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Introduction to TCP/IP Networks

Chapter Objectives

Understand what TCP/IP Understand scope of TCP/IP networks Explore classroom network setup Understand the Internet

Introduction to TCP/IP Networks

scope of TCP/IP networks Origins of TCP/IP networks

Multivendor Support

TCP/IP Application Services

Classroom Network

The Internet

What is TCP/IP??

What is TCP/IP(continued)

What is TCP/IP(continued)

The Defense Advanced Research Projects Agency (DARPA) Requirement In the late 1960s, DARPA noticed the following trends: - Rapid proliferation of computers in military

communications- Deployment of multivendor equipment in communication

networks The U.S. Department of Defense (DoD) mandated a common set

of protocols- Advantages are

-- Procurement simplification-- Competition-- Interoperability -- Vendor productivity and efficiency

As a result of DoD efforts, the ARPAnet was formed, which later evolved into the Internet

The Internet community

Earlier Internet community consisted of- Universities

-- Stanford, UCLA, Massachusetts Institute of Technology (MIT)

-- UCSB-- University of Utah, University of Hawaii

- Research organizations-- SRI International, Rand Corporation-- The Institute of Advanced Computation-- Bolt, Beranek, and Newman (BBN)

Current Internet Community includes- All major universities- Research organizations- Corporations- Individual users

Introduction to TCP/IP networks

Scope of TCP/IP Networks

Multivendor Support

Origins of TCP?IP Networks

TCP/IP Application Services

Classroom Networks

The Internet

Proprietary Networks

Early commercial computer network

- Proprientary solutions

-- Examples: IBM’s SNA, DEC’s DECnet

- Locked users to vendor platform

Proprietary Networks (continued)

Commercial Uses of TCP/IP

Driving Force Behind TCP/IP Support

Currently, the driving force behind TCP/IP support is

- Growth in network-management tools

- Promise of interoperability

- Commercialization of the Internet Most widely implemented network-management protocol is

- Simple Network Management Protocol (SNMP)

-- Makes use of TCP/IP protocols

Introduction to TCP/IP Networks

Origins of TCP/IP Networks

Classroom Networks

The Internet

Multivendor Support

TCP/IP Application Services

Scope of TCP/IP Networks

TCP/IP ApplicationsTCP/IP Applications

A few popular application-level services are

- Terminal emulation (TELNET)

- File Transfer Protocol (FTP)

- Simple Mail Transfer Protocol (SMTP)

- Network File System (NFS)

- Simple Network Management Protocol (SNMP)

- Domain Name System (DNS)

TCP/IP Applications (continued)

Application Services Chart

Introduction to TCP/IP Networks

Classroom Network Configuration: 10Base-T Ethernet

Workstation Configuration: UNIX and DOS

Classroom Hosts and Servers

Software Tools for TCP/IP Applications Services

For Unix workstations

- Unix with TCP/IP software Protocol analysis tool

- LANWATCH from FTP Software For DOS workstations

WinQVT from QPC Software NCSA TELNET and FTP protocols PC/TCP from FTP Software Son Of Stan Server (SOSS) NetManage’s Chameleon

Hands-On Exercise 1.1: Warm-Up

Your instructor will guide you to Hands-On Exercise 1.1 in the Exercise Manual

Introduction to TCP/IP Network

TCP/IP Time-Line Evolution

Internet Examples

Introduction to TCP/IP Networks

Structure of Internet Activities Board (IAB)

RFCs and IENs

TCP/IP Implementation Concerns

Vendors’ TCP/IP implementations should comply with the Official Protocol Standart Practical experience suggests that vendors are not 100 percent compliant May have interoperability problems between vendors’ TCP/IP

implementations

--Differences in interpretation of standards

--Willful ignoring of standard recommendations This course and other courses in the TCP/IP curriculum will emphasize vendor-

specific issues by using the following icon:

Chapter Summary

You have learned What TCP/IP is The scope of TCP/IP networks The classroom network setup About the Internet

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