公开(公告)号：US07191249B1

公开(公告)日：2007-03-13

申请号：US10261929

申请日：2002-10-02

Applicant: Philippe Lacroute ,  Matthew A. Tucker

Inventor： Philippe Lacroute ,  Matthew A. Tucker

IPC: G06F15/173 ,  G06F15/16

CPC classification number: G06F15/17 ,  H04L47/10 ,  H04L47/2441 ,  H04L47/50 ,  H04L47/52 ,  H04L49/90

Abstract: A switch fabric includes input links, output links, and at least one switching element. The input links are configured to receive data items that include destination addresses. At least some of the data items have different priority levels. The output links are configured to output the data items. Each of the output links is assigned multiple ones of the destination addresses. Each of the destination addresses corresponds to one of the priority levels. The switching element(s) is/are configured to receive the data items from the input links and send the data items to ones of the output links without regard to the priority levels of the data items.

Abstract translation: 交换结构包括输入链路，输出链路和至少一个交换元件。 输入链接被配置为接收包含目的地址的数据项。 至少一些数据项具有不同的优先级。 输出链接配置为输出数据项。 每个输出链路被分配多个目标地址。 每个目标地址对应于优先级之一。 开关元件被配置为从输入链路接收数据项，并且将数据项发送到输出链路中的一个，而不考虑数据项的优先级。

公开(公告)号：US08516151B2

公开(公告)日：2013-08-20

申请号：US12954412

申请日：2010-11-24

Applicant: Philippe Lacroute ,  Matthew A. Tucker

Inventor： Philippe Lacroute ,  Matthew A. Tucker

IPC: G06F15/16 ,  G06F15/173

CPC classification number: G06F15/17 ,  H04L47/10 ,  H04L47/2441 ,  H04L47/50 ,  H04L47/52 ,  H04L49/90

Abstract: A switch fabric includes input links, output links, and at least one switching element. The input links are configured to receive data items that include destination addresses. At least some of the data items have different priority levels. The output links are configured to output the data items. Each of the output links is assigned multiple ones of the destination addresses. Each of the destination addresses corresponds to one of the priority levels. The switching element(s) is/are configured to receive the data items from the input links and send the data items to ones of the output links without regard to the priority levels of the data items.

Abstract translation: 交换结构包括输入链路，输出链路和至少一个交换元件。 输入链接被配置为接收包含目的地址的数据项。 至少一些数据项具有不同的优先级。 输出链接配置为输出数据项。 每个输出链路被分配多个目标地址。 每个目标地址对应于优先级之一。 开关元件被配置为从输入链路接收数据项，并且将数据项发送到输出链路中的一个，而不考虑数据项的优先级。

公开(公告)号：US07415533B1

公开(公告)日：2008-08-19

申请号：US11620473

申请日：2007-01-05

Applicant: Philippe Lacroute ,  Matthew A. Tucker

Inventor： Philippe Lacroute ,  Matthew A. Tucker

IPC: G06F15/16 ,  G06F15/173

CPC classification number: G06F15/17 ,  H04L47/10 ,  H04L47/2441 ,  H04L47/50 ,  H04L47/52 ,  H04L49/90

Abstract: A switch fabric includes input links, output links, and at least one switching element. The input links are configured to receive data items that include destination addresses. At least some of the data items have different priority levels. The output links are configured to output the data items. Each of the output links is assigned multiple ones of the destination addresses. Each of the destination addresses corresponds to one of the priority levels. The switching element(s) is/are configured to receive the data items from the input links and send the data items to ones of the output links without regard to the priority levels of the data items.

Abstract translation: 交换结构包括输入链路，输出链路和至少一个交换元件。 输入链接被配置为接收包含目的地址的数据项。 至少一些数据项具有不同的优先级。 输出链接配置为输出数据项。 每个输出链路被分配多个目标地址。 每个目标地址对应于优先级之一。 开关元件被配置为从输入链路接收数据项，并且将数据项发送到输出链路中的一个，而不考虑数据项的优先级。

公开(公告)号：US07397794B1

公开(公告)日：2008-07-08

申请号：US10300639

申请日：2002-11-21

Applicant: Philippe Lacroute ,  Matthew A. Tucker ,  John D. Weisbloom ,  Anjan Venkatramani ,  Jayabharat Boddu ,  Stefan Dyckerhoff

Inventor： Philippe Lacroute ,  Matthew A. Tucker ,  John D. Weisbloom ,  Anjan Venkatramani ,  Jayabharat Boddu ,  Stefan Dyckerhoff

IPC: H04L12/50

CPC classification number: H04L49/10 ,  H04L49/15 ,  H04L49/1507 ,  H04L49/30 ,  H04L49/3027

Abstract: A switching device includes multiple interfaces and a switch fabric. The switch fabric includes switch integrated circuits arranged in a number of stages. Multiple virtual switch planes may be implemented in the switch fabric. Data traffic received at the interfaces is selectively assigned to different ones of the virtual switch planes.

Abstract translation: 交换设备包括多个接口和交换结构。 交换结构包括以多个级布置的开关集成电路。 可以在交换结构中实现多个虚拟交换机平面。 在接口处接收到的数据流量被选择性地分配给虚拟交换机的不同的平面。

公开(公告)号：US07870291B1

公开(公告)日：2011-01-11

申请号：US12170985

申请日：2008-07-10

Applicant: Philippe Lacroute ,  Matthew A. Tucker

Inventor： Philippe Lacroute ,  Matthew A. Tucker

IPC: G06F15/16 ,  G06F15/173

CPC classification number: G06F15/17 ,  H04L47/10 ,  H04L47/2441 ,  H04L47/50 ,  H04L47/52 ,  H04L49/90

Abstract: A switch fabric includes input links, output links, and at least one switching element. The input links are configured to receive data items that include destination addresses. At least some of the data items have different priority levels. The output links are configured to output the data items. Each of the output links is assigned multiple ones of the destination addresses. Each of the destination addresses corresponds to one of the priority levels. The switching element(s) is/are configured to receive the data items from the input links and send the data items to ones of the output links without regard to the priority levels of the data items.

Abstract translation: 交换结构包括输入链路，输出链路和至少一个交换元件。 输入链接被配置为接收包含目的地址的数据项。 至少一些数据项具有不同的优先级。 输出链接配置为输出数据项。 每个输出链路被分配多个目标地址。 每个目标地址对应于优先级之一。 开关元件被配置为从输入链路接收数据项，并且将数据项发送到输出链路中的一个，而不考虑数据项的优先级。

公开(公告)号：US08165145B1

公开(公告)日：2012-04-24

申请号：US11972327

申请日：2008-01-10

Applicant: Pradeep Sindhu ,  Philippe G. Lacroute ,  Matthew A. Tucker ,  John D. Weisbloom ,  David B. Winters

Inventor： Pradeep Sindhu ,  Philippe G. Lacroute ,  Matthew A. Tucker ,  John D. Weisbloom ,  David B. Winters

IPC: H04L12/28

CPC classification number: H04L49/101 ,  H04L45/72 ,  H04L49/10 ,  H04L49/1523 ,  H04L49/30 ,  H04L49/3072 ,  H04L49/45 ,  H04L49/506 ,  H04Q3/54591

Abstract: A switching device in a network system for transferring data includes one or more source line cards, one or more destination line cards and a switching fabric coupled to the source line cards and the destination line cards to enable data communication between any source line card and destination line card. Each source line card includes a request generator to generate a request signal to be transmitted in order to obtain an authorization to transmit data. Each destination line card includes a grant generator to generate and send back a grant signal to the source line card in response to the request signal received at the destination line card to authorize the source line card to transmit a data cell to the destination line card.

Abstract translation: 用于传送数据的网络系统中的交换设备包括一个或多个源线卡，一个或多个目的线卡和耦合到源线卡和目的线卡的交换结构，以使得能够在任何源线卡和目的地之间进行数据通信 线卡 每个源线卡包括一个请求发生器，用于产生要发送的请求信号，以获得发送数据的授权。 每个目的地线路卡包括授权发生器，以响应于在目的地线路卡处接收到的请求信号来生成并发送授权信号到源线路卡，以授权源线路卡将数据信元发送到目的地线路卡。

公开(公告)号：US08000351B2

公开(公告)日：2011-08-16

申请号：US12394958

申请日：2009-02-27

Applicant: David Chengson ,  Joel Frederick Darnauer ,  Matthew A. Tucker

Inventor： David Chengson ,  Joel Frederick Darnauer ,  Matthew A. Tucker

IPC: H04J3/06 ,  H04L7/02

CPC classification number: H04L25/14 ,  H04L7/0066 ,  H04L7/033

Abstract: A high speed transmission system transfers data streams over a plurality of data links. Each data link may carry a number of bit streams. A clock signal is not transmitted over the optical link. Instead, an indication of the appropriate clock signal frequency and phase is embedded in the transmitted data. At the receiving end, a clock signal of an appropriate frequency and phase is generated. The new clock signal is used to sample and reconstruct the original data streams.

Abstract translation: 高速传输系统通过多个数据链路传输数据流。 每个数据链路可以携带多个比特流。 时钟信号不通过光链路传输。 相反，适当的时钟信号频率和相位的指示被嵌入在发送的数据中。 在接收端，产生适当频率和相位的时钟信号。 新的时钟信号用于对原始数据流进行采样和重建。

公开(公告)号：US07599308B2

公开(公告)日：2009-10-06

申请号：US11217477

申请日：2005-09-02

Applicant: Kent Laver ,  Matthew A. Tucker

Inventor： Kent Laver ,  Matthew A. Tucker

IPC: H04L12/26

CPC classification number: H04L41/00 ,  H04L43/022 ,  H04L43/08 ,  H04L43/0852 ,  H04L43/0864 ,  H04L43/087 ,  H04L43/0888 ,  H04L43/16

Abstract: A system for identifying chronic performance problems on data networks includes network monitoring devices that provide measurements of performance metrics such as latency, jitter, and throughput, and a processing system for analyzing measurement data to identify the onset of chronic performance problems. Network behavior is analyzed to develop a baseline performance level (e.g., computing a mean and variance of a baseline sample of performance metric measurements). An operating performance level is measured during operation of the network (e.g., computing a mean and variance of an operating sample of performance metric measurements). A chronic performance problem is identified if the operating performance level exceeds a performance threshold and a difference between the baseline performance level and the operating performance level is determined to be statistically significant. A t-test based on the baseline mean and variance and the operating mean and variance can be used to determine if this difference is significant.

Abstract translation: 用于识别数据网络上的慢性性能问题的系统包括提供诸如延迟，抖动和吞吐量等性能度量的测量的网络监控设备，以及用于分析测量数据以识别慢性性能问题的发作的处理系统。 分析网络行为以开发基线性能水平（例如，计算性能度量测量的基线样本的平均值和方差）。 在网络运行期间测量操作性能水平（例如，计算性能度量测量的操作样本的平均值和方差）。 如果操作性能水平超过性能阈值并且基线性能水平与操作性能水平之间的差异被确定为具有统计学意义，则会识别长期性能问题。 可以使用基于平均值和方差以及操作平均值和方差的t检验来确定该差异是否显着。

公开(公告)号：US5867483A

公开(公告)日：1999-02-02

申请号：US746416

申请日：1996-11-12

Applicant: James D. Ennis, Jr. ,  John E. Hasselkus ,  Robert J. Norberg ,  Robert Troutman ,  Matthew A. Tucker

Inventor： James D. Ennis, Jr. ,  John E. Hasselkus ,  Robert J. Norberg ,  Robert Troutman ,  Matthew A. Tucker

IPC: H04L12/24 ,  H04J3/14 ,  H04L12/26

CPC classification number: H04L41/22 ,  H04L41/0896 ,  H04L41/142 ,  H04L41/24 ,  H04L43/02 ,  H04L43/045 ,  H04L43/0882 ,  H04L43/0888 ,  H04L43/12

Abstract: A system for measuring peak throughput in packetized data networks includes a remote monitoring probe and console. The probe is connected to a packetized data network to monitor network activity, while the console is in communication with the probe via a communications medium. The probe maintains a plurality of counters associated with different ranges of utilization percentage for access channel and individual circuit bandwidth. For each sampling interval, the probe measures the access channel and individual circuit bandwidth utilization and increments the appropriate counters associated with the percentage ranges encompassing the measured bandwidth utilizations. The console polls the probe for the percentage counter data to selectively display the access channel or individual circuit bandwidth utilization in the form of a bar graph and pie chart. The access channel and/or individual circuit bandwidth may ultimately be adjusted based on the displayed data. Alternatively, the system may analyze the data and determine conservative, moderate and aggressive recommendations for bandwidth adjustment. In addition, the system can generate reports containing the access channel or individual circuit bandwidth utilization for a user-specified time period, and the recommendations for bandwidth adjustment.

Abstract translation: 用于测量打包数据网络中峰值吞吐量的系统包括一个远程监视探测器和控制台。 探测器连接到打包数据网络以监视网络活动，而控制台通过通信介质与探测器通信。 探测器保持与接入信道和单独电路带宽的不同利用率范围相关联的多个计数器。 对于每个采样间隔，探头测量访问通道和单独的电路带宽利用率，并增加与包含测量带宽利用率的百分比范围相关联的适当计数器。 控制台轮询探测器的百分比计数器数据，以条形图和饼图的形式选择性地显示访问通道或单独的电路带宽利用率。 可以基于显示的数据最终调整接入信道和/或单独的电路带宽。 或者，系统可以分析数据并确定带宽调整的保守，中等和积极的建议。 此外，系统可以生成包含用户指定时间段的接入信道或单独电路带宽利用率的报告，以及带宽调整的建议。

公开(公告)号：US07804787B2

公开(公告)日：2010-09-28

申请号：US11477868

申请日：2006-06-30

Applicant: Gordon Brandyburg ,  Naresh Kumar Kannan ,  Jeff Kobryn ,  Kent Laver ,  James Thomas Menzies ,  Thomas R. Nisbet ,  Matthew A. Tucker

Inventor： Gordon Brandyburg ,  Naresh Kumar Kannan ,  Jeff Kobryn ,  Kent Laver ,  James Thomas Menzies ,  Thomas R. Nisbet ,  Matthew A. Tucker

IPC: H04L12/26 ,  H04L12/28

CPC classification number: H04L43/026 ,  H04L43/028 ,  H04L43/045 ,  H04L43/0852 ,  H04L43/0888 ,  H04L43/10 ,  H04L43/12 ,  H04L67/327 ,  H04L69/22

Abstract: An apparatus and method are provided for analyzing traffic on a network by monitoring packets sent between devices on the network and identifying applications occurring between devices on the network based on information derived from monitoring the packets. Techniques are provided to examine header information of the packets, such as information in the header of Internet Protocol (IP) packets, to identify applications that are occurring on the network. In some cases, information about the packet beyond the header information is examined to match a packet to a particular application. Using these techniques, a list is built of all of the applications occurring between devices on the network. Parameters may be generated to track one or more of the response time, latency and traffic volume associated with a particular device on the network.

Abstract translation: 提供了一种装置和方法，用于通过监视网络上的设备之间发送的分组，并且基于从监视分组获得的信息识别出现在网络上的设备之间的应用来分析网络上的流量。 提供技术来检查分组的报头信息，例如因特网协议（IP）分组报头中的信息，以识别在网络上发生的应用。 在某些情况下，检查关于报头信息之外的分组的信息以将分组与特定应用相匹配。 使用这些技术，列出了在网络上的设备之间发生的所有应用程序。 可以生成参数以跟踪与网络上的特定设备相关联的一个或多个响应时间，等待时间和流量。