The increasingly important role of 5G in delivering video streaming is impacting on the content delivery network (CDN) market, because 5G brings the challenges of a highly distributed and sometimes mobile environment to the table. This has driven various trends, such as the increased use of caching at or close to the base station, and that is being followed, in turn, by increasing deployment of edge compute nodes that can support virtualized CDN as well as other telecoms or application functions. This has made Open Caching, a set of APIs that can interconnect different CDNs to deliver content optimally, an important development both in fixed and mobile networks, and a potential way to reduce the cost of supporting streamed…