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    Methods, systems, and computer readable media for precise measurement of switching latency of packet switching devices
    1.
    发明授权
    Methods, systems, and computer readable media for precise measurement of switching latency of packet switching devices 有权

    公开(公告)号：US09806980B2

    公开(公告)日：2017-10-31

    申请号：US14228101

    申请日：2014-03-27

    申请人： Ixia

    发明人： Michael D. Hutchison ,  Christopher M. Kowalski

    IPC分类号： H04L12/26

    CPC分类号： H04L43/50 ,  H04L43/0864

    摘要： Methods, systems, and computer readable media for precise measurement of switching latency of packet switching devices are disclosed. One method includes steps implemented in a network equipment test device including at least one processor. The method includes transmitting frames to a device under test. The method further includes receiving one of the transmitted frames from the device under test. The method further includes determining a measured latency of the device under test based on a difference between a time that the one frame was transmitted to the device under test and a time that the one frame was received from the device under test. The method further includes determining an indication of backlog latency of the device under test caused by the device under test inserting a virtual lane marker in traffic transmitted to the network equipment and reporting the indication of the backlog latency.

    DISTRIBUTED NETWORK TEST SYSTEM
    2.
    发明申请
    DISTRIBUTED NETWORK TEST SYSTEM 有权
    分布式网络测试系统

    公开(公告)号：US20140321285A1

    公开(公告)日：2014-10-30

    申请号：US13870886

    申请日：2013-04-25

    申请人： Ixia

    发明人： Chiat Earl Chew ,  Michael D. Hutchison

    IPC分类号： H04L12/26 ,  H04L12/851

    CPC分类号： H04L47/24 ,  H04L43/10 ,  H04L43/12 ,  H04L43/50

    摘要： There are disclosed a system, a test head and a method for testing a device under test. Two or more test heads may be mated directly with respective connectors on the device under test. Each test head may include a traffic generator including a stateless packet builder to generate stateless traffic for transmission to the device under test, and a traffic receiver including a stateless packet analyzer to accumulate traffic statistics on stateless traffic received from the device under test. A server coupled to the two or more test heads via respective communications links, may generate stateful traffic for transmission to the device under test by the two or more test heads, and may process stateful traffic received from the device under test by the two or more test heads.

    摘要翻译： 公开了一种用于测试被测设备的系统，测试头和方法。 两个或多个测试头可以直接与被测设备上的相应连接器配合。 每个测试头可以包括业务发生器，其包括无状态分组构建器，以生成用于传输到被测设备的无状态业务;以及业务接收器，包括无状态分组分析器，用于累积从被测设备接收到的无状态业务的流量统计。 经由相应的通信链路耦合到两个或更多个测试头的服务器可以产生用于通过两个或更多个测试头传输到被测设备的状态流量，并且可以处理由被测设备接收的状态流量由两个或多个 测试头。

    Distributed network test system
    4.
    发明授权
    Distributed network test system 有权
    分布式网络测试系统

    公开(公告)号：US09172647B2

    公开(公告)日：2015-10-27

    申请号：US13870886

    申请日：2013-04-25

    申请人： Ixia

    发明人： Chiat Earl Chew ,  Michael D. Hutchison

    IPC分类号： H04L12/26 ,  H04L12/851

    CPC分类号： H04L47/24 ,  H04L43/10 ,  H04L43/12 ,  H04L43/50

    摘要： There are disclosed a system, a test head and a method for testing a device under test. Two or more test heads may be mated directly with respective connectors on the device under test. Each test head may include a traffic generator including a stateless packet builder to generate stateless traffic for transmission to the device under test, and a traffic receiver including a stateless packet analyzer to accumulate traffic statistics on stateless traffic received from the device under test. A server coupled to the two or more test heads via respective communications links, may generate stateful traffic for transmission to the device under test by the two or more test heads, and may process stateful traffic received from the device under test by the two or more test heads.

    摘要翻译： 公开了一种用于测试被测设备的系统，测试头和方法。 两个或多个测试头可以直接与被测设备上的相应连接器配合。 每个测试头可以包括业务发生器，其包括无状态分组构建器，以生成用于传输到被测设备的无状态业务;以及业务接收器，包括无状态分组分析器，用于累积从被测设备接收到的无状态业务的流量统计。 经由相应的通信链路耦合到两个或更多个测试头的服务器可以产生用于通过两个或更多个测试头传输到被测设备的状态流量，并且可以处理由被测设备接收的状态流量由两个或多个 测试头。

    METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR PRECISE MEASUREMENT OF SWITCHING LATENCY OF PACKET SWITCHING DEVICES
    6.
    发明申请
    METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR PRECISE MEASUREMENT OF SWITCHING LATENCY OF PACKET SWITCHING DEVICES 有权
    方法，系统和计算机可读介质用于精密测量分组开关设备的切换延迟

    公开(公告)号：US20150281027A1

    公开(公告)日：2015-10-01

    申请号：US14228101

    申请日：2014-03-27

    申请人： Ixia

    发明人： Michael D. Hutchison ,  Christopher M. Kowalski

    IPC分类号： H04L12/26

    CPC分类号： H04L43/50 ,  H04L43/0864

    摘要： Methods, systems, and computer readable media for precise measurement of switching latency of packet switching devices are disclosed. One method includes steps implemented in a network equipment test device including at least one processor. The method includes transmitting frames to a device under test. The method further includes receiving one of the transmitted frames from the device under test. The method further includes determining a measured latency of the device under test based on a difference between a time that the one frame was transmitted to the device under test and a time that the one frame was received from the device under test. The method further includes determining an indication of backlog latency of the device under test caused by the device under test inserting a virtual lane marker in traffic transmitted to the network equipment and reporting the indication of the backlog latency.

    摘要翻译： 公开了用于精确测量分组交换设备的切换等待时间的方法，系统和计算机可读介质。 一种方法包括在包括至少一个处理器的网络设备测试设备中实现的步骤。 该方法包括向被测设备发送帧。 所述方法还包括从被测设备接收所发送的帧之一。 该方法还包括基于发送一帧到被测设备的时间与从被测设备接收到一帧的时间之间的差异来确定被测设备的测量等待时间。 所述方法还包括确定由被测器件引起的待测器件的积压等待时间的指示，该虚拟通道标记插入到传输到网络设备的通信中并报告积压延迟的指示。