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Content delivery network interconnection : ウィキペディア英語版 | Content delivery network interconnection Content delivery network interconnection (CDNI) is a set of interfaces and mechanisms required for interconnecting two independent content delivery networks (CDNs) that enables one to deliver content on behalf of the other. Interconnected CDNs offer many benefits, such as footprint extension, reduced infrastructure costs, higher availability, etc., for content service providers (CSPs), CDNs, and end users. Among its many use cases, it allows small CDNs to interconnect and provides services for CSPs that allows them to compete against the CDNs of global CSPs. == Rationale ==
Thanks to the many benefits of CDNs, e.g. reduced delivery cost, improved quality of experience (QoE), and increased robustness of delivery, CDNs have become popular for large-scale content delivery of cacheable content. For this reason, CDN providers are scaling up their infrastructure and many Internet service providers (ISPs)/network service providers (NSPs) have deployed or are deploying their own CDNs for their own use or for lease, if a business and technical arrangement between them and a CDN provider were made. Those stand-alone CDNs with well-defined request routing, delivery, acquisition, accounting systems and protocols may sooner or later face either footprint, resource or capability limits. The CDNI targets at leveraging separate CDNs to provide end-to-end delivery of content from CSPs to end users, regardless of their location or attachment network.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Content delivery network interconnection」の詳細全文を読む
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