Open Caching

The Internet Engineering Task Force (IETF) Content Delivery Networks Interconnection (CDNI) Metadata Interface enables interconnected content delivery networks (CDNs) to exchange content distribution metadata in order to enable content acquisition and delivery. This document and its subparts describe extensions to the CDNI Metadata Object Model as documented in “CDNI Metadata” [RFC8006] to address the complex requirements of the commercial CDN industry and to support a wider set of use cases such as Open Caching.

This document describes the Capacity Insights Interface that allows content providers (CPs), service providers (SPs), and content delivery networks (CDNs) to exchange information to facilitate an integrated and informed end-to-end traffic steering workflow. The goal is to enable real-time traffic steering based on available capacity in an effort to keep key performance indicators (KPIs) at acceptable levels. Mechanisms such as reservations and service level agreements (SLAs) are considered out of scope for the purpose of this interface.

The SVTA Configuration Interface is a multi-part set of documents defining both the metadata model and Application Programming Interfaces (APIs) for entities to publish and retrieve configuration metadata for content caching and delivery.

This manifest specifies the SVTA document numbers and versions of each of the parts and subparts comprising a version of the Configuration Interface. Each individual document in the set is assigned a unique SVTA document number and is versioned independently. OpenAPI definitions as well as communications of compliance with this standard may make references such as Configuration Interface Version 2.0 or Configuration Interface Version 2.1. Those versions of this document manifest can be referenced to determine the SVTA document numbers and versions of the parts and subparts that comprise any given version of the Configuration Interface standard.