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    Measuring latency within a networking device
    103.
    发明授权
    Measuring latency within a networking device 有权
    测量网络设备内的延迟

    公开(公告)号：US09094307B1

    公开(公告)日：2015-07-28

    申请号：US13708305

    申请日：2012-12-07

    Applicant: Cisco Technology, Inc.

    Inventor： Thomas J. Edsall ,  Wei-Jen Huang ,  Chih-Tsung Huang ,  Kelvin Chan

    IPC: H04L12/26 ,  H04L12/56 ,  G06F9/26

    CPC classification number: H04L43/0858 ,  H04L43/028 ,  H04L43/062 ,  H04L43/106

    Abstract: Presented herein are techniques to measure latency associated with packets that are processed within a network device. A packet is received at a component of a network device comprising one or more components. A timestamp representing a time of arrival of the packet at a first point in the network device is associated with the packet. The timestamp is generated with respect to a clock of the network device. A latency value for the packet is computed based on at least one of the timestamp and current time of arrival at a second point in the network device. One or more latency statistics are updated based on the latency value.

    Abstract translation: 这里提出的是测量与在网络设备内处理的分组相关联的延迟的技术。 在包括一个或多个组件的网络设备的组件处接收分组。 表示分组在网络设备中的第一点的到达时间的时间戳与分组相关联。 相对于网络设备的时钟生成时间戳。 基于网络设备中的第二点的到达时间戳和当前时间中的至少一个来计算分组的等待时间值。 基于延迟值更新一个或多个延迟统计信息。

    Exporting real time network traffic latency and buffer occupancy
    104.
    发明授权
    Exporting real time network traffic latency and buffer occupancy 有权
    导出实时网络流量延迟和缓冲区占用

    公开(公告)号：US09077619B2

    公开(公告)日：2015-07-07

    申请号：US13708265

    申请日：2012-12-07

    Applicant: Cisco Technology, Inc.

    Inventor： Thomas J. Edsall ,  Yue J. Yang ,  Wei-Jen Huang ,  Chih-Tsung Huang

    IPC: H04L12/26 ,  H04L12/851 ,  H04L12/835

    CPC classification number: H04L43/045 ,  H04L43/08 ,  H04L43/0882 ,  H04L43/10 ,  H04L47/24 ,  H04L47/30

    Abstract: Techniques are presented herein to facilitate the monitoring of occupancy of a buffer in a network device. Packets are received at a network device. Information is captured describing occupancy of the buffer caused by packet flow through the buffer in the network device. Analytics packets are generated containing the information. The analytics packets from the network device for retrieval of the information contained therein for analysis, replay of buffer occupancy, etc.

    Abstract translation: 这里呈现技术以便于监视网络设备中的缓冲器的占用。 数据包在网络设备上被接收。 捕获的信息描述了通过网络设备中的缓冲器的分组流引起的缓冲区的占用。 生成包含该信息的分析数据包。 来自网络设备的用于检索其中所包含的信息的分析分组用于分析，重放缓冲器占用等

    INCAST DROP CAUSE TELEMETRY
    106.
    发明申请
    INCAST DROP CAUSE TELEMETRY 审中-公开

    公开(公告)号：US20150124824A1

    公开(公告)日：2015-05-07

    申请号：US14484181

    申请日：2014-09-11

    Applicant: Cisco Technology, Inc.

    Inventor： Thomas J. Edsall ,  Mohammadreza Alizadeh Attar

    IPC: H04L12/823 ,  H04L12/863 ,  H04L12/741

    CPC classification number: H04L47/20 ,  H04L12/4645 ,  H04L41/0893 ,  H04L45/74 ,  H04L45/7457 ,  H04L47/32 ,  H04L47/62 ,  H04L63/10 ,  H04L63/164 ,  H04L63/20

    Abstract: Aspects of the subject disclosure relate to ways to capture packet metadata following an incast event. In some implementations, a method of the subject technology can include steps for receiving a plurality of data packets at a network device, storing each of the plurality of packets in a buffer, and detecting a packet drop event for one or more incoming packets, wherein the one or more incoming packets are not stored in the queue. In some aspects, the method can further include steps for indicating a marked packet from among the received data packets, dequeuing each of the plurality of packets in the buffer, capturing metadata for each dequeued packet until the marked packet is dequeued.

    Abstract translation: 主题公开的方面涉及到在乱七八糟的事件之后捕获分组元数据的方式。 在一些实施方式中，本技术的方法可以包括用于在网络设备处接收多个数据分组的步骤，将多个分组中的每一个存储在缓冲器中，并检测一个或多个输入分组的分组丢弃事件，其中 一个或多个传入分组不存储在队列中。 在一些方面，该方法还可以包括用于从接收的数据分组中指示标记分组的步骤，对缓冲器中的多个分组中的每一个进行排队，捕获每个出队分组的元数据，直到标记分组出队。

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