tailieunhanh - Lecture TCP-IP protocol suite (3/e): Chapter 1 - Behrouz Forouzan

Upon completion you will be able to: Understand how the internet came into being, understand the meaning of the terms protocol and standard, understand the various organizations involved in the standards, understand the different levels of internet service providers, understand the groups involved in Internet administration. | Chapter 1 Objectives Upon completion you will be able to: Introduction Understand how the Internet came into being Understand the meaning of the terms protocol and standard Understand the various organizations involved in the standards Understand the different levels of Internet service providers Understand the groups involved in Internet administration A Brief History A network is a group of connected, communicating devices. An internet is two or more networks that can communicate with each other. The most notable internet is called the Internet. Millions of people are users. Yet this extraordinary communication system only came into being in 1969. The topics discussed in this section include: ARPANET Birth of the Internet Transmission Control Protocol / Internetworking Protocol MILNET CSNET, NSFNET & ANSNET The Internet Today Time Line Growth of the Internet Figure Internet today Protocols and Standards In this section, we define two widely used terms: protocols and standards. First, we define protocol, which is synonymous with “rule.” Then we discuss standards, which are agreed-upon rules. The topics discussed in this section include: Protocols Standards Standards Organizations Standards are developed through the cooperation of standards creation committees, forums, and government regulatory agencies. The topics discussed in this section include: Standards Creation Committees Forums Regulatory Agencies The websites for the standardization organizations are given in Appendix F. Note: Internet Standards An Internet standard is a thoroughly tested specification. There is a strict procedure by which a specification attains Internet standard status. A specification begins as an Internet draft, working document with no official status and a six-month lifetime. A draft may be published as a Request for Comment (RFC). The topics discussed in this section include: Maturity Levels Requirement Levels Figure Maturity levels of an RFC Figure Requirement levels of an RFC RFCs can be found at Note: Internet Administration The Internet has evolved and gained a broader user base with significant commercial activity. Various groups that coordinate Internet issues have guided this growth and development. The topics discussed in this section include: Internet Society (ISOC) Internet Architecture Board (IAB) Internet Engineering Task Force (IETF) Internet Research Task Force (IRTF) Internet Assigned Numbers Authority (IANA) Names and Numbers (ICANN) Network Information Center (NIC) Figure Internet administration The websites for Internet organizations can be found in Appendix F. Note: