Akamai CDN中的幾個重要組件
mapping system 調度系統(映射client到edge cluster，進而到edge server)
edge server platform 邊緣服務器系統
transport system 分層(tired)回源系統
communications and control system 通信與控制系統(收集狀態信息，下發控制消息，配置更新等等)
data collection and analysis system 數據收集和分析系統(server log，client log， network and server information),又名Query系統
management portal 管理portal(配置更新，業務指標展示)
輔助系統和服務
DNS
Monitoring Agents
Global Traffic Manager
Storage
Client Slide Delivery (p2p)
下面對各分系統做進一步說明：
mapping system:
scoring part, collecting and processing historic and real-time data---including
real-time mapping part, two main steps:
map to cluster
map to server
Edge Server Platform(metadata configuration)
origin server location
cache control
cache indexing
Access control
Response to origin server failure
Header alteration
EdgeComputing
Performance optimization
Communications and Control System包括:
real-time distribution of status and control information
point-to-point RPC and Web Services
Dynamic configuration updates
key management infrastructure
software and machine configuration management
Data Collection and Analysis System包括：
Log collection
Real-time data collection and monitering
Analytics and Reporting
參考文獻
[1].the-akamai-network-a-platform-for-high-performance-internet-applications-technical-publication.pdf