Which organization established the data-over-cable-service-interface-specification (DOCSIS)?

The organization that established the Data-Over-Cable Service Interface Specification (DOCSIS) is indeed CableLabs. This specification is crucial for enabling high-speed internet access over existing cable television systems, essentially allowing cable operators to offer broadband services.

CableLabs is a nonprofit research and development consortium that focuses on promoting innovation in the cable industry, and it plays a key role in developing standards and specifications that enhance cable technology. By establishing DOCSIS, CableLabs has provided a framework that ensures interoperability and performance across various cable modems and infrastructure, making it vital for cable operators.

While the other organizations mentioned have significant roles in telecommunications and broadcasting, they did not develop the DOCSIS standard. The Federal Communications Commission (FCC) regulates communication channels but does not set technical specifications. Similarly, the Institute of Electrical and Electronics Engineers (IEEE) is responsible for various networking and telecommunications standards but is unrelated to the DOCSIS initiatives. The National Association of Broadcasters (NAB) focuses more on broadcasting and media rather than cable technology standards. Therefore, CableLabs is correctly identified as the entity behind DOCSIS.