Patent ID: 9531628
Filing Date: 2016-12-27
CPC Classification: H04L

Claim Text:
1. A method operative in a content delivery network (CDN), the content delivery network including a domain name request handling mechanism that generates maps for use in directing client requests to subsets of CDN servers, comprising: collecting TCP connection data statistics at subsets of CDN servers, the TCP connection data statistics collected as the subsets of CDN servers process client requests that have been directed thereto at least in part by operation of the domain name request handling mechanism, wherein a given CDN server includes an operating system kernel, and a user-space process, wherein collecting TCP connection data statistics from the given CDN server includes: periodically aggregating the TCP connection data statistics collected from the subsets of CDN servers, the TCP connection data statistics including the per-connection statistic generated by the given CDN server; providing the periodically-aggregated TCP connection data statistics to the domain name request handling mechanism; determining, using the periodically-aggregated TCP connection data statistics as feedback, whether a map generated by the domain name request handling mechanism met a given quality of service; and based at least in part on a determination that the given quality of service was not met, generating a new map having a modified CDN server mapping.