公开(公告)号：US09641457B2

公开(公告)日：2017-05-02

申请号：US14702186

申请日：2015-05-01

Applicant: Cisco Technology, Inc.

Inventor： Thomas J. Edsall ,  Putu Harry Subagio ,  Alessandro Fulli ,  Christopher A. Wildman ,  Mingzhe Li ,  Wei-Jen Huang ,  Chih-Tsung Huang

IPC: H04L12/28 ,  H04L12/947 ,  H04L29/06 ,  H04L12/26 ,  H04L12/861 ,  H04L12/741

CPC classification number: H04L49/25 ,  H04L29/0653 ,  H04L43/04 ,  H04L45/74 ,  H04L45/745 ,  H04L47/12 ,  H04L47/70 ,  H04L49/251 ,  H04L49/253 ,  H04L49/3009 ,  H04L49/3063 ,  H04L49/355 ,  H04L49/9057 ,  H04L69/22

Abstract: A network device receives a packet that includes a plurality of sets of fields. Sets of fields of the packet are parsed and the field sets are evaluated as soon as they are available to determine whether a processing decision can be made on the packet. Additional field sets may be parsed from the packet and obtained in parallel with determining whether a processing decision can be made, but once it is determined that a processing decision can be made, the evaluating of field sets is terminated such that any further field sets of the packet are ignored for purposes of making a processing decision for the packet.

公开(公告)号：US09614766B2

公开(公告)日：2017-04-04

申请号：US14571493

申请日：2014-12-16

Applicant: Cisco Technology, Inc.

Inventor： Haoxiang Zhao ,  Chih-Tsung Huang ,  Wei-Jen Huang ,  Vuong Tran

IPC: H04L12/28 ,  H04L12/801 ,  H04L12/26

CPC classification number: H04L47/11 ,  H04L43/028 ,  H04L43/04 ,  H04L43/062 ,  H04L43/0852 ,  H04L43/0894 ,  H04L43/12 ,  H04L47/245 ,  H04L47/28

Abstract: Intelligent packet analysis may be provided to determine congestion problems and lead to fast solutions in low latency networks. Specifically, a congestion analyzer system may allow a user to monitor congestion on a network while using lightweight storage. A sniffer tool may be employed to capture all packets and store associated packet information into a database.

公开(公告)号：US20160380859A1

公开(公告)日：2016-12-29

申请号：US15259594

申请日：2016-09-08

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/26

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。

公开(公告)号：US09515900B2

公开(公告)日：2016-12-06

申请号：US14723748

申请日：2015-05-28

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/26 ,  G06F12/00

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.

公开(公告)号：US20160173354A1

公开(公告)日：2016-06-16

申请号：US14571493

申请日：2014-12-16

Applicant: Cisco Technology, Inc.

Inventor： Haoxiang Zhao ,  Chih-Tsung Huang ,  Wei-Jen Huang ,  Vuong Tran

IPC: H04L12/26 ,  H04L12/801

CPC classification number: H04L47/11 ,  H04L43/028 ,  H04L43/04 ,  H04L43/062 ,  H04L43/0852 ,  H04L43/0894 ,  H04L43/12 ,  H04L47/245 ,  H04L47/28

Abstract: Intelligent packet analysis may be provided to determine congestion problems and lead to fast solutions in low latency networks. Specifically, a congestion analyzer system may allow a user to monitor congestion on a network while using lightweight storage. A sniffer tool may be employed to capture all packets and store associated packet information into a database.

Abstract translation: 可以提供智能分组分析以确定拥塞问题并导致低延迟网络中的快速解决方案。 具体地，拥塞分析器系统可以允许用户在使用轻量级存储的同时监视网络上的拥塞。 可以使用嗅探器工具来捕获所有分组并将相关联的分组信息存储到数据库中。

公开(公告)号：US20150263922A1

公开(公告)日：2015-09-17

申请号：US14723748

申请日：2015-05-28

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/26

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。

公开(公告)号：US09055004B2

公开(公告)日：2015-06-09

申请号：US13767172

申请日：2013-02-14

Applicant: Cisco Technology, Inc.

Inventor： Thomas J. Edsall ,  Putu Harry Subagio ,  Alessandro Fulli ,  Christopher A. Wildman ,  Mingzhe Li ,  Wei-Jen Huang ,  Chih-Tsung Huang

IPC: H04L12/56 ,  H04L12/911 ,  H04L12/741 ,  H04L29/06 ,  H04L12/935 ,  H04L12/947 ,  H04L12/931 ,  H04L12/937

CPC classification number: H04L49/25 ,  H04L29/0653 ,  H04L43/04 ,  H04L45/74 ,  H04L45/745 ,  H04L47/12 ,  H04L47/70 ,  H04L49/251 ,  H04L49/253 ,  H04L49/3009 ,  H04L49/3063 ,  H04L49/355 ,  H04L49/9057 ,  H04L69/22

Abstract: A network device receives a packet that includes a plurality of sets of fields. Sets of fields of the packet are parsed and the field sets are evaluated as soon as they are available to determine whether a processing decision can be made on the packet. Additional field sets may be parsed from the packet and obtained in parallel with determining whether a processing decision can be made, but once it is determined that a processing decision can be made, the evaluating of field sets is terminated such that any further field sets of the packet are ignored for purposes of making a processing decision for the packet.

Abstract translation: 网络设备接收包括多组字段的分组。 对数据包的字段进行解析，并且一旦可用，即可对字段集进行评估，以确定是否可以对数据包进行处理决定。 可以从分组中分析附加的字段集，并且与确定是否可以进行处理决定并行获得，但是一旦确定可以进行处理决定，则终止场集合的评估，使得任何另外的字段集合 为了对分组进行处理决定，该分组被忽略。

公开(公告)号：US20140078915A1

公开(公告)日：2014-03-20

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

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