TCP/IP Protocol Suite 1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 1 Introduction.

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TCP/IP Protocol Suite 1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 1 Introduction

TCP/IP Protocol Suite 2OBJECTIVES: TT o give a brief history of the Internet. TT o give the definition of the two often-used terms in the discussion of the Internet: protocol and standard. TT o categorize standard organizations involved in the Internet and give a brief discussion of each. TT o define Internet Standards and explain the mechanism through which these standards are developed. TT o discuss the Internet administration and give a brief description of each branch.

3 Chapter Outline 1.1 A Brief History 1.2 Protocols and Standards 1.3 Standards Organizations 1.4 Internet Standards 1.5 Internet Administration

TCP/IP Protocol Suite A BRIEF HISTORY A network is a group of connected, communicating devices such as computers and printers. An internet is two or more networks that can communicate with each other. The most notable internet is called the internet, composed of hundreds of thousands of interconnected networks. Private individuals as well as various organizations such as government agencies, schools, research facilities, corporations, and libraries in more than 100 countries use the Internet.

TCP/IP Protocol Suite 5 Figure 1.1 Internet today

TCP/IP Protocol Suite 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.

TCP/IP Protocol Suite STANDARDS ORGANIZATION Standards are developed through the cooperation of standards creation committees, forums, and government regulatory agencies.

TCP/IP Protocol Suite INTERNET STANDARDS An Internet standard is a thoroughly tested specification with successful implementation. It is a formalized regulation that must be followed. A specification begins as an Internet draft. A draft may be published as a RFC An Internet draft is a working document with no official status and a six-month lifetime.

TCP/IP Protocol Suite 9 Figure 1.2 Maturity levels of an RFC

TCP/IP Protocol Suite 10 Figure 1.3 Requirement levels of an RFC

TCP/IP Protocol Suite 11 RFCs can be found at Note

TCP/IP Protocol Suite INTERNET ADMINISTRATION Internet Organizations Internet Society (ISOC) Internet Architecture Board (IAB) Internet Research Task Force (IRTF) Internet Assigned Number Authority (IANA) Internet Corporation for Names and Numbers (ICANN) Network Information Center (NIC)

TCP/IP Protocol Suite 13 The addresses and websites for Internet organizations can be found in Appendix G. Note