# US 11,909,522 B2 · System and method to measure and score application health via correctable errors > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,909,522 B2 - Document ID: US11909522B2 - Status: Granted - Kind: B2 - Application number: 18/069,523 - Filed: 2022-12-21 - Published: 2023-04-20 - Granted: 2024-02-20 - Earliest claimed: 2016-06-30 - Assignees: Cisco Technology, Inc. - Applicants: Cisco Technology, Inc. - Inventors: Keerthi Manjunathan Swarnamanjunathan; Chih-Tsung Huang; Kelvin Chan; Wei-Jen Huang - Web page: https://patentgrep.com/patent/US11909522B2 ## CPC - H04L 1/0041: {Arrangements at the transmitter end} - H04L 1/004: {by using forward error control (H04L1/0618 takes precedence; coding, decoding or code conversion, for error detection or correction H03M13/00)} - H04L 1/0045: {Arrangements at the receiver end} - H04L 1/0057: {Block codes (H04L1/0061, H04L1/0064 take precedence)} - H04L 41/22: comprising specially adapted graphical user interfaces [GUI] - H04L 41/5009: Determining service level performance parameters or violations of service level contracts, e.g. violations of agreed response time or mean time between failures [MTBF] - H04L 67/10: in which an application is distributed across nodes in the network (software deployment G06F8/60; multiprogramming arrangements G06F9/46) - H04L 41/5003: Managing SLA; Interaction between SLA and QoS - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## 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. ## Claims ### Claim 1 A method comprising: receiving, by a first network device in a network, network traffic traversing the network from at least one source in the network; correcting a plurality of correctable errors associated with the network traffic; incrementing one or more counters counting each corrected error of the plurality of correctable errors associated with the network traffic; transmitting telemetry information associated with the one or more counters to a network controller associated with the network; transmitting the network traffic to a second network device in the network; monitoring at least one trend in the correctable errors corrected in the network traffic; and based at least in part on the at least one monitored trend, providing an alert with respect to a network path for an application that is the at least one source of the network traffic. ### Claim 2 (depends on 1) The method of claim 1, wherein the alert pertains to metrics associated with a service level agreement. ### Claim 3 (depends on 1) The method of claim 1, wherein the first network device is a switch. ### Claim 4 (depends on 1) The method of claim 1, wherein the correctable errors are repairable without retransmission of the network traffic. ### Claim 5 (depends on 1) The method of claim 1, wherein data associated with the at least one trend is displayed for a selected time period. ### Claim 6 (depends on 1) The method of claim 1, wherein data associated with the at least one trend is displayed as a histogram. ### Claim 7 A system for monitoring a network, the system comprising: a plurality of network devices in the network; and a network controller associated with the plurality of network devices, wherein the network controller and the network devices are configured to: receive, by one network device of the plurality of network devices, network traffic traversing the network from at least one source in the network; correct a plurality of correctable errors associated with the network traffic; increment one or more counters counting each corrected error of the plurality of correctable errors associated with the network traffic; transmit telemetry information associated with the one or more counters to the network controller; transmit the network traffic to a second network device of the plurality of network devices; monitor at least one trend in the correctable errors corrected in the network traffic; and based at least in part on the at least one monitored trend, provide an alert with respect to a network path for an application that is the at least one source of the network traffic. ### Claim 8 (depends on 7) The system of claim 7, wherein the alert pertains to metrics associated with a service level agreement. ### Claim 9 (depends on 7) The system of claim 7 wherein the plurality of network devices include a switch. ### Claim 10 (depends on 7) The system of claim 7, wherein the correctable errors are repairable without retransmission of the network traffic. ### Claim 11 (depends on 7) The system of claim 7, wherein data associated with the at least one trend is displayed for a selected time period. ### Claim 12 (depends on 7) The system of claim 7, wherein data associated with the at least one trend is displayed as a histogram. ### Claim 13 One or more non-transitory computer-readable media, including instructions which when executed at one or more network devices by one or more processors, cause the devices to: receive, by a first network device in a network, network traffic traversing the network from at least one source in the network; correct a plurality of correctable errors associated with the network traffic; increment one or more counters counting each corrected error of the plurality of correctable errors associated with the network traffic; transmit telemetry information associated with the one or more counters to a network controller associated with the network; transmit the network traffic to a second network device in the network; monitor at least one trend in the correctable errors corrected in the network traffic; and based at least in part on the at least one monitored trend, provide an alert with respect to a network path for an application that is the at least one source of the network traffic. ### Claim 14 (depends on 13) The one or more non-transitory computer-readable media of claim 13, wherein the alert pertains to metrics associated with a service level agreement. ### Claim 15 (depends on 13) The one or more non-transitory computer-readable media of claim 13, wherein the first network device is a switch. ### Claim 16 (depends on 13) The one or more non-transitory computer-readable media of claim 13, wherein the correctable errors are repairable without retransmission of the network traffic. ### Claim 17 (depends on 13) The one or more non-transitory computer-readable media of claim 13, wherein data associated with the at least one trend is displayed for a selected time period. ### Claim 18 (depends on 13) The one or more non-transitory computer-readable media of claim 13, wherein data associated with the at least one trend is displayed as a histogram.