Streaming 2.0

Open Caching Can Improve Streaming Video Delivery for Everyone

OTT operators, CDNs, ISPs, and everyone involved in streaming can benefit by embracing Open Caching.

Global internet video traffic (PB)
# of digital video viewers (MM) in the U.S.

The Face of Streaming

Avg # of CDNs per Platform
Avg # of Minutes Spent Purging from Multiple CDNs

Note: the statistics regarding CDNs used and time spent purging was collected from SVA member companies through an internal survey. The results are not statistically valid.

What is

Open Caching?

Roll over the number items in the image to display the applicable Open Caching specification. Click on the specification name in the pop-up to view that document.

Open Caching Request Routing Functional Specification

This specification describes the high-level functional specification of open caching request routing and the required interfaces to enable request routing to be performed from an upstream CDN to an open cache system.
Open Caching Request Routing Functional Specification

This specification describes the high-level functional specification of open caching request routing and the required interfaces to enable request routing to be performed from an upstream CDN to an open cache system.
Open Caching Request Routing Functional Specification

This specification describes the high-level functional specification of open caching request routing and the required interfaces to enable request routing to be performed from an upstream CDN to an open cache system.
Open Caching Request Routing Functional Specification

This specification describes the high-level functional specification of open caching request routing and the required interfaces to enable request routing to be performed from an upstream CDN to an open cache system.
Open Cache Request Routing Service Provisioning Interface Specification

The Open Caching request-routing service provisioning interfaces are the set of interfaces that enables a CDN and a SP to exchange information between them to enable the delegation of CDN content requests to the SP Open Caching system.
Open Cache Request Routing Service Provisioning Interface Specification

The Open Caching request-routing service provisioning interfaces are the set of interfaces that enables a CDN and a SP to exchange information between them to enable the delegation of CDN content requests to the SP Open Caching system.
Open Cache Request Routing Service Provisioning Interface Specification

The Open Caching request-routing service provisioning interfaces are the set of interfaces that enables a CDN and a SP to exchange information between them to enable the delegation of CDN content requests to the SP Open Caching system.
Open Cache Request Routing Service Provisioning Interface Specification

The Open Caching request-routing service provisioning interfaces are the set of interfaces that enables a CDN and a SP to exchange information between them to enable the delegation of CDN content requests to the SP Open Caching system.
Open Caching Logging Requirements Specification

Specifies requirements for Open Caching System (OCS) for Logging data to help track data acquisition and delivery of it to the end user
Open Caching Logging Requirements Specification

Specifies requirements for Open Caching System (OCS) for Logging data to help track data acquisition and delivery of it to the end user
Open Caching Performance Measurement Specification

This document specifies measuring Key Performance Indicators (KPI) of the Open Caching Nodes (OCN), specifically, both at the ingress and egress points of OCN within an ISP environment
Open Caching Performance Measurement Specification

This document specifies measuring Key Performance Indicators (KPI) of the Open Caching Nodes (OCN), specifically, both at the ingress and egress points of OCN within an ISP environment
Open Caching Relayed Token Authentication

This document specifies relayed token authentication for open caching to support generic workflow for CDN Uniform Resource Identifier (URI) signing use the relayed tokenization mechanism
Open Caching Relayed Token Authentication

This document specifies relayed token authentication for open caching to support generic workflow for CDN Uniform Resource Identifier (URI) signing use the relayed tokenization mechanism
Open Caching Content Management Operations Specification

This document specifies Open Caching Content Management interface and the functionality requirements from the ISP Open Caching system and interface between the SP Open Caching Controller and the CDN
Open Caching Content Management Operations Specification

This document specifies Open Caching Content Management interface and the functionality requirements from the ISP Open Caching system and interface between the SP Open Caching Controller and the CDN
Open Caching Content Management Operations Specification

This document specifies Open Caching Content Management interface and the functionality requirements from the ISP Open Caching system and interface between the SP Open Caching Controller and the CDN
Open Caching Content Management Operations Specification

This document specifies Open Caching Content Management interface and the functionality requirements from the ISP Open Caching system and interface between the SP Open Caching Controller and the CDN
The Components Of An

Open Caching Network

The architectural diagram above describes the flow of traffic through Open Caches in an Open Caching Network, illustrating the interoperability between Content Owner, ISP, and CDN. Driving that interoperability are the core components, connected through APIs, which enable the fundamental capabilities to mange delivery, caching, logging, and more.

Caching Node

An Open Caching Node represents a caching server, within a content delivery architecture, that complies with Open Caching specifications. The cache can either be built using the specifications (such as for an ISP implementing Open Caching at the edge of their network), or Open Caching functionality can be added through plugins or other means (such as for a Content Delivery Network caches or OTT Platform origins).

Specifications

Click on the button below to access the specifications related to the Open Caching Nodes.

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Request Router

The Request Router handles the inbound request for content and forwards this request to the appropriate caching node within an environment. The Open Caching specifications identify three methods of routing: DNS, HTTP, and Manifest.

Specifications

Click on the button below to access the specifications related to the Request Router component.

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Control Plane

The Control Plane handles all communication related to management of configurations, content purging and pre-positioning, logging, and security. While the Request workflow is focused on the end user’s ability to retrieve content, the Control Plane is focused on how the different members of the video distribution chain are empowered to partake in the delivery process.

Specifications

Click on the button below to access the specifications related to the Control Plane component.

View the Documents

Open Caching Technical Specifications

The SVA’s Open Caching is a series of functional requirements and specifications. The functional requirements define the network architecture and functionality, while the specifications define the functionality through API operation. The SVA LABS initiative then codifies the specifications into working reference code. All of the functional requirements and specifications can be found below. They are available free to the public.

Companies Committed to Open Caching

Below are the companies actively involved in the development of SVA Open Caching documents and/or code.

Other Open Caching Resources

Interested in Contributing? Join the Alliance Today!

Whether you are a technology vendor, network operator, or content owner in the streaming video space, you need a seat at the Open Caching table. Come help us design and build the video caching system of the future!

The Streaming Video Alliance is a global technical consortia with contributing companies from across the video ecosystem. Open Caching is one of the Alliance’s working groups. You can learn more about the Alliance, and how to participate, by visiting the website at www.streamingvideoalliance.org.

Other Alliance Resources