Streaming Video Alliance releases open caching guidelines

DetailsMichelle Clancy | 29 April 2015

The Streaming Video Alliance (SVA), a newly formed industry forum, has published guiding principles and system attributes from its Open Caching Working Group.

The SVA was established to create an open architecture, standards and best practices to support the future of online video. As the space continues to undergo tremendous growth, the underlying streaming video infrastructure must scale quickly, efficiently and cost-effectively to meet consumer demand.

Today's Internet architecture does not support efficient, large-scale deployment of video services across all components of the delivery infrastructure. Incentives between compute, storage and network have not been optimised as part of a unified delivery system. Industry collaboration, across the streaming ecosystem, is necessary to quickly address this need and establish the architecture required to scale online video.

The Open Caching Working Group has developed proposed standards, best practices and policy to support a new layer of content caching within the ISP network, close to consumers. The Open Caching layer will perform a network function, optimising network capacity utilisation and quality of experience.

"Open caches, geographically distributed at the subscriber edge of ISP networks ... can create an aggregate scale of compute and storage resources that complements, extends and enhances that of any individual CDN," the group said. "Open caches offload large volumes of streaming traffic from both CDNs as well as the peering and aggregation path inside ISP networks, in network nodes where CDN-only caching systems could not efficiently or economically operate."