TCP IP Protocol suite Chap-01 Intro

8/7/2019 TCP IP Protocol suite Chap-01 Intro

1/13

TCP/IP Protocol Suite 1

Chapter 1Chapter 1

Objectives

Upon completion you will be able to:

IntroductionIntroduction

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


2/13


1.1 A Brief History

A network is a group of connected, communicating devices.AnA network is a group of connected, communicating devices.An internetinternet

is two or more networks that can communicate with each other. The mostis two or more networks that can communicate with each other. The most

notable internet is called thenotable internet is called theInternetInternet. Millions of. Millions of people are users. Yetpeople are users. Yet

this extraordinary communication system only came into being in 1969.this extraordinary communication system only came into being in 1969.

The topics discussed in this section include:The topics discussed in this section include:

ARPANETARPANET

Birth of the InternetBirth of the Internet

Transmission ControlProtocol / InternetworkingProtocolTransmission ControlProtocol / InternetworkingProtocol

MILNETMILNET

CSNET, NSFNET &ANSNETCSNET, NSFNET &ANSNETThe Internet TodayThe Internet Today

Time LineTime Line

Growth of the InternetGrowth of the Internet


3/13


Figure 1.1 Internet today


4/13


1.2 Protocols and Standards

In this section, we define two widely used terms: 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 weFirst, we define protocol, which is synonymous with rule. Then we

discuss standards, which are agreeddiscuss standards, which are agreed--upon rules.upon rules.


ProtocolsProtocols

StandardsStandards


5/13


1.3 Standards Organizations

Standards are developed through the cooperation of standards creationStandards are developed through the cooperation of standards creation

committees, forums, and government regulatory agencies.committees, forums, and government regulatory agencies.


Standards Creation CommitteesStandards Creation Committees

ForumsForums

RegulatoryAgenciesRegulatoryAgencies


6/13


The websites for the standardizationThe websites for the standardization

organizations are given in Appendix F.organizations are given in Appendix F.

Note:Note:


7/13


1.4 Internet Standards

An Internet standard is a thoroughly tested specification. There is a strictAn Internet standard is a thoroughly tested specification. There is a strict

procedure by which a specification attains Internet standard status. Aprocedure by which a specification attains Internet standard status. A

specification begins as an Internet draft, working document with nospecification begins as an Internet draft, working document with no

official status and a sixofficial status and a six--month lifetime. A draft may be published as amonth lifetime. A draft may be published as a

Request for Comment (RFC).Request for Comment (RFC).


Maturity LevelsMaturity Levels

Requirement LevelsRequirement Levels


8/13


Figure 1.2 Maturity levels of an RFC


9/13


Figure 1.3 Requirement levels of an RFC


10/13


RFCs can be found at

www.faqs.org/rfcs

Note:Note:


11/13


1.5 Internet Administration

The Internet has evolved and gained a broader user base with significantThe Internet has evolved and gained a broader user base with significant

commercial activity. Various groups that coordinate Internet issues havecommercial activity. Various groups that coordinate Internet issues have

guided this growth and development.guided this growth and development.


Internet Society (ISOC)Internet Society (ISOC)

InternetArchitecture Board (IAB)InternetArchitecture Board (IAB)

InternetEngineering Task Force (IETF)InternetEngineering Task Force (IETF)

InternetResearch Task Force (IRTF)InternetResearch Task Force (IRTF)

InternetAssignedNumbers Authority (IANA)InternetAssignedNumbers Authority (IANA)

Names andNumbers (ICANN)Names andNumbers (ICANN)

Network Information Center (NIC)Network Information Center (NIC)


12/13


Figure 1.4 Internet administration


13/13


The websites for Internet

organizations can be found inAppendix F.

Note:Note:

TCP IP Protocol suite Chap-01 Intro

Documents

Transcript of TCP IP Protocol suite Chap-01 Intro