The Computers: Internet: Protocols: Transport Layer: TCP: (RFCs TCP )

Internet standards (STDs), Requests for Comments (RFCs), Best Current Practices (BCPs), and maybe an occasional Internet-Draft, all defining and directly related to TCP. RFCs TCP Transport Layer Protocols Internet Computers.

An RFC is authored by engineers and computer scientists in the form of a memorandum describing methods, behaviors, research, or innovations applicable to the working of the Internet and Internet-connected systems. (wikipedia)