来调整其值的阈值τ 到达数据流的点。总结将第一储层L的密钥和调整的权重与密钥和第二储存器T的调整权重组合，以形成表示可以进行进一步分析的数据流的样本。该方法通过首先将流中的新数据点合并到储存器L中，直到储存器包含k个不同的密钥，然后对新的到达数据点应用一系列测试，以确定要添加到或移除存储器的哪些密钥和权重 L和T提供一个总结，其方差接近汇总数据集的最小可能性。该方法是可组合的，可以应用于诸如在因特网上发现的高速数据流，并且可以有效地实现。

3. 发明申请

US20110134768A1 NETWORK ANALYSIS USING NETWORK EVENT DATA 审中-公开
标题翻译：使用网络事件数据进行网络分析
公开(公告)号：US20110134768A1
公开(公告)日：2011-06-09
申请号：US12633447
申请日：2009-12-08
申请人： JACOBUS VAN DER MERWE , Seungjoon Lee , Carsten Lund , Jennifer Yates
发明人： JACOBUS VAN DER MERWE , Seungjoon Lee , Carsten Lund , Jennifer Yates
IPC分类号： H04L12/26
CPC分类号： H04L41/0856 , H04L41/0853 , H04L65/4076
摘要： A system that incorporates teachings of the present disclosure may include, for example, network device having a controller to combine network data sources enabling simplified database queries across a plurality of data sources, normalize the data from the plurality of data sources, continuously collect routing information between two routers of interest, selectively and automatically extract network data involving network events and routing, determine a temporal correlation among identified network events, determine a spatial correlation among identified network events, and troubleshoot an interactive media service based on a combination of the temporal correlation and the spatial correlation determined between the defined edge routers. Other embodiments are disclosed.
摘要翻译：结合本公开的教导的系统可以包括例如具有控制器的网络设备，该控制器组合网络数据源以实现跨多个数据源的简化的数据库查询，对来自多个数据源的数据进行归一化，连续收集路由信息在两个感兴趣的路由器之间，选择性地并且自动地提取涉及网络事件和路由的网络数据，确定所识别的网络事件之间的时间相关性，确定所识别的网络事件之间的空间相关性，以及基于时间相关性的组合来排除交互式媒体服务并且在所定义的边缘路由器之间确定空间相关性。公开了其他实施例。

4. 发明申请

US20110013525A1 Indirect measurement methodology to infer routing changes using statistics of flow arrival processes 有权
标题翻译：使用统计流量到达过程来推断路由更改的间接测量方法
公开(公告)号：US20110013525A1
公开(公告)日：2011-01-20
申请号：US12460113
申请日：2009-07-14
申请人： Lee Breslau , Amogh Dhamdhere , Nicholas Duffield , Cheng Ee , Alexandre Gerber , Carsten Lund , Subhabrata Sen
发明人： Lee Breslau , Amogh Dhamdhere , Nicholas Duffield , Cheng Ee , Alexandre Gerber , Carsten Lund , Subhabrata Sen
IPC分类号： H04L12/26 , H04L12/56
CPC分类号： H04L43/18 , H04L43/062 , H04L45/70
摘要： Statistical methods are used to observe packet flow arrival processes and to infer routing changes from those observations. Packet flow arrivals are monitored using NetFlow or another packet flow monitoring arrangement. Packet flow arrivals are quantified by counting arrivals per unit time, or by measuring an inter-arrival time between flows. When a change in packet flow arrivals is determined to be statistically significant, a change in network routing protocol is reported.
摘要翻译：统计方法用于观察分组流到达过程，并从这些观察中推断出路由变化。使用NetFlow或另一个分组流监视装置来监视分组流到达。通过对每单位时间的到达时间进行计数，或通过测量流之间的到达之间的时间来量化分组流到达。当分组流到达的变化被确定为具有统计学意义时，报告了网络路由协议的变化。

5. 发明授权

US07796619B1 System and method for deriving traffic demands for a packet-switched network 有权
标题翻译：用于导出分组交换网络的业务需求的系统和方法
公开(公告)号：US07796619B1
公开(公告)日：2010-09-14
申请号：US11235491
申请日：2005-09-26
申请人： Anja Feldmann , Albert Gordon Greenberg , Carsten Lund , Nicholas Reingold , Jennifer Lynn Rexford , Frederick D. True
发明人： Anja Feldmann , Albert Gordon Greenberg , Carsten Lund , Nicholas Reingold , Jennifer Lynn Rexford , Frederick D. True
IPC分类号： H04L12/28 , H04L12/56 , H04L12/26
CPC分类号： H04L41/22 , H04L41/5003 , H04L41/5083 , H04L45/12 , H04L47/24
摘要： The present invention is directed to a method and system for deriving traffic demands for a packet-switched network. A novel model of defining traffic demands as a volume of load originating from an ingress link and destined to a set of egress links enables support for traffic engineering and performance debugging of large operational packet-switched networks.
摘要翻译：本发明涉及一种用于导出分组交换网络的业务需求的方法和系统。将流量需求定义为源自入口链路并且发往一组出口链路的负载量的新型模型支持对大型操作分组交换网络的流量工程和性能调试。

6. 发明申请

US20100150004A1 METHODS AND APPARATUS TO BOUND NETWORK TRAFFIC ESTIMATION ERROR FOR MULTISTAGE MEASUREMENT SAMPLING AND AGGREGATION 失效
标题翻译：方法和设备对多种测量采样和聚合的网络交通信息估计误差
公开(公告)号：US20100150004A1
公开(公告)日：2010-06-17
申请号：US12335074
申请日：2008-12-15
申请人： Nicholas Duffield , Carsten Lund , Mikkel Thorup , Edith Cohen
发明人： Nicholas Duffield , Carsten Lund , Mikkel Thorup , Edith Cohen
IPC分类号： G06F11/30
CPC分类号： H04L43/16 , H04L41/0681 , H04L41/12 , H04L43/02
摘要： Methods and apparatus to bound network traffic estimation error for multistage measurement sampling and aggregation are disclosed. An example method disclosed herein comprises determining a hierarchical sampling topology representative of multiple data sampling and aggregation stages, the hierarchical sampling topology comprising a plurality of nodes connected by a plurality of edges, each node corresponding to at least one of a data source and a data aggregation operation, and each edge corresponding to a data sampling operation characterized by a generalized sampling threshold, selecting a first generalized sampling threshold from a set of generalized sampling thresholds associated with a respective set of edges originating at a respective set of descendent nodes of a target node undergoing network traffic estimation, and transforming a measured sample of network traffic into a confidence interval for a network traffic estimate associated with the target node using the first generalized sampling threshold and an error parameter.
摘要翻译：公开了多级测量采样和聚合的绑定网络流量估计误差的方法和装置。本文公开的示例性方法包括确定表示多个数据采样和聚合阶段的分层采样拓扑，所述分层采样拓扑包括由多个边缘连接的多个节点，每个节点对应于数据源和数据中的至少一个并且每个边缘对应于由广义采样阈值表征的数据采样操作，从与源于目标的相应的一组后代节点的相应的一组边缘相关联的一组广义采样阈值中选择第一广义采样阈值节点进行网络流量估计，并且使用第一广义采样阈值和误差参数将网络流量的测量样本变换为与目标节点相关联的网络流量估计的置信区间。

7. 发明申请

US20090177159A1 Fluid Infusion System, A Method of Assembling Such System and Drug Reservoir for Use in the System 失效
标题翻译：流体输液系统，系统中使用的这种系统和药物储存器的组合方法
公开(公告)号：US20090177159A1
公开(公告)日：2009-07-09
申请号：US12297339
申请日：2007-04-19
申请人： Helene Juhldal Knopper , Carsten Lund
发明人： Helene Juhldal Knopper , Carsten Lund
IPC分类号： A61M5/145
CPC分类号： A61M5/14566 , A61M5/14546 , A61M5/16831 , A61M5/31515
摘要： The present application relates to methods and devices for providing a reduced risk of free flow from medical devices such as an infusion pump. A medicament containing reservoir (100) is provided with a piston having a sealing portion (121) formed by a material of a first stiffness. The piston further comprises a core member (110) of a material having a stiffness larger than said first stiffness, the core member comprising one or more connective members (111) being adapted to cooperate with said one or more protrusions of the linear actuation member. The one or more connective members being adapted to be substantially rigid in the axial direction while being resilient in a radial direction, thereby forming a releasable snap or friction fit connection with the linear actuation member. Thereby a mechanism is provided which is engageable by a purely axial relative displacement and which is disengageable by retracting the linear actuation member axially relative to the piston by exerting a pulling force greater than a predetermined limit.
摘要翻译：本申请涉及用于从诸如输液泵的医疗装置提供自由流动的风险降低的方法和装置。含有储存器（100）的药物设置有具有由第一刚度的材料形成的密封部分（121）的活塞。活塞还包括具有大于所述第一刚度的刚度的材料的芯构件（110），所述芯构件包括适于与所述线性致动构件的所述一个或多个突起配合的一个或多个连接构件（111）。一个或多个连接构件适于在轴向方向上基本上刚性，同时沿径向具有弹性，由此形成与线性致动构件的可释放的卡扣或摩擦配合连接。因此，提供了一种机构，其可以通过纯粹的轴向相对位移接合，并且通过施加大于预定极限的拉力，使线性致动构件相对于活塞轴向缩回。

8. 发明授权

US07536455B2 Optimal combination of sampled measurements 有权
标题翻译：采样测量的最佳组合
公开(公告)号：US07536455B2
公开(公告)日：2009-05-19
申请号：US11488874
申请日：2006-07-18
申请人： Nicholas G. Duffield , Carsten Lund , Mikkel Thorup
发明人： Nicholas G. Duffield , Carsten Lund , Mikkel Thorup
IPC分类号： G06F15/16
CPC分类号： H04L12/14 , H04L12/1428 , H04L41/0896 , H04L41/5009 , H04L43/022 , H04L43/024 , H04L43/026 , H04L43/16 , H04L63/1408 , Y02D50/30
摘要： Two regularized estimators that avoid the pathologies associated with variance estimation are disclosed. The regularized variance estimator adds a contribution to estimated variance representing the likely error, and hence ameliorates the pathologies of estimating small variances while at the same time allowing more reliable estimates to be balanced in the convex combination estimator. The bounded variance estimator employs an upper bound to the variance which avoids estimation pathologies when sampling probabilities are very small.
摘要翻译：公开了避免与方差估计相关的病理学的两个正则化估计。正则化方差估计器对代表可能误差的估计方差增加了一个贡献，从而改善了估计小变异的病态，同时允许在凸组合估计中平衡更可靠的估计。有界方差估计器采用方差的上限，避免了当抽样概率非常小时的估计病变。

9. 发明授权

US07437385B1 Methods and apparatus for detection of hierarchical heavy hitters 有权
标题翻译：用于检测分级重击锤的方法和装置
公开(公告)号：US07437385B1
公开(公告)日：2008-10-14
申请号：US11042771
申请日：2005-01-24
申请人： Nicholas Duffield , Carsten Lund , Subhabrata Sen , Yin Zhang , Sumeet Singh
发明人： Nicholas Duffield , Carsten Lund , Subhabrata Sen , Yin Zhang , Sumeet Singh
IPC分类号： G06F17/00 , G06F7/00
CPC分类号： H04L63/1425 , H04L29/12801 , H04L61/6004 , H04L63/1441 , H04L63/1458 , Y10S707/99945 , Y10S707/99948
摘要： An efficient streaming method and apparatus for detecting hierarchical heavy hitters from massive data streams is disclosed. In one embodiment, the method enables near real time detection of anomaly behavior in networks.
摘要翻译：公开了一种用于从海量数据流检测分层重击打者的有效的流传输方法和装置。在一个实施例中，该方法能够近似实时地检测网络中的异常行为。

10. 发明授权

US07299283B1 Apparatus for size-dependent sampling for managing a data network 有权
标题翻译：用于管理数据网络的尺寸依赖抽样的装置
公开(公告)号：US07299283B1
公开(公告)日：2007-11-20
申请号：US11478960
申请日：2006-06-27
申请人： Nicholas G. Duffield , Carsten Lund , Mikkel Thorup
发明人： Nicholas G. Duffield , Carsten Lund , Mikkel Thorup
IPC分类号： G06F15/16
CPC分类号： H04L43/00 , H04L12/14 , H04L41/0896 , H04L41/5009 , H04L43/024 , H04L43/026 , H04L43/028 , H04L43/16
摘要： The present invention provides apparatus for sampling data flows in a data network in order to estimate a total data volume in the network. Sampling the data flows in the data network reduces the network resources that must be expended by the network to support the associated activity. The present invention enables the service provider of the data network to control sampled volumes in relation to the desired accuracy. The control can be either static or can be dynamic for cases in which the data volumes are changing as a function of time.
摘要翻译：本发明提供了用于对数据网络中的数据流进行采样以便估计网络中的总数据量的装置。对数据网络中的数据流进行抽样可以减少网络必须花费的网络资源来支持相关的活动。本发明使得数据网络的服务提供商能够相对于期望的精度来控制采样量。控制可以是静态的，也可以是数据卷随着时间的变化而变化的情况。

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