基于ECS的CDN精确调度现网实践与探索

Practice and Exploration of CDN Precise Scheduling Current Network Based on ECS

域名服务是因特网最基本的网络服务之一,大部分CDN需要依赖DNS来实现内容调度,域名解析的准确程度和响应速度对整个网络服务质量而言非常重要。通过分析当前传统CDN调度存在的不足,结合谷歌等公司提出的Edns-Client-Subnet扩展协议,文章提出了基于改进版ECS的CDN调度优化方案,并就具体现网实践过程中智能分区、CNAME调度、存储优化等关键要点进行阐述。

Domain name service is one of the most basic network services on the Internet.Most CDNs need to rely on DNS to realize content scheduling.The accuracy and response speed of domain name resolution are very important to the quality of service of the whole network.By analyzing the shortcomings of the current traditional CDN scheduling,combined with the Edns-Client-Subnet extension protocol proposed by Google and other companies,this paper puts forward the CDN scheduling optimization idea based on the improved version of ECS,and expounds the key points such as intelligent partition,CNAME scheduling and storage optimization in the process of network practice.