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公开(公告)号：US12192104B2
公开(公告)日：2025-01-07
申请号：US18470153
申请日：2023-09-19
Applicant: Cisco Technology, Inc.
Inventor： Dennis Khoa Dang Nguyen , Keerthi Manjunathan Swarnamanjunathan , Laura J. Sharpless , Kelvin Chan , Ganga S. Devadas
IPC: H04L47/12 , H04L5/00 , H04L41/5009 , H04L43/062 , H04L47/11 , H04L49/25 , H04L49/50
Abstract: Techniques for identifying network congestion and adapting network performance to relieve the network congestion are described. As described, a network element such as a switch reports network congestion indicators such as link level control frames to a network controller. The network controller uses the network congestion indicators reported from the network elements to identify congestion points, data traffic, and data flows experiencing congestion at a network level. The network controller then determines optimized control parameters for the network in order to reduce or alleviate the congestion at the congestion points.
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公开(公告)号：US20180013541A1
公开(公告)日：2018-01-11
申请号：US15204937
申请日：2016-07-07
Applicant: Cisco Technology, Inc.
Abstract: Technologies for calibrated network interlink access. In some embodiments, a system can calculate a first communication latency of a first link between a first processing element in a first switch and a second processing element in a second switch, and a second communication latency associated with a second link between the first processing element and a third processing element in a third switch. The system can determine a delta between the first communication latency and the second communication latency, and whether respective clock rates of the first switch, second switch, and third switch have a clock rate variation, to yield a clock rate variation determination. Based on the delta and clock rate variation determination, the system can determine an offset value for synchronizing the first communication latency and second communication latency. Based on the offset value, the system can calibrate traffic over the first link and/or the second link.
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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
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。
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公开(公告)号：US09037670B2
公开(公告)日：2015-05-19
申请号：US13708380
申请日：2012-12-07
Applicant: Cisco Technology, Inc.
Inventor： Kelvin Chan , Ganga S. Devadas , Chih-Tsung Huang , Wei-Jen Huang , Dennis K. D. Nguyen , Yue J. Yang
IPC: G06F15/167 , H04L12/861
CPC classification number: H04L49/9042 , G06F15/167 , H04L49/9057 , H04L49/9094
Abstract: Buffer designs and write/read configurations for a buffer in a network device are provided. According to one aspect, a first portion of the packet is written into a first cell of a plurality of cells of a buffer in the network device. Each of the cells has a size that is less than a minimum size of packets received by the network device. The first portion of the packet can be read from the first cell while concurrently writing a second portion of the packet to a second cell.
Abstract translation: 提供缓冲区设计和网络设备中缓冲区的写/读配置。 根据一个方面，分组的第一部分被写入网络设备中的缓冲器的多个单元的第一单元中。 每个小区的大小小于由网络设备接收的分组的最小大小。 可以从第一小区读取分组的第一部分，同时将分组的第二部分写入第二小区。
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公开(公告)号：US11463383B2
公开(公告)日：2022-10-04
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: H04L49/552 , G06F21/62 , H04L9/40 , H04L49/201 , H04L47/34
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.
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Patent Agency Ranking
公开(公告)号：US10965620B2
公开(公告)日：2021-03-30
申请号：US16433485
申请日：2019-06-06
Applicant: Cisco Technology, Inc.
Inventor： Chih-Tsung Huang , Wei-Jen Huang , Kelvin Chan , Chiapeng Wu
IPC: H04L12/939 , G06F21/62 , H04L29/06 , H04L12/931 , H04L12/801
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.
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公开(公告)号：US20200162192A1
公开(公告)日：2020-05-21
申请号：US16752299
申请日：2020-01-24
Applicant: Cisco Technology, Inc.
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.
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公开(公告)号：US10361973B2
公开(公告)日：2019-07-23
申请号：US15623510
申请日：2017-06-15
Applicant: Cisco Technology, Inc.
Inventor： Chih-Tsung Huang , Wei-Jen Huang , Kelvin Chan , Chiapeng Wu
IPC: H04L12/939 , H04L12/931 , G06F21/62 , H04L29/06 , H04L12/801
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.
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公开(公告)号：US20180367472A1
公开(公告)日：2018-12-20
申请号：US15623510
申请日：2017-06-15
Applicant: Cisco Technology, Inc.
Inventor： Chih-Tsung Huang , Wei-Jen Huang , Kelvin Chan , Chiapeng Wu
IPC: H04L12/939 , H04L12/931
CPC classification number: H04L49/552 , G06F21/6254 , H04L47/34 , H04L49/201 , H04L63/04 , H04L63/308
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.
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公开(公告)号：US20180006917A1
公开(公告)日：2018-01-04
申请号：US15198085
申请日：2016-06-30
Applicant: Cisco Technology, Inc.
CPC classification number: H04L1/0041 , H04L1/004 , H04L1/0045 , H04L1/0057 , H04L41/22 , H04L41/5003 , H04L41/5009 , H04L67/10
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.
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