# US 2021/0344444 A1 · 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 2021/0344444 A1 - Document ID: US20210344444A1 - Status: Published application - Kind: A1 - Application number: 17/378,774 - Filed: 2021-07-19 - Published: 2021-11-04 - 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/US20210344444A1 ## 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: identifying, at a first network device, network traffic corresponding to an application; associating the network traffic with a unique counter, wherein the unique counter is incremented upon detection of a correctable error in the network traffic; calculating, based on the unique counter, a score for the application; inserting a corrected tag into the network traffic, wherein the corrected tag having at least a field for the unique counter; telemetering the network traffic and corrected tag to a second network device; and updating the corrected tag with an updated unique counter. ### Claim 2 (depends on 1) The method of claim 1, further comprising: calculating an updated score for the application based on the updated unique counter. ### Claim 3 (depends on 2) The method of claim 2, further comprising: inserting an updated corrected tag into the network traffic, wherein the updated corrected tag having at least a field for the updated unique counter; and telemetering the network traffic and updated corrected tag to a third network device. ### Claim 4 (depends on 1) The method of claim 1, wherein the score is also based on a timestamp. ### Claim 5 (depends on 4) The method of claim 4, wherein the corrected tag includes a field for the timestamp. ### Claim 6 (depends on 1) The method of claim 1, further comprising: generating, at least in part based on the score, an alert including an indication of a metric associated with a service level agreement; and transmitting the alert to the application. ### Claim 7 (depends on 1) The method of claim 1, further comprising: monitoring a health of the application, the health of the application based at least in part on the score. ### Claim 8 (depends on 1) The method of claim 1, further comprising: generating a graphical interface configured to depict a network-wide trend in correctable errors experienced by the application, the graphical interface based at least in part on the score relative to a period of time. ### Claim 9 A system comprising: at least one processor; and at least one memory storing instructions which, when executed by the at least one processor, cause the processor to: identify network traffic corresponding to an application; associate the network traffic with a unique counter, wherein the unique counter is incremented upon detection of a correctable error in the network traffic; calculate, based on the unique counter, a score for the application; insert a corrected tag into the network traffic, wherein the corrected tag having at least a field for the unique counter; telemeter the network traffic and corrected tag to a second network device; and update the corrected tag with an updated unique counter. ### Claim 10 (depends on 9) The system of claim 9, wherein the score is also based on a timestamp. ### Claim 11 (depends on 10) The system of claim 10, wherein the corrected tag includes a field for the timestamp. ### Claim 12 (depends on 9) The system of claim 9, further comprising instructions which, when executed by the at least one processor, causes the at least one processor to: generate, at least in part based on the score, an alert including an indication of a metric associated with a service level agreement; and transmit the alert to the application. ### Claim 13 (depends on 9) The system of claim 9, further comprising instructions which, when executed by the at least one processor, causes the at least one processor to: monitor a health of the application, the health of the application based at least in part on the score. ### Claim 14 (depends on 9) The system of claim 9, further comprising instructions which, when executed by the at least one processor, causes the at least one processor to: generate a graphical interface configured to depict a network-wide trend in correctable errors experienced by the application, the graphical interface based at least in part on the score relative to a period of time. ### Claim 15 At least one non-transitory computer-readable storage medium having stored therein instructions which, when executed by a processor, cause the processor to: identify network traffic corresponding to an application; associate the network traffic with a unique counter, wherein the unique counter is incremented upon detection of a correctable error in the network traffic; calculate, based on the unique counter, a score for the application; insert a corrected tag into the network traffic, wherein the corrected tag having at least a field for the unique counter; telemeter the network traffic and corrected tag to a second network device; and update the corrected tag with an updated unique counter. ### Claim 16 (depends on 15) The at least one non-transitory computer-readable storage medium of claim 15, wherein the score is also based on a timestamp. ### Claim 17 (depends on 16) The at least one non-transitory computer-readable storage medium of claim 16, wherein the corrected tag includes a field for the timestamp. ### Claim 18 (depends on 15) The at least one non-transitory computer-readable storage medium of claim 15, further comprising instructions which, when executed by the at least one processor, causes the at least one processor to: generate, at least in part based on the score, an alert including an indication of a metric associated with a service level agreement; and transmit the alert to the application. ### Claim 19 (depends on 15) The at least one non-transitory computer-readable storage medium of claim 15, further comprising instructions which, when executed by the at least one processor, causes the at least one processor to: monitor a health of the application, the health of the application based at least in part on the score. ### Claim 20 (depends on 15) The at least one non-transitory computer-readable storage medium of claim 15, further comprising instructions which, when executed by the at least one processor, causes the at least one processor to: generate a graphical interface configured to depict a network-wide trend in correctable errors experienced by the application, the graphical interface based at least in part on the score relative to a period of time.