公开(公告)号：US20150229555A1

公开(公告)日：2015-08-13

申请号：US14691745

申请日：2015-04-21

Applicant: Cisco Technology, Inc.

Inventor： Thomas J. Edsall ,  Ganga Sudharshini Devadas ,  Dennis Khoa Dang Nguyen ,  Chih-Tsung Huang

IPC: H04L12/26 ,  H04L12/801 ,  H04L12/835 ,  H04L12/861

CPC classification number: H04L43/0882 ,  G06F13/385 ,  G06F2213/3808 ,  H04L43/045 ,  H04L43/16 ,  H04L47/12 ,  H04L47/29 ,  H04L47/30 ,  H04L49/90 ,  H04L49/9005

Abstract: Presented herein are techniques for detection and characterization of buffer occupancy of a buffer in a network device. Packets are received at a network device. The packets are stored in a buffer of the network device as they are processed by the network device. An occupancy level of the buffer is sampled at a sampling rate. Occupancy levels of the buffer over time are determined from the sampling, and traffic flow through the network device is characterized based on the occupancy levels.

Abstract translation: 这里提出了用于检测和表征网络设备中的缓冲器的缓冲器占用的技术。 数据包在网络设备上被接收。 当网络设备处理时，数据包被存储在网络设备的缓冲器中。 以采样率对缓冲器的占用电平进行采样。 根据采样确定缓冲区的占用水平，通过网络设备的业务流量基于占用水平进行表征。

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：US20150103669A1

公开(公告)日：2015-04-16

申请号：US14572082

申请日：2014-12-16

Applicant: Cisco Technology, Inc.

Inventor： Thomas J. Edsall ,  Ganga Sudharshini Devadas ,  Dennis Khoa Dang Nguyen ,  Chih-Tsung Huang

IPC: H04L12/26 ,  H04L12/861

CPC classification number: H04L43/0882 ,  G06F13/385 ,  G06F2213/3808 ,  H04L43/045 ,  H04L43/16 ,  H04L47/12 ,  H04L47/29 ,  H04L47/30 ,  H04L49/90 ,  H04L49/9005

Abstract: Presented herein are techniques for detection and characterization of buffer occupancy of a buffer in a network device. Packets are received at a network device. The packets are stored in a buffer of the network device as they are processed by the network device. An occupancy level of the buffer is sampled at a sampling rate. Occupancy levels of the buffer over time are determined from the sampling, and traffic flow through the network device is characterized based on the occupancy levels.

Abstract translation: 这里提出了用于检测和表征网络设备中的缓冲器的缓冲器占用的技术。 数据包在网络设备上被接收。 当网络设备处理时，数据包被存储在网络设备的缓冲器中。 以采样率对缓冲器的占用电平进行采样。 根据采样确定缓冲区的占用水平，通过网络设备的业务流量基于占用水平进行表征。

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