Content Delivery Framework Having Autonomous CDN Partitioned into Multiple Virtual CDNs to Implement CDN Interconnection, Delegation, and Federation

摘要

An autonomous content delivery network (CDN) is partitioned into multiple virtual CDNs which are organized into a CDN hierarchy. Within the CDN hierarchy, a parent virtual CDN grants at least one privilege to at least one child virtual CDN. The parent virtual CDN has an instance of a CD service of a first type and the child virtual CDN has no instance of the CD service of the first type. The CD service of the first type is selected from: a rendezvous service; a streaming service, a configuration service, a control service, a collector service, and a cache service.