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1. 发明授权

US08649285B2 Tracking packet sequence numbers 有权
标题翻译：跟踪数据包序列号
公开(公告)号：US08649285B2
公开(公告)日：2014-02-11
申请号：US13005467
申请日：2011-01-12
申请人： Brian Fuchs , Gerald Pepper , Sanjay Cartic
发明人： Brian Fuchs , Gerald Pepper , Sanjay Cartic
IPC分类号： H04L12/26
CPC分类号： H04L43/50
摘要： Methods, traffic receivers, and computer readable storage media for testing network connections are disclosed. A traffic receiver coupled to a network under test may receive a packet. A packet group identification number (PGID and a sequence number (SN) may be extracted from the received packet. Data associated with the PGID may be retrieved from a memory, the data including a next expected sequence number (NESN), a start of run (SOR), a number of in-order packets (NIO) and a number of duplicate packets (NDP). When SN is equal to NESN, NESN and NIO may be incremented. When SN is less than NESN and SN is greater than or equal to SOR, NDP may be incremented. When SN is greater than NESN, SOR may be set to SN, NESN may be set to SN plus one, and NIO maybe incremented. Updated data may be stored in the memory.
摘要翻译：公开了用于测试网络连接的方法，业务接收器和计算机可读存储介质。耦合到被测网络的业务接收器可以接收分组。可以从接收到的分组中提取分组组标识号（PGID和序列号（SN）），可以从存储器检索与PGID相关联的数据，该数据包括下一个预期序列号（NESN），运行开始（SOR），多个顺序分组（NIO）和多个重复分组（NDP），当SN等于NESN时，NESN和NIO可以递增，当SN小于NESN，SN大于或等于 NDP可以增加，当SN大于NESN时，SOR可以设置为SN，NESN可以设置为SN加1，NIO可能增加，更新的数据可能存储在存储器中。

2. 发明申请

US20130124491A1 Efficient Pipelined Binary Search 审中-公开
标题翻译：高效的流水线二进制搜索
公开(公告)号：US20130124491A1
公开(公告)日：2013-05-16
申请号：US13294981
申请日：2011-11-11
申请人： Gerald Pepper , Sean Huang
发明人： Gerald Pepper , Sean Huang
IPC分类号： G06F17/30
CPC分类号： G06F16/90348
摘要： An apparatus and machine readable storage medium for performing a binary search of an ordered list containing 2N values, where N is an integer greater than one. The apparatus may include a pipeline having N stages numbered 1 to N in sequence. Stage M of the pipeline, where M is in integer from 1 to N, may include a memory storing 2M-1 values from the ordered list, a comparator to compare the key to a value read from the memory based on comparison results from previous stages in the pipeline, and a result storage register to store a comparison result from the comparator and the comparison results from the previous stages in the pipeline.
摘要翻译：一种用于对包含2N个值的有序列表执行二进制搜索的装置和机器可读存储介质，其中N是大于1的整数。该装置可以包括依次具有编号为1到N的N个级的管道。流水线的阶段M，其中M是从1到N的整数，可以包括存储从有序列表中的2M-1个值的存储器，比较器，用于将密钥与从存储器读取的值进行比较，以及结果存储寄存器，用于存储来自比较器的比较结果和来自流水线的前一级的比较结果。

3. 发明申请

US20110280137A1 Packet Rate Detection Apparatus and Method 有权
标题翻译：分组速率检测装置和方法
公开(公告)号：US20110280137A1
公开(公告)日：2011-11-17
申请号：US12777389
申请日：2010-05-11
申请人： Bruce Bockwoldt , John Dalmau , Gerald Pepper , Noah Gintis , Bryan Rittmeyer
发明人： Bruce Bockwoldt , John Dalmau , Gerald Pepper , Noah Gintis , Bryan Rittmeyer
IPC分类号： H04L12/26
CPC分类号： H04L12/2697 , H04L43/067 , H04L43/0876 , H04L43/16 , H04L43/50
摘要： There are disclosed an apparatus, a machine readable media, and methods for testing a network. The apparatus may include a statistics engine coupled to a memory. The statistics engine may extract a packet group identifier (PGID) from a packet received from the network and retrieve traffic statistics associated with the PGID from the memory. The retrieved traffic statistics may include a packets-per-interval count and a packets-per-interval threshold, the packets-per-interval count indicating a number of packets received within a time interval of a sequence of time intervals. At the start of each new time interval, the statistics engine may set a flag indicating whether or not the packets-per-interval count for the previous time interval was equal to or greater than the packets-per-interval threshold. The flag may be saved in the memory as part of the traffic statistics associated with the extracted PGID.
摘要翻译：公开了一种用于测试网络的装置，机器可读介质和方法。该装置可以包括耦合到存储器的统计引擎。统计引擎可以从从网络接收的分组中提取分组组标识符（PGID），并从存储器检索与PGID相关联的流量统计信息。所检索的流量统计可以包括每隔一个数据包计数和一个每隔一个数据包的阈值，每个间隔间隔计数指示在一段时间间隔的时间间隔内接收到的分组数。在每个新的时间间隔开始时，统计引擎可以设置一个标志，指示前一个时间间隔的每隔一个数据包的数量是否等于或大于每个间隔时间间隔的阈值。该标志可以作为与提取的PGID相关联的流量统计信息的一部分保存在存储器中。

4. 发明申请

US20110002228A1 Scheduler Using a Plurality of Slow Timers 有权
标题翻译：调度器使用多个慢速定时器
公开(公告)号：US20110002228A1
公开(公告)日：2011-01-06
申请号：US12496415
申请日：2009-07-01
申请人： Gerald Pepper , Brian Wilson , John Dalmau
发明人： Gerald Pepper , Brian Wilson , John Dalmau
IPC分类号： H04L12/26
CPC分类号： H04L43/50 , H04L47/50
摘要： There is disclosed a scheduler for a traffic generator and a method of scheduling traffic. A working memory may stores N respective timer values for N count-down timers, where N is an integer greater than one. An arithmetic and logic unit (ALU) may update each timer value in rotation every N cycles of a clock. A temporal interpolator may delay output data from the ALU by a selectable delay period of 1 to N cycles of the clock.
摘要翻译：公开了用于业务发生器的调度器和调度业务的方法。工作存储器可以存储N个倒数计时器的N个相应的定时器值，其中N是大于1的整数。算术和逻辑单元（ALU）可以每一个时钟的N个周期轮换每个定时器值。时间内插器可以将来自ALU的输出数据延迟1至N个时钟周期的可选延迟周期。

5. 发明申请

US20100260204A1 Traffic Receiver Using Parallel Capture Engines 有权
标题翻译：使用并行捕获引擎的流量接收器
公开(公告)号：US20100260204A1
公开(公告)日：2010-10-14
申请号：US12420771
申请日：2009-04-08
申请人： Gerald Pepper , Manley Klassen , Dwayne Hunnicutt
发明人： Gerald Pepper , Manley Klassen , Dwayne Hunnicutt
IPC分类号： H04L29/04
CPC分类号： H04L43/106 , H04L43/028 , H04L49/555
摘要： There is disclosed a method of capturing packets and packet receivers to capture packets. A timestamp may be attached to each packet received from a network. Each timestamped packet may be routed to a capture engine of a plurality of capture engines. Each of the plurality of capture engines may save at least some packets determined to match one or more of a plurality of predetermined capture criteria. A list of contiguously captured packets in time-stamp order may be prepared.
摘要翻译：公开了一种捕获分组和分组接收机以捕获分组的方法。时间戳可以附加到从网络接收的每个分组。每个时间戳分组可以被路由到多个捕获引擎的捕获引擎。多个捕获引擎中的每一个可以保存至少一些被确定为匹配多个预定捕获准则中的一个或多个的分组。可以准备以时间戳顺序连续捕获的数据包的列表。

6. 发明申请

US20090059808A1 Memory Access Optimization 有权
标题翻译：内存访问优化
公开(公告)号：US20090059808A1
公开(公告)日：2009-03-05
申请号：US12267364
申请日：2008-11-07
申请人： Gerald Pepper , Manley Klassen
发明人： Gerald Pepper , Manley Klassen
IPC分类号： H04J1/16
CPC分类号： H04L49/90 , H04L43/08 , H04L43/18 , H04L67/1097
摘要： A method and an apparatus for memory access optimization are disclosed. Data unit information may be accumulated for a plurality of data units. Partial network statistics for the plurality of data units may be read sequentially in round robin fashion from each of a plurality of memory banks of a memory. The partial networks statistics may be updated based on the plurality of data units. The updated partial network statistics may be written sequentially in round robin fashion to each of the plurality of memory banks.
摘要翻译：公开了一种用于存储器访问优化的方法和装置。可以为多个数据单元累积数据单元信息。多个数据单元的部分网络统计可以以循环方式从存储器的多个存储体中的每一个依次读取。可以基于多个数据单元来更新部分网络统计。更新的部分网络统计可以以循环方式顺序地写入多个存储体中的每一个。

7. 发明申请

US20050169277A1 Label switched data unit content evaluation 有权
标题翻译：标签交换数据单元内容评估
公开(公告)号：US20050169277A1
公开(公告)日：2005-08-04
申请号：US10768824
申请日：2004-01-30
申请人： Gerald Pepper
发明人： Gerald Pepper
IPC分类号： G06F15/16 , H04L12/24 , H04L12/26 , H04L12/28 , H04L12/56 , H04L29/06
CPC分类号： H04L69/22
摘要： Evaluation of label switched data units is disclosed. In a method, a data unit is received or obtained, and, when the data unit is a label switched data unit, a kind of an encapsulated data unit included in a message body of the data unit is determined by analyzing the message body. The method may be achieved as part of a network interface included on a board in a network testing unit and in a computing device.
摘要翻译：公开了标签交换数据单元的评估。在一种方法中，接收或获取数据单元，并且当数据单元是标签交换数据单元时，通过分析消息体来确定包括在数据单元的消息体中的封装数据单元的种类。该方法可以作为包括在网络测试单元和计算设备中的板上的网络接口的一部分来实现。

8. 发明授权

US08773984B2 Method and system for measuring network convergence time 有权
标题翻译：测量网络收敛时间的方法和系统
公开(公告)号：US08773984B2
公开(公告)日：2014-07-08
申请号：US13556028
申请日：2012-07-23
申请人： Bruce Bockwoldt , John Dalmau , Gerald Pepper , Noah Gintis , Bryan Rittmeyer
发明人： Bruce Bockwoldt , John Dalmau , Gerald Pepper , Noah Gintis , Bryan Rittmeyer
IPC分类号： G01R31/08 , H04L12/26
CPC分类号： H04L12/2697 , H04L43/067 , H04L43/0876 , H04L43/16 , H04L43/50
摘要： A method and system for measuring a convergence time of a network. Test traffic including a plurality of packet groups may be transmitted and received via the network. The network may be instructed to redirect packets belonging to a selected packet group from a first port of the network to a second port of the network. A first test port unit coupled to the first port may determine an arrival rate for the selected packet group and store a below threshold timestamp when the arrival rate first falls below a predetermined threshold rate. A second test port unit coupled to the second port may determine an arrival rate for the selected packet group and store an above threshold timestamp when the arrival rate first equals or exceeds the predetermined threshold rate. The convergence time may be determined based on the below threshold timestamp and the above threshold timestamp.
摘要翻译：一种用于测量网络收敛时间的方法和系统。可以经由网络发送和接收包括多个分组组的测试业务。可以指示网络将属于所选分组组的分组从网络的第一端口重定向到网络的第二端口。耦合到第一端口的第一测试端口单元可以确定所选分组组的到达速率，并且当到达速率首先下降到低于预定阈值速率时存储低于阈值时间戳。耦合到第二端口的第二测试端口单元可以确定所选分组组的到达速率，并且当到达速率首先等于或超过预定阈值速率时存储上述阈值时间戳。可以基于以下阈值时间戳和上述阈值时间戳来确定收敛时间。

9. 发明申请

US20110261698A1 Traffic Generator with Priority Flow Control 有权
标题翻译：具有优先流量控制的流量生成器
公开(公告)号：US20110261698A1
公开(公告)日：2011-10-27
申请号：US12766704
申请日：2010-04-23
申请人： Sushil S. Kamerkar , Limin Liu , Anup Jethra , Gerald Pepper
发明人： Sushil S. Kamerkar , Limin Liu , Anup Jethra , Gerald Pepper
IPC分类号： H04L12/26
CPC分类号： H04L43/0888 , H04L43/026 , H04L43/50 , H04L47/2441 , H04L47/25 , H04L47/30 , H04L47/33
摘要： Port units, methods, and computer readable storage media for testing a network are disclosed. A traffic generator may generate and transmit test traffic over a network under test, the test traffic including a plurality of interleaved packet streams, each traffic stream associated with one of a plurality of flow control groups. A traffic receiver may receive flow control packets from the network under test. The traffic generator may be configured to stop transmission of all packet streams associated with one or more paused flow control groups when the traffic receiver receives a flow control packet identifying the one or more paused flow control groups.
摘要翻译：公开了用于测试网络的端口单元，方法和计算机可读存储介质。业务发生器可以通过被测网络生成和发送测试业务，测试业务包括多个交织分组流，每个业务流与多个流控制组之一相关联。流量接收器可以从被测网络接收流控制分组。业务发送器可以被配置为当业务接收器接收到识别一个或多个暂停的流控制组的流控制分组时，停止与一个或多个暂停的流控制组相关联的所有分组流的传输。

10. 发明申请

US20110211593A1 Capturing Packets With Parallel Capture Engines 有权
标题翻译：捕获包并行捕获引擎
公开(公告)号：US20110211593A1
公开(公告)日：2011-09-01
申请号：US13101987
申请日：2011-05-05
申请人： Gerald Pepper , Manley Klassen , Dwayne Hunnicutt
发明人： Gerald Pepper , Manley Klassen , Dwayne Hunnicutt
IPC分类号： H04J3/24
CPC分类号： H04L43/028 , H04L43/04 , H04L43/106 , H04L49/555
摘要： There is disclosed a method of capturing packets and packet receivers to capture packets. A plurality of packets may be received form a network. A timestamp may be attached to each received packet. The timestamped received packet may be distributed among a plurality of capture engines. Each of the plurality of capture engines may store, in a respective capture memory of a plurality of capture memories, at least some timestamped received packets determined to match one or more of a plurality of predetermined capture criteria. A list in timestamp order of contiguous packets stored in the plurality of capture memories may be prepared.
摘要翻译：公开了一种捕获分组和分组接收机以捕获分组的方法。可以从网络接收多个分组。时间戳可以附加到每个接收的分组。时间戳的接收分组可以分布在多个捕获引擎中。多个捕获引擎中的每一个可以在多个捕获存储器的相应捕获存储器中存储确定为匹配多个预定捕获准则中的一个或多个的至少一些时间戳的接收分组。可以准备存储在多个捕获存储器中的连续分组的时间戳顺序的列表。

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