公开(公告)号：US20080301271A1

公开(公告)日：2008-12-04

申请号：US12130202

申请日：2008-05-30

申请人： Fei Chen ,  Lorraine Denby ,  Jean Meloche

发明人： Fei Chen ,  Lorraine Denby ,  Jean Meloche

IPC分类号： G06F15/177

CPC分类号： H04L69/16 ,  H04L29/12952 ,  H04L43/10 ,  H04L61/6077

摘要： A method of internet protocol (IP) address de-aliasing that involves obtaining IP addresses from devices in a network, pinging pairs of the IP addresses by sending packets to pairs of the IP addresses, obtaining ping response orders for the packets, and determining whether the pairs of IP addresses are aliases of the same network device based on the obtained ping response orders.

摘要翻译： 一种互联网协议（IP）地址去锯齿的方法，涉及从网络中的设备获取IP地址，通过将数据包发送到IP地址对来ping通IP地址对，获取分组的ping响应顺序，以及确定是否 IP地址对是基于获得的ping响应命令的同一网络设备的别名。

公开(公告)号：US08027267B2

公开(公告)日：2011-09-27

申请号：US11935515

申请日：2007-11-06

申请人： Lorraine Denby ,  Eric J. Diethorn ,  Jean Meloche ,  Balaji Sathyanarayana Rao

发明人： Lorraine Denby ,  Eric J. Diethorn ,  Jean Meloche ,  Balaji Sathyanarayana Rao

IPC分类号： G01R31/08

CPC分类号： H04L41/145 ,  H04L43/0852 ,  H04L43/106

摘要： A network condition capture and reproduction technique captures measurement data characterizing network conditions at a given time between first and second endpoint devices of a network, and utilizes the captured measurement data in a network impairment device to reproduce the network conditions at a later time and possibly in a different place.

摘要翻译： 网络条件捕获和再现技术捕获表征网络的第一和第二端点设备之间的给定时间的网络条件的测量数据，并且利用网络损伤设备中捕获的测量数据在以后的时间再现网络条件，并且可能在 不同的地方

公开(公告)号：US08953496B2

公开(公告)日：2015-02-10

申请号：US11678940

申请日：2007-02-26

申请人： Lorraine Denby ,  Jean Meloche ,  John R. Tuck, Jr.

发明人： Lorraine Denby ,  Jean Meloche ,  John R. Tuck, Jr.

IPC分类号： H04L12/42 ,  H04L12/721 ,  H04L12/26 ,  H04L12/701 ,  H04L12/28

CPC分类号： H04L45/26 ,  H04L43/0829 ,  H04L43/0864 ,  H04L43/10 ,  H04L45/00

摘要： Route asymmetry is detected in a network by running a route tracing program to trace routes between a first element of the network and a second element of the network. The route tracing program need be run at only a single network element, such as the first network element. Forward and reverse routes between the first and second network elements are identified as asymmetric if performance data from the route tracing program indicates a significant deviation from an expected monotonic characteristic as a function of time-to-live values of respective packets transmitted by the route tracing program.

摘要翻译： 通过运行路由跟踪程序来跟踪网络的第一个元素和网络的第二个元素之间的路由，在网络中检测到路由不对称。 路由跟踪程序只需要在单个网元上运行，例如第一个网元。 第一和第二网络元件之间的正向和反向路由被标识为不对称，如果路由跟踪程序的性能数据表示与期望的单调特性的显着偏差，作为通过路由跟踪发送的各个分组的生存时间值的函数 程序。

公开(公告)号：US08824313B2

公开(公告)日：2014-09-02

申请号：US11531910

申请日：2006-09-14

申请人： Lorraine Denby ,  Colin L. Mallows ,  Jean Meloche

发明人： Lorraine Denby ,  Colin L. Mallows ,  Jean Meloche

IPC分类号： G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04L12/28

CPC分类号： H04L12/2697 ,  H04L43/50

摘要： A distributed monitoring system comprises a plurality of agents configured for communication with at least one central server. A given one of the agents obtains measurement data, and applies a statistical test to the measurement data. Based on a result of the statistical test, the given agent determines whether or not an update needs to be sent by the agent to the central server. The agent sends the update to the central server if the determination indicates that the update should be sent.

摘要翻译： 分布式监控系统包括被配置为与至少一个中央服务器进行通信的多个代理。 给定的一个代理获得测量数据，并对测量数据应用统计测试。 基于统计测试的结果，给定代理确定代理是否需要向中央服务器发送更新。 如果确定指示应该发送更新，代理将更新发送到中央服务器。

公开(公告)号：US07821936B2

公开(公告)日：2010-10-26

申请号：US11829429

申请日：2007-07-27

申请人： Jean Meloche ,  Lorraine Denby ,  Colin L. Mallows ,  James M. Landwehr

发明人： Jean Meloche ,  Lorraine Denby ,  Colin L. Mallows ,  James M. Landwehr

IPC分类号： G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26

CPC分类号： H04L41/147 ,  G06Q40/00 ,  H04L41/0213 ,  H04L41/12 ,  H04L41/5009 ,  H04L41/5038 ,  H04L43/0829 ,  H04L43/0852 ,  H04L43/087 ,  H04L43/50

摘要： Systems and methods are presented for partitioning end-to-end performance effects using network tomography. In one embodiment, a method for partitioning end-to-end performance effects within a network is presented. The method includes determining a network topology between at least two test points, obtaining an unrelated approximation of edge effects between the test points, measuring end-to-end performance data between the test points corresponding to a target application, regularizing an estimate of edge effects for the target application using the unrelated approximation of edge effects, and computing the estimate of edge effects for the target application to partition the end-to-end effects.

摘要翻译： 提出了使用网络层析成像分割端到端性能效果的系统和方法。 在一个实施例中，呈现了用于分割网络内的端对端性能效果的方法。 该方法包括确定至少两个测试点之间的网络拓扑，获得测试点之间的边缘效应的无关逼近，测量与目标应用相对应的测试点之间的端到端性能数据，使边缘效应的估计正规化 对于使用边缘效应的不相关近似的目标应用程序，以及计算目标应用程序的边缘效应的估计来分割端对端效应。

公开(公告)号：US20080205292A1

公开(公告)日：2008-08-28

申请号：US11678940

申请日：2007-02-26

申请人： Lorraine Denby ,  Jean Meloche ,  John R. Tuck

发明人： Lorraine Denby ,  Jean Meloche ,  John R. Tuck

IPC分类号： H04L12/28

CPC分类号： H04L45/26 ,  H04L43/0829 ,  H04L43/0864 ,  H04L43/10 ,  H04L45/00

摘要： Route asymmetry is detected in a network by running a route tracing program to trace routes between a first element of the network and a second element of the network. The route tracing program need be run at only a single network element, such as the first network element. Forward and reverse routes between the first and second network elements are identified as asymmetric if performance data from the route tracing program indicates a significant deviation from an expected monotonic characteristic as a function of time-to-live values of respective packets transmitted by the route tracing program.

摘要翻译： 通过运行路由跟踪程序来跟踪网络的第一个元素和网络的第二个元素之间的路由，在网络中检测到路由不对称。 路由跟踪程序只需要在单个网元上运行，例如第一个网元。 第一和第二网络元件之间的正向和反向路由被标识为不对称，如果路由跟踪程序的性能数据表示与期望的单调特性的显着偏差，作为通过路由跟踪发送的各个分组的生存时间值的函数 程序。

公开(公告)号：US20080080376A1

公开(公告)日：2008-04-03

申请号：US11536229

申请日：2006-09-28

申请人： Akshay Adhikari ,  Lorraine Denby ,  Colin L. Mallows ,  Jean Meloche ,  Balaji Rao

发明人： Akshay Adhikari ,  Lorraine Denby ,  Colin L. Mallows ,  Jean Meloche ,  Balaji Rao

IPC分类号： H04L12/26

CPC分类号： H04L43/00 ,  H04L41/0213 ,  H04L41/0631 ,  H04L41/0677 ,  H04L41/5003 ,  H04L41/5096 ,  H04L43/0829 ,  H04L43/0852 ,  H04L43/087 ,  H04L43/16

摘要： Performance problems or other conditions are analyzed in a system comprising a plurality of endpoint devices and an associated centralized or distributed controller. End-to-end measurements are obtained for respective paths through the network, for example, using communications between the endpoint devices. For a given end-to-end measurement obtained for a particular one of the paths, a value of a performance indicator for the path is determined and the performance indicator value is assigned to each of a plurality of links of the path. The determining and assigning operations are repeated for additional ones of the end-to-end measurements, the links are grouped into one or more exculpation or inculpation sets based on how many times a particular performance indicator value has been assigned to each of the links, and the one or more sets are utilized to determine, for example, the location of a performance problem in the network.

摘要翻译： 在包括多个端点设备和相关联的集中式或分布式控制器的系统中分析性能问题或其他条件。 通过网络获得针对相应路径的端到端测量，例如使用端点设备之间的通信。 对于针对特定路径获得的给定的端到端测量，确定路径的性能指示符的值，并且将性能指标值分配给路径的多个链路中的每一个。 针对附加的端到端测量重复确定和分配操作，基于特定的性能指标值被分配给每个链路多少次，将链路分组成一个或多个排除或者填充集合， 并且使用一个或多个集合来确定例如网络中的性能问题的位置。

公开(公告)号：US20050207410A1

公开(公告)日：2005-09-22

申请号：US11014546

申请日：2004-12-16

申请人： Akshay Adhikari ,  Amit Agarwal ,  Lorraine Denby ,  Russell Jones ,  Rod Livingood ,  Jean Meloche ,  Anupam Rai ,  Wayne Sam ,  John Tuck

发明人： Akshay Adhikari ,  Amit Agarwal ,  Lorraine Denby ,  Russell Jones ,  Rod Livingood ,  Jean Meloche ,  Anupam Rai ,  Wayne Sam ,  John Tuck

IPC分类号： H04L12/24 ,  H04L12/26 ,  H04L12/46 ,  H04L12/56 ,  H04L29/06

CPC分类号： H04L45/00 ,  H04L12/4633 ,  H04L12/4675 ,  H04L41/0677 ,  H04L41/145 ,  H04L43/10 ,  H04L43/50 ,  H04L45/20 ,  H04L45/26 ,  H04L69/22

摘要： Techniques for determining a problem location or otherwise characterizing a network comprising a plurality of processing elements, including at least one processing element associated with performance of a packet encapsulation operation of an encapsulation protocol. The packet encapsulation operation is performed on a test packet to generate an encapsulated packet, the test packet having a time to live (TTL) value and an identifier. In conjunction with performance of the packet encapsulation operation, the TTL value and the identifier of the test packet are copied to a header of the encapsulated packet. The encapsulated packet is transmitted, and a determination is made as to whether a reply packet has been received responsive to transmission of the encapsulated packet. The reply packet, if any, is processed to obtain information utilizable in determining the problem location or otherwise characterizing the network. By way of example, these operations may be repeated, for subsequent test packets with increasing TTL values, until an amount of router hop information sufficient to determine the problem location is obtained.

摘要翻译： 用于确定问题位置或以其他方式表征包括多个处理元件的网络的技术，包括与执行封装协议的分组封装操作相关联的至少一个处理元件。 在测试分组上执行分组封装操作以生成封装分组，测试分组具有生存时间（TTL）值和标识符。 结合分组封装操作的性能，将TTL值和测试分组的标识符复制到封装分组的报头。 发送封装的分组，并且确定响应于封装分组的传输是否已经接收到应答分组。 处理回复数据包（如果有的话）以获得可用于确定问题位置或以其他方式表征网络的信息。 作为示例，对于具有增加的TTL值的后续测试分组，可以重复这些操作，直到获得足以确定问题位置的路由器跳跃信息的量。

公开(公告)号：US09912524B2

公开(公告)日：2018-03-06

申请号：US13408297

申请日：2012-02-29

申请人： Jean Meloche

发明人： Jean Meloche

IPC分类号： G06F15/173 ,  H04L12/24 ,  H04L12/26

CPC分类号： H04L41/065 ,  H04L41/0645 ,  H04L43/10

摘要： Systems, methods, and non-transitory computer-readable storage media for creating dynamic session maps. The method is discussed in terms of a system implementing the method. The system generates a dynamic session map token for a packet in a communication session, wherein the dynamic session map token instructs a node to send a copy of the packet to a specified destination. The dynamic session map token includes a unique dynamic session map identifier, a port number, and an IP address associated with the specified destination. Next, the system adds the dynamic session map token to the packet to yield a tracing packet. The dynamic session map token can be incorporated into the header portion of the packet, for example. Finally, the system transmits the tracing packet to the node. In one embodiment, the system also sends the copy of the packet to the specified destination.

公开(公告)号：US09438524B2

公开(公告)日：2016-09-06

申请号：US13408446

申请日：2012-02-29

申请人： Jean Meloche

发明人： Jean Meloche

IPC分类号： H04L12/833 ,  H04L12/813

CPC分类号： H04L47/31 ,  H04L47/20

摘要： Systems, methods, and non-transitory computer-readable storage media for verifying service contracts by measuring rates of out-of-contract traffic. The method is discussed in terms of a system implementing the method. The system determines, based on packet markings, a number of network packets that are classified as out-of-contract by a network device, wherein the packet markings indicate a classification associated with respective network packets. The packet markings can be Differentiated Services Code Point markings Moreover, the classification associated with respective network packets can include a class of service and at least one of an in-contract status and an out-of-contract status. Next, the system measures network packets sent to the network device. Finally, the system determines how the network device is configured to classify incoming packets based on the number of network packets that are classified as out-of-contract by the network device and the network packets sent to the network device.

摘要翻译： 系统，方法和非暂时的计算机可读存储介质，用于通过测量合同外流量的速率来验证服务合同。 根据实现该方法的系统来讨论该方法。 该系统基于分组标记确定被网络设备分类为合同外的多个网络分组，其中分组标记指示与相应网络分组相关联的分类。 分组标记可以是差分服务代码点标记。此外，与相应网络分组相关联的分类可以包括服务类别和合同内状态和合同外状态中的至少一种。 接下来，系统测量发送到网络设备的网络数据包。 最后，系统确定网络设备如何配置为根据网络设备分类为外包的网络数量和发送到网络设备的网络分组的网络数据包的数量进行分类。