Patents by Inventor Keerthi Manjunathan Swarnamanjunathan
Keerthi Manjunathan Swarnamanjunathan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11968038Abstract: 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.Type: GrantFiled: July 19, 2021Date of Patent: April 23, 2024Assignee: Cisco Technology, Inc.Inventors: Keerthi Manjunathan Swarnamanjunathan, Chih-Tsung Huang, Kelvin Chan, Wei-Jen Huang
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Patent number: 11909522Abstract: 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.Type: GrantFiled: December 21, 2022Date of Patent: February 20, 2024Assignee: Cisco Technology, Inc.Inventors: Keerthi Manjunathan Swarnamanjunathan, Chih-Tsung Huang, Kelvin Chan, Wei-Jen Huang
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Publication number: 20240007401Abstract: 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.Type: ApplicationFiled: September 19, 2023Publication date: January 4, 2024Inventors: Dennis Khoa Dang NGUYEN, Keerthi MANJUNATHAN SWARNAMANJUNATHAN, Laura J. SHARPLESS, Kelvin CHAN, Ganga S. DEVADAS
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Patent number: 11843541Abstract: 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.Type: GrantFiled: June 4, 2021Date of Patent: December 12, 2023Assignee: Cisco Technology, Inc.Inventors: Dennis Khoa Dang Nguyen, Keerthi Manjunathan Swarnamanjunathan, Laura J. Sharpless, Kelvin Chan, Ganga S. Devadas
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Publication number: 20230123918Abstract: 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.Type: ApplicationFiled: December 21, 2022Publication date: April 20, 2023Inventors: Keerthi Manjunathan Swarnamanjunathan, Chih-Tsung Huang, Kelvin Chan, Wei-Jen Huang
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Patent number: 11552905Abstract: 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.Type: GrantFiled: February 24, 2021Date of Patent: January 10, 2023Assignee: Cisco Technology, Inc.Inventors: Dennis Khoa Dang Nguyen, Sha Ma, Thomas J. Edsall, Keerthi Manjunathan Swarnamanjunathan, Parvin Taheri
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Publication number: 20210367843Abstract: 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.Type: ApplicationFiled: August 3, 2021Publication date: November 25, 2021Inventors: Laura Sharpless, Ramanan Vaidyanathan, Keerthi Manjunathan Swarnamanjunathan
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Publication number: 20210344444Abstract: 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.Type: ApplicationFiled: July 19, 2021Publication date: November 4, 2021Inventors: Keerthi Manjunathan Swarnamanjunathan, Chih-Tsung Huang, Kelvin Chan, Wei-Jen Huang
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Publication number: 20210297352Abstract: 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.Type: ApplicationFiled: June 4, 2021Publication date: September 23, 2021Inventors: Dennis Khoa Dang NGUYEN, Keerthi MANJUNATHAN SWARNAMANJUNATHAN, Laura J. SHARPLESS, Kelvin CHAN, Ganga S. DEVADAS
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Patent number: 11102065Abstract: 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.Type: GrantFiled: December 12, 2019Date of Patent: August 24, 2021Assignee: CISCO TECHNOLOGY, INC.Inventors: Laura Sharpless, Ramanan Vaidyanathan, Keerthi Manjunathan Swarnamanjunathan
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Patent number: 11070311Abstract: 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.Type: GrantFiled: January 24, 2020Date of Patent: July 20, 2021Assignee: CISCO TECHNOLOGY, INC.Inventors: Keerthi Manjunathan Swarnamanjunathan, Chih-Tsung Huang, Kelvin Chan, Wei-Jen Huang
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Patent number: 11057305Abstract: 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.Type: GrantFiled: October 27, 2018Date of Patent: July 6, 2021Assignee: Cisco Technology, Inc.Inventors: Dennis Khoa Dang Nguyen, Keerthi Manjunathan Swarnamanjunathan, Laura J. Sharpless, Kelvin Chan, Ganga S. Devadas
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Publication number: 20210203620Abstract: 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.Type: ApplicationFiled: February 24, 2021Publication date: July 1, 2021Inventors: Dennis Khoa Dang Nguyen, Sha Ma, Thomas J. Edsall, Keerthi Manjunathan Swarnamanjunathan, Parvin Taheri
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Patent number: 10951546Abstract: 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.Type: GrantFiled: July 5, 2019Date of Patent: March 16, 2021Assignee: CISCO TECHNOLOGY, INC.Inventors: Dennis Khoa Dang Nguyen, Sha Ma, Thomas J. Edsall, Keerthi Manjunathan Swarnamanjunathan, Parvin Taheri
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Publication number: 20210006509Abstract: 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.Type: ApplicationFiled: July 5, 2019Publication date: January 7, 2021Inventors: Dennis Khoa Dang Nguyen, Sha Ma, Thomas J. Edsall, Keerthi Manjunathan Swarnamanjunathan, Parvin Taheri
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Patent number: 10764027Abstract: 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.Type: GrantFiled: July 7, 2016Date of Patent: September 1, 2020Assignee: CISCO TECHNOLOGY, INC.Inventors: Chih-Tsung Huang, Wei-Jen Huang, Kelvin Chan, Keerthi Manjunathan Swarnamanjunathan
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Patent number: 10680747Abstract: 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 running on a node, detecting, by the network device, a correctable error associated with the network packet, and encoding, by the network device, a tag within the network packet, the tag including one or more fields for storing data associated with the correctable error.Type: GrantFiled: July 28, 2016Date of Patent: June 9, 2020Assignee: CISCO TECHNOLOGY, INC.Inventors: Keerthi Manjunathan Swarnamanjunathan, Chih-Tsung Huang, Kelvin Chan, Wei-Jen Huang
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Publication number: 20200162192Abstract: 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.Type: ApplicationFiled: January 24, 2020Publication date: May 21, 2020Inventors: Keerthi Manjunathan Swarnamanjunathan, Chih-Tsung Huang, Kelvin Chan, Wei-Jen Huang
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Publication number: 20200136972Abstract: 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.Type: ApplicationFiled: October 27, 2018Publication date: April 30, 2020Inventors: Dennis Khoa Dang NGUYEN, Keerthi MANJUNATHAN SWARNAMANJUNATHAN, Laura J. SHARPLESS, Kelvin CHAN, Ganga S. DEVADAS
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Publication number: 20200112481Abstract: 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.Type: ApplicationFiled: December 12, 2019Publication date: April 9, 2020Inventors: Laura Sharpless, Ramanan Vaidyanathan, Keerthi Manjunathan Swarnamanjunathan