Summary

Recommendation ITU-T F.744.5 describes the requirements for a peer-to-peer content delivery network (P2P CDN). It specifies the overall functional architecture, domains and functional role relationships, functional blocks and their mutual relationships, service provision requirements, availability requirements, scalability requirements and security considerations. P2P CDN provides a scalable and elastic CDN function pool of shareable terminal device computing resources, storage resources and uplink bandwidth to save loads of the current CDN and improve user experience.