What is protocol standard define in RFC?

A protocol standard defined in a Request for Comments (RFC) is a formal document that specifies the rules, conventions, and standards for data communication protocols on the internet. RFCs are published by the Internet Engineering Task Force (IETF) and provide guidelines for various aspects of internet technology, including networking protocols, procedures, and best practices. These documents are essential for ensuring interoperability and consistency across different systems and applications on the internet.