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    Timestamping packets in a network
    46.
    再颁专利
    Timestamping packets in a network 有权

    公开(公告)号：USRE49806E1

    公开(公告)日：2024-01-16

    申请号：US16400117

    申请日：2019-05-01

    Applicant: Cisco Technology, Inc.

    Inventor： Thomas J. Edsall ,  Wei-Jen Huang ,  Chih-Tsung Huang ,  Yichou Lin

    IPC: H04J3/14 ,  H04J3/24 ,  G06F15/16 ,  H04L29/08 ,  H04L12/26 ,  H04B7/212 ,  H04L12/28 ,  H04L43/0852 ,  H04L43/106 ,  H04L69/321

    CPC classification number: H04L43/0852 ,  H04L43/106 ,  H04L69/321

    Abstract: Techniques are presented herein to facilitate latency measurements in a networking environment. A first network device receives a packet for transport within a network domain that comprises a plurality of network devices. The plurality of network devices have a common time reference, that is, they are time synchronized. The first network device generates timestamp information indicating time of arrival of the packet at the first network device. The first network device inserts into the packet a tag that comprises at least a first subfield and a second subfield. The first subfield comprising a type indicator to signify to other network devices in the network domain that the tag includes timestamp information, and the second subfield includes the timestamp information. The first network device sends the packet from to into the network domain to another network device. Other network devices which receive that packet can make latency measurements.

    SYSTEM AND METHOD TO MEASURE AND SCORE APPLICATION HEALTH VIA CORRECTABLE ERRORS
    47.
    发明申请
    SYSTEM AND METHOD TO MEASURE AND SCORE APPLICATION HEALTH VIA CORRECTABLE ERRORS 有权

    公开(公告)号：US20210344444A1

    公开(公告)日：2021-11-04

    申请号：US17378774

    申请日：2021-07-19

    Applicant: Cisco Technology, Inc.

    Inventor： Keerthi Manjunathan Swarnamanjunathan ,  Chih-Tsung Huang ,  Kelvin Chan ,  Wei-Jen Huang

    IPC: H04L1/00 ,  H04L12/24 ,  H04L29/08

    Abstract: Disclosed are systems, methods, and non-transitory computer-readable storage media for monitoring application health via correctable errors. The method includes identifying, by a network device, a network packet associated with an application and detecting an error associated with the network packet. In response to detecting the error, the network device increments a counter associated with the application, determines an application score based at least in part on the counter, and telemeters the application score to a controller. The controller can generate a graphical interface based at least in part on the application score and a timestamp associated with the application score, wherein the graphical interface depicts a trend in correctable errors experienced by the application over a network.

    MULTI-DESTINATION PACKET REDACTION
    48.
    发明申请
    MULTI-DESTINATION PACKET REDACTION 有权

    公开(公告)号：US20210160196A1

    公开(公告)日：2021-05-27

    申请号：US17164289

    申请日：2021-02-01

    Applicant: Cisco Technology, Inc.

    Inventor： Chih-Tsung Huang ,  Wei-Jen Huang ,  Kelvin Chan ,  Chiapeng Wu

    IPC: H04L12/939 ,  G06F21/62 ,  H04L29/06 ,  H04L12/931

    Abstract: Presented herein are techniques for redacting mirrored network packets prior to providing the mirrored packets to an intended recipient application, such as a third-party analysis application. More specifically, a multi-destination packet redaction device obtains mirrored network traffic that comprises one or more mirrored network packets. The multi-destination packet redaction device filters the mirrored network traffic to determine an intended recipient application of the one or more mirrored network packets and applies a redaction process to redact one or more portions of at least one of the one or more mirrored network packets. The redaction process is customized based on one or more attributes of the intended recipient application.

    APPLICATION-AWARE LINKS
    49.
    发明申请
    APPLICATION-AWARE LINKS 审中-公开

    公开(公告)号：US20190386912A1

    公开(公告)日：2019-12-19

    申请号：US16011302

    申请日：2018-06-18

    Applicant: Cisco Technology, Inc.

    Inventor： Chih-Tsung Huang ,  Wei-Jen Huang

    IPC: H04L12/703 ,  H04L12/707 ,  H04L12/26

    Abstract: The present technology is directed to a system and method for application aware management and recovery of link failures resulting from excessive errors observed on the link. One aspect of the proposed technology is based on identification of link errors associated with application-specific data patterns traversing link. Other aspects involve corrective actions based on relocation or modification of specific application traffic to thereby alleviate the observed excessive link errors and prevent a link failure or shut down. Relocation may involve moving the source application to a different virtual machine/container/physical device or rerouting application traffic by updating relevant routing protocols. Modification may involve harmlessly changing payload data pattern to remove data-pattern dependent signal attenuation. Information corresponding to identified faulty payload data patterns and associated frame data quality parameters maybe stored and utilized to provide analytics evaluation of network wide physical resource issues that maybe affecting application traffic.

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