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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：US10951546B2
公开(公告)日：2021-03-16
申请号：US16503843
申请日：2019-07-05
Applicant: Cisco Technology, Inc.
Inventor： Dennis Khoa Dang Nguyen , Sha Ma , Thomas J. Edsall , Keerthi Manjunathan Swarnamanjunathan , Parvin Taheri
IPC: H04J1/16 , H04L12/935 , H04L12/927 , H04L12/867 , H04L12/863
Abstract: A first node of a packet switched network transmits at least one flow of protocol data units of a network to at least one output context of one of a plurality of second nodes of the network. The first node includes X virtual output queues (VOQs). The first node receives, from at least one of the second nodes, at least one fair rate record. Each fair rate record corresponds to a particular second node output context and describes a recommended rate of flow to the particular output context. The first node allocates up to X of the VOQs among flows corresponding to i) currently allocated VOQs, and ii) the flows corresponding to the received fair rate records. The first node operates each allocated VOQ according to the corresponding recommended rate of flow until a deallocation condition obtains for the each allocated VOQ.
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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：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：US20190036771A1
公开(公告)日：2019-01-31
申请号：US15658945
申请日：2017-07-25
Applicant: Cisco Technology, Inc.
IPC: H04L12/24 , H04L12/18 , H04L12/26 , H04L12/947
CPC classification number: H04L41/0816 , H04L12/18 , H04L12/1868 , H04L41/5025 , H04L43/08 , H04L43/0829 , H04L43/0888 , H04L49/25 , H04L49/505 , H04L49/70
Abstract: The subject disclosure relates to systems and methods for improving multicast traffic flows in a computer network. In some aspects, a method of the technology includes steps for receiving multicast traffic statistics from each of a plurality of switches in a computer network, aggregating the multicast traffic statistics into a time-series database, and identifying a low-performing multicast flow based on the time-series database. In some aspects, the method can include steps for automatically reconfiguring the computer network to improve the low-performing multicast flow. Systems and machine readable media are also provided.
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Patent Agency Ranking
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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公开(公告)号：US20240235730A1
公开(公告)日：2024-07-11
申请号：US18615604
申请日：2024-03-25
Applicant: Cisco Technology, Inc.
IPC: H04L1/00 , H04L41/22 , H04L41/5003 , H04L41/5009 , H04L67/10
CPC classification number: H04L1/0041 , H04L1/004 , H04L1/0045 , H04L1/0057 , H04L41/22 , H04L41/5009 , H04L67/10 , H04L41/5003
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：US11552905B2
公开(公告)日：2023-01-10
申请号：US17184337
申请日：2021-02-24
Applicant: Cisco Technology, Inc.
Inventor： Dennis Khoa Dang Nguyen , Sha Ma , Thomas J. Edsall , Keerthi Manjunathan Swarnamanjunathan , Parvin Taheri
IPC: H04J1/16 , H04L49/00 , H04L47/80 , H04L47/629 , H04L47/62
Abstract: A first node of a packet switched network transmits at least one flow of protocol data units of a network to at least one output context of one of a plurality of second nodes of the network. The first node includes X virtual output queues (VOQs). The first node receives, from at least one of the second nodes, at least one fair rate record. Each fair rate record corresponds to a particular second node output context and describes a recommended rate of flow to the particular output context. The first node allocates up to X of the VOQs among flows corresponding to i) currently allocated VOQs, and ii) the flows corresponding to the received fair rate records. The first node operates each allocated VOQ according to the corresponding recommended rate of flow until a deallocation condition obtains for the each allocated VOQ.
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公开(公告)号：US20210367843A1
公开(公告)日：2021-11-25
申请号：US17392987
申请日：2021-08-03
Applicant: Cisco Technology, Inc.
IPC: H04L12/24 , H04L12/18 , H04L12/947 , H04L12/26 , H04L12/931
Abstract: The subject disclosure relates to systems and methods for improving multicast traffic flows in a computer network. In some aspects, a method of the technology includes steps for receiving multicast traffic statistics from each of a plurality of switches in a computer network, aggregating the multicast traffic statistics into a time-series database, and identifying a low-performing multicast flow based on the time-series database. In some aspects, the method can include steps for automatically reconfiguring the computer network to improve the low-performing multicast flow. Systems and machine readable media are also provided.
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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.
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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