1. Introduction to TCP/IP Networks

2. Chapter Objectives Understand what TCP/IP Understand scope of TCP/IP networks Explore classroom network setup Understand the Internet

3. Introduction to TCP/IP Networks scope of TCP/IP networksOrigins of TCP/IP networks Multivendor Support TCP/IP Application Services Classroom Network The Internet

4. What is TCP/IP??

5. What is TCP/IP(continued)

7. 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

8. 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

9. 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

10. Proprietary Networks Early commercial computer network - Proprientary solutions -- Examples: IBM’s SNA, DEC’s DECnet - Locked users to vendor platform

11. Proprietary Networks (continued)

12. Commercial Uses of TCP/IP

13. 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

14. 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

15. TCP/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)

16. TCP/IP Applications (continued)

17. Application Services Chart

18. Introduction to TCP/IP Networks

19. Classroom Network Configuration: 10Base-T Ethernet

20. Workstation Configuration: UNIX and DOS

21. Classroom Hosts and Servers

22. 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

23. Hands-On Exercise 1.1: Warm-Up Your instructor will guide you to Hands-On Exercise 1.1 in the Exercise Manual

24. Introduction to TCP/IP Network

25. TCP/IP Time-Line Evolution

26. Internet Examples

27. Introduction to TCP/IP Networks

28. Structure of Internet Activities Board (IAB)

29. RFCs and IENs

30. 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:

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