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1.发明授权Network traffic generation and monitoring systems and methods for their use in testing frameworks for determining suitability of a network for target applications 有权网络流量生成和监控系统及其方法，用于测试框架，用于确定目标应用程序的网络适用性公开(公告)号：US07633942B2
公开(公告)日：2009-12-15
申请号：US10270122
申请日：2002-10-15
申请人： Mark J. Bearden , Lorraine Denby , Bengi Karacali , Jean Meloche , David Thomas Stott , Shane M. Sullivan , Clayton Whitehead , Kenneth Kane
发明人： Mark J. Bearden , Lorraine Denby , Bengi Karacali , Jean Meloche , David Thomas Stott , Shane M. Sullivan , Clayton Whitehead , Kenneth Kane
IPC分类号： H04L12/56
CPC分类号： H04L41/0213 , H04L41/0631 , H04L41/0681 , H04L41/12 , H04L41/22 , H04L41/50 , H04L43/0823 , H04L43/0876 , H04L43/50 , H04M3/2236 , H04M3/2254 , H04M7/006
摘要： A system for monitoring traffic on a network first discovers the network so as to map the various devices and links in the network. Statistics are then gathered from various points in the network relating to quality of service, and especially loads on the network devices. Synthetic calls are generated at selected points of the network while monitoring the network. This data is then stored and displayed in a manner that is easy for the operator to analyze, with more detailed displays being available through the use of a mouse or keystrokes.
摘要翻译： 用于监视网络上的流量的系统首先发现网络，以便映射网络中的各种设备和链路。 然后从与服务质量有关的各个方面收集统计数据，特别是网络设备上的负载。 在监控网络的同时，在网络的选定点生成合成呼叫。 然后以便于操作者分析的方式存储和显示该数据，通过使用鼠标或按键可获得更详细的显示。
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2.发明授权Communication system endpoint device with integrated call synthesis capability 有权具有集成呼叫综合能力的通信系统端点设备公开(公告)号：US07313098B2
公开(公告)日：2007-12-25
申请号：US10261431
申请日：2002-09-30
申请人： Mark J. Bearden , Scott Vincent Bianco , Lorraine Denby , Bengi Karacali , Jean Meloche , David Thomas Stott , Shane M. Sullivan
发明人： Mark J. Bearden , Scott Vincent Bianco , Lorraine Denby , Bengi Karacali , Jean Meloche , David Thomas Stott , Shane M. Sullivan
CPC分类号： H04M3/301 , H04J3/0682 , H04L1/205 , H04L1/24 , H04L43/50 , H04L65/608 , H04L65/80 , H04M7/006
摘要： Techniques are disclosed for improved monitoring and analysis of VoIP communications, multimedia communications or other types of network traffic in a network-based communication system. In accordance with one aspect of the invention, an endpoint device of the system includes an integrated call synthesis capability. More particularly, the endpoint device is configurable into at least a first mode of operation in which the device responds to one or more commands from a testing server of the system directing the device to participate in a synthetic call or other test communication within the system, and a second mode of operation in which the device is utilizable by a system user to establish an actual communication. Other aspects of the invention relating to kernel timestamping and timestamp post-processing provide improved accuracy for measurements such as jitter, loss and delay.
摘要翻译： 公开了用于改进在基于网络的通信系统中的VoIP通信，多媒体通信或其他类型的网络业务的监视和分析的技术。 根据本发明的一个方面，系统的端点设备包括综合呼叫合成能力。 更具体地，端点设备可配置成至少第一操作模式，其中设备响应来自系统的测试服务器的一个或多个命令，该系统指示设备参与系统内的合成呼叫或其他测试通信， 以及第二操作模式，其中该设备可由系统用户利用以建立实际的通信。 与内核时间戳和时间戳后处理相关的本发明的其它方面为诸如抖动，丢失和延迟的测量提供了改善的精度。
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公开(公告)号：US08543681B2
公开(公告)日：2013-09-24
申请号：US10270335
申请日：2002-10-15
IPC分类号： G06F15/173 , G06F15/16
CPC分类号： H04L41/0213 , H04L41/0663 , H04L41/12 , H04L41/22 , H04L41/5035 , H04L41/5051 , H04L41/5087 , H04L41/509 , H04L43/0811 , H04L43/50 , H04M3/2236 , H04M3/2254 , H04M7/006
摘要： A system discovers the topology of devices in a network, such as all of the layer-2 and layer-3 devices, including routers and switches. The devices are mapped, as well as the links that join them. The devices are polled using SNMP requests. Route tables are derived from each router to determine addresses of the devices. A spanning tree process is used to discover layer-2 devices. Connections between layers are then discovered. Where information is incomplete, an undiscovered router cloud is recognized.
摘要翻译： 系统发现网络中设备的拓扑，例如所有第2层和第3层设备，包括路由器和交换机。 设备被映射，以及加入它们的链接。 使用SNMP请求轮询设备。 从每个路由器导出路由表以确定设备的地址。 生成树进程用于发现第二层设备。 然后发现层之间的连接。 如果信息不完整，则未识别的路由器云被识别。
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4.发明授权Report generation and visualization systems and methods and their use in testing frameworks for determining suitability of a network for target applications 有权报告生成和可视化系统和方法及其在测试框架中的用途，以确定目标应用程序的网络适用性公开(公告)号：US08868715B2
公开(公告)日：2014-10-21
申请号：US10270011
申请日：2002-10-15
IPC分类号： G06F15/173 , H04L12/24 , H04M3/22 , H04L12/26 , H04M7/00
CPC分类号： H04M3/2254 , H04L41/0213 , H04L41/0631 , H04L41/0681 , H04L41/12 , H04L41/22 , H04L43/50 , H04M3/2236 , H04M7/006
摘要： A system visualizes and generates reports from stored data, concerning various measured parameters related to a network carrying call traffic. The network is displayed in an easily recognized arrangement, with various parameters being indicated by different shapes and colors for each device on the network. The parameters are changed to indicate the status of the network at different times. More detailed information about a parameter, a device or a path between devices may be obtained simply using a mouse or keystrokes. A variety of different types of detailed displays allows the operator to troubleshoot problems in the network.
摘要翻译： 系统可视化并生成来自存储数据的报告，涉及与承载呼叫流量的网络相关的各种测量参数。 网络以容易识别的布置显示，各种参数由网络上的每个设备的不同形状和颜色指示。 更改参数以指示网络在不同时间的状态。 有关参数，设备或设备之间的路径的更详细信息可以简单地使用鼠标或击键来获得。 各种不同类型的详细显示器允许操作员排除网络中的问题。
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5.发明授权Method and apparatus for automatic determination of performance problem locations in a network 有权用于自动确定网络中性能问题位置的方法和装置公开(公告)号：US07408885B2
公开(公告)日：2008-08-05
申请号：US10643275
申请日：2003-08-19
申请人： Lorraine Denby , Bengi Karacali , Jean Meloche
发明人： Lorraine Denby , Bengi Karacali , Jean Meloche
IPC分类号： H04L12/26
CPC分类号： H04L43/00 , H04L41/0631 , H04L41/5003 , H04L43/0829 , H04L43/0852 , H04L43/087 , H04L43/16 , H04L43/50
摘要： A network monitoring and analysis system is configured to include a root cause analysis function that permits the automatic determination of performance problem locations in a network of a communication system comprising a plurality of endpoint devices. Test communications are generated in the system in accordance with a selected pattern, which may be based on a flow matrix, and end-to-end path measurement data is collected utilizing the generated test communications. The end-to-end path measurement data is transformed to produce a plurality of performance indicators comprising a performance indicator for each of a plurality of non-end-to-end paths defined at least in part by the selected pattern.
摘要翻译： 网络监视和分析系统被配置为包括根本原因分析功能，其允许自动确定包括多个端点设备的通信系统的网络中的性能问题位置。 根据可以基于流矩阵的选定模式在系统中生成测试通信，并且利用生成的测试通信来收集端到端路径测量数据。 端对端路径测量数据被变换以产生多个性能指标，其包括至少部分地由所选模式定义的多个非端到端路径中的每一个的性能指示符。
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6.发明申请Method and apparatus for automatic determination of performance problem locations in a network 有权用于自动确定网络中性能问题位置的方法和装置公开(公告)号：US20050053009A1
公开(公告)日：2005-03-10
申请号：US10643275
申请日：2003-08-19
申请人： Lorraine Denby , Bengi Karacali , Jean Meloche
发明人： Lorraine Denby , Bengi Karacali , Jean Meloche
CPC分类号： H04L43/00 , H04L41/0631 , H04L41/5003 , H04L43/0829 , H04L43/0852 , H04L43/087 , H04L43/16 , H04L43/50
摘要： A network monitoring and analysis system is configured to include a root cause analysis function that permits the automatic determination of performance problem locations in a network of a communication system comprising a plurality of endpoint devices. Test communications are generated in the system in accordance with a selected pattern, which may be based on a flow matrix, and end-to-end path measurement data is collected utilizing the generated test communications. The end-to-end path measurement data is transformed to produce a plurality of performance indicators comprising a performance indicator for each of a plurality of non-end-to-end paths defined at least in part by the selected pattern.
摘要翻译： 网络监视和分析系统被配置为包括根本原因分析功能，其允许自动确定包括多个端点设备的通信系统的网络中的性能问题位置。 根据可以基于流矩阵的选定模式在系统中生成测试通信，并且利用生成的测试通信来收集端到端路径测量数据。 端对端路径测量数据被变换以产生多个性能指标，其包括至少部分地由所选模式定义的多个非端到端路径中的每一个的性能指示符。
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公开(公告)号：US07031264B2
公开(公告)日：2006-04-18
申请号：US10459948
申请日：2003-06-12
申请人： Akshay Adhikari , Scott Vincent Bianco , Lorraine Denby , Colin L. Mallows , Jean Meloche , Balaji Rao , Shane M. Sullivan , Yehuda Vardi
发明人： Akshay Adhikari , Scott Vincent Bianco , Lorraine Denby , Colin L. Mallows , Jean Meloche , Balaji Rao , Shane M. Sullivan , Yehuda Vardi
IPC分类号： H04L12/56
CPC分类号： H04L43/12 , H04L43/0829 , H04L43/0835 , H04L43/0858 , H04L43/0864 , H04L43/087 , H04L43/106
摘要： Techniques are disclosed for improved monitoring and analysis of VoIP communications, multimedia communications or other types of network traffic in a network-based communication system. In accordance with one aspect of the invention, endpoint devices of the network-based communication system are configurable so as to collectively implement a distributed monitoring and analysis system which does not require a centralized testing server or other centralized controller. Distributed test units associated with the endpoint devices may be utilized in implementing the distributed monitoring and analysis system, and are preferably configured to support a web-based user interface providing access to measurement data. The endpoint devices may be advantageously organized into a hierarchy comprising a plurality of zones, with each of the endpoint devices belonging to at least one zone. For each zone, one of the endpoint devices may be designated as a zone leader for controlling the periodic generation of communications between selected endpoint devices that belong to subzones of that zone in the hierarchy.
摘要翻译： 公开了用于改进在基于网络的通信系统中的VoIP通信，多媒体通信或其他类型的网络业务的监视和分析的技术。 根据本发明的一个方面，基于网络的通信系统的端点设备是可配置的，以便集体实现不需要集中式测试服务器或其他集中控制器的分布式监控和分析系统。 与端点设备相关联的分布式测试单元可以用于实现分布式监控和分析系统，并且优选地被配置为支持提供对测量数据的访问的基于web的用户界面。 端点设备可以有利地被组织成包括多个区域的层次结构，其中每个端点设备属于至少一个区域。 对于每个区域，可以将端点设备中的一个指定为区域引导器，用于控制属于该层级中该区域的子区域的所选择的端点设备之间的通信的周期性生成。
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公开(公告)号：US20100124262A1
公开(公告)日：2010-05-20
申请号：US12271196
申请日：2008-11-14
IPC分类号： H04B17/00
CPC分类号： H04L1/0001 , H04L1/0015 , H04L1/02 , H04L1/20
摘要： A method is disclosed for adaptively and intelligently partitioning traffic among a plurality of communications channels, without injecting probe traffic into any of the channels. In accordance with the illustrative embodiment, a source node transmits traffic to a receiving node via K communications channels in accordance with partition coefficients α1, . . . , αK, and the source node receives information regarding the quality of service (QoS) provided by each of the communications channels. The source node adjusts the values of the partition coefficients α1, . . . , αK adaptively based on: the current channel QoS information, prior channel QoS information, the prior values of α1, . . . , αK, and a measure of channel independence for one or more pairs of communications channels.
摘要翻译： 公开了一种用于在多个通信信道之间自适应和智能地划分业务的方法，而不将探测业务注入到任何信道中。 根据说明性实施例，源节点根据分区系数α1，经由K个通信信道向接收节点发送业务。 。 。 ，αK，并且源节点接收关于由每个通信信道提供的服务质量（QoS）的信息。 源节点调整分区系数α1，...的值。 。 。 ，αK自适应地基于：当前信道QoS信息，先前信道QoS信息，α1的先前值。 。 。 ，αK，以及一对或多对通信信道的信道独立性度量。
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9.发明申请公开(公告)号：US20070081460A1
公开(公告)日：2007-04-12
申请号：US11329933
申请日：2006-01-11
IPC分类号： H04L12/26
摘要： A technique is disclosed that evaluates a network path between (i) a first node in a first subnetwork of endpoint nodes, such as IP phones, and (ii) a second node in a second subnetwork. A “ricochet” node in the network path evaluates the path by probing one or both subnetworks, where the ricochet node acts as relay for traffic packets being transmitted between the two subnetworks. A given relay has only to probe a single, representative node within a subnetwork at any given time in order to obtain performance data that is representative of the subnetwork overall. By probing the representative node, the relay is able to acquire an assessment of network conditions that is valid for the path between the relay and any endpoint in the subnetwork. As a result, the disclosed technique reduces the probing overhead when many endpoint nodes on a given subnetwork are simultaneously active and experiencing adverse network conditions.
摘要翻译： 公开了一种技术，其评估（i）端点节点的第一子网络中的第一节点（例如IP电话）和（ii）第二子网络中的第二节点之间的网络路径。 网络路径中的“弹射”节点通过探测一个或两个子网络来评估路径，其中弹性节点用作在两个子网络之间传输的业务分组的中继。 给定的中继只能在任何给定的时间探测子网内的单个代表性节点，以获得代表子网的性能数据。 通过探测代表节点，中继器能够获取对于继电器和子网中的任何端点之间的路径有效的网络条件的评估。 因此，所公开的技术减少了给定子网上的许多端点节点同时处于活动状态并且经历不利的网络条件时的探测开销。
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公开(公告)号：US07953023B2
公开(公告)日：2011-05-31
申请号：US12271196
申请日：2008-11-14
IPC分类号： H04B17/00
CPC分类号： H04L1/0001 , H04L1/0015 , H04L1/02 , H04L1/20
摘要： A method is disclosed for adaptively and intelligently partitioning traffic among a plurality of communications channels, without injecting probe traffic into any of the channels. In accordance with the illustrative embodiment, a source node transmits traffic to a receiving node via K communications channels in accordance with partition coefficients α1, . . . , αK, and the source node receives information regarding the quality of service (QoS) provided by each of the communications channels. The source node adjusts the values of the partition coefficients α1, . . . , αK adaptively based on: the current channel QoS information, prior channel QoS information, the prior values of α1, . . . , αK, and a measure of channel independence for one or more pairs of communications channels.
摘要翻译： 公开了一种用于在多个通信信道之间自适应和智能地划分业务的方法，而不将探测业务注入到任何信道中。 根据说明性实施例，源节点根据分区系数α1，经由K个通信信道向接收节点发送业务。 。 。 ，αK，并且源节点接收关于由每个通信信道提供的服务质量（QoS）的信息。 源节点调整分区系数α1，...的值。 。 。 ，αK自适应地基于：当前信道QoS信息，先前信道QoS信息，α1的先前值。 。 。 ，αK，以及一对或多对通信信道的信道独立性度量。
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