School of ICT, University of Phayao Mr.Sukchatri PRASOMSUK, Ph.D.

1. Welcome to273361การจัดการเครือข่ายสำหรับระบบสารสนเทศ (Network Management for Information Systems) 235032 Computer NetworkChapter1Introduction to Networking School of ICT, University of Phayao Mr.Sukchatri PRASOMSUK, Ph.D.

2. About me & Introduce yourself ดร.สุขชาตรี ประสมสุข(Sukchatri PRASOMSUK, Ph.D.) • PhD. (Computational Linguistics), INALCO, Paris, FR • M.Eng.(IT), & Grad.Dip. In Applied IS, RMIT, Melbourne, AU • B.Sc.(คณิตศาสตร์), ม.รามคำแหง • เคยทำงานที่ : • DATA SOLVE Co.,Ltd. & Central Trading Co.,Ltd • กรมวิทยาศาสตร์บริการ กระทรวงวิทย์ฯ • ม.หอการค้าและ ม.แม่ฟ้าหลวง • Contact : • skchatri@hotmail.com • 0804509105 • Notes/Slides Download: • http://www.ict.up.ac.th/skchatri/ Network Management for Information systems

3. Course Overview Study time : • Class: Mon. ICT 1419 : 15.00-17.00 • LAB : Mon. ICT 1402 : 17.00-19.00 Grading : • Atten.& Assignments (Lec.& LAB) 10 % • Lab Test 1 30 % • Mid-Term Exam 30% • Final-Term Exam 30% Network Management for Information systems

4. Course Overview Text: • Data Communications and networking, 2nd Edition, Forouzan, McGrawHill, 2002 • Cisco CCNA • Network A+ Network Management for Information systems

5. Scope of Course • Data Communications • LAN (local area networks) • Communications architecture and protocols and wide-area networks (WAN). • Concepts, terminology, principles and design approaches used in data communication systems. • Layered protocol architecture. Network Management for Information systems

6. Scope of Course What are data communication systems? • A set of devices (hosts) connected by a communication medium that are able to share data through transmission over the media • System Characteristics include (but are not limited to) • Physical properties of the communication signals Network Management for Information systems

7. Data Communication Systems • Physical topology of the communication medium and logical topology of the data transmission • Format and timing of the signals • Error and Flow control, connection management, recovery, security • be able to quickly find protocol descriptions and problem solutions/discussions • be able to discuss data communication systems with supervisors and coworkers on the job Network Management for Information systems

8. Introduction • Why do we use data communication systems? • To facilitate the sharing of resources • Printers • Disk/Tape drives • Computational Power • Data Sets • To permit the distribution of workload • Concurrent/parallel computing • Client-server computing • Fault tolerance Network Management for Information systems

9. Networks and standardization • Network goals • information sharing • resource sharing • global environment • Interconnectivity • cost of network equipment, training • Microsoft, Novell, Unix Network Management for Information systems

10. Network Evolution • Network evolution • Local Area network (LAN), Metropolitan Area Network (MAN), Wide Area Network (WAN) • Local Area network (LAN) • single building • internal data rates are higher • data rates of 10Mbps - 1 Gbps (1Mbps= 106bps) Network Management for Information systems

11. Network Evolution • Copper Distributed Data Interface (CDDI) • Fiber Distributed Data Interface (FDDI) • Low speed LANs--Ethernet, token ring, token bus and some Non-OSI LANs • High speed LANs--Switched Ethernet, FDDI, 100 Mbps voice grade, Gigabit Ethernet Network Management for Information systems

12. Network Evolution • Metropolitan Area Network (MAN) • metropolitan area, optical; fiber, financial transaction • Wide Area Network (WAN) • Wide area networks • long distance > 800 miles, Govt. agencies own it • Data rates of 1Mbps-100Gbps • Circuit switching • Packet switching Network Management for Information systems

13. Network Evolution • Integrated Services Digital Networks(ISDN)-->Public telecommunication networks, digital switches and paths, broad range of traffic • Narrowband ISDN --> 64-kbps channel, circuit switching operations • Broadband ISDNs--> 100s of Mbps, packet-switching operation • Frame relay-->high data rates (2 Mbps) and low error rate • Asynchronous Transfer Mode(ATM)-->Cell relay, fixed length, 10s and 100s of Mbps Network Management for Information systems

14. Network Evolution • Public analog telephone networks • Private line network • offers a fixed bandwidth • slow speed modem • digital line--56 Kbps-1.544 Mbps • Circuit-switched network • slower data rate • Packet-switched network • X.25--widely used standard protocol • slower and limited to 56 Kbps Network Management for Information systems

15. Network Evolution • Public switched data networks • low-speed asynchronous terminal interfaces, X.25 synchronous terminal interface • Value-added networks • communication processors-- nodes, minicomputer--engine Network Management for Information systems

16. Components of computer networks • Hardware--telephone lines, • coaxial cables (1860, 10,800, 13200 voice channels, • MOdulation/DEModulation, Coder/decoder, • acoustic coupler, • line interface, terminals, input/output devices, • internetworking devices • Software--user application, • network operating system, • network control module, • line control module, I/O driver, other library functions Network Management for Information systems

17. Components of computer networks • Network structure • Interface message processor (IMP) • Point-to-point communication • Multicast communication • Broadcast communication Network Management for Information systems

18. Components of computer networks • How do data communication systems work? • Systems communicate over a shared communication medium according to an agreed upon convention (standard). • Several sets of standards currently exist: • TCP/IP • OSI model • Commercial: SNA, IPX, X.25, ... • Proprietary Network Management for Information systems

19. LAN evolution • Ethernet-based LANs: 10 Base-2, 10 Base-5, 10 Base1-T, 10 Base-FL, 100 Base-T, 100 Base-FX • Gigabit Ethernet-- high speed packet switching • 100/1000 switches • ATM-- LAN-to WAN migration • LANs--higher data rates for integrated traffic • Virtual LAN-- LAN switching, uses a look up table for routing the frames Network Management for Information systems

20. Basic Networking Knowledge • Bus Topology • Star Topology • Ring Topology • Mesh Topology (for WAN) Network Management for Information systems

21. Basic Networking Knowledge • BusTopology : IEEE 802.3 , use a processcalledCarrierSenseMultipleAccess/CollisionDetection (CSMA/CD) preventstheoccurrenceofanothercollision. Network Management for Information systems

22. Basic Networking Knowledge • Star topology : can have a maximum of 1,024 nodes on a LAN and is commonly used for 10BASE-T (IEEE 802.3) and 100BASE-TX (IEEE 802.12) Ethernet Network Management for Information systems

23. Basic Networking Knowledge • Ring topology : IEEE 802.5, There is no beginning or end of the cable. This particular topology forms a complete ring. The devices on this network use a transceiver to communicate with their neighbors. Transceivers also act like repeaters to regenerate each signal as it is passed through the device. Network Management for Information systems

24. Basic Networking Knowledge • Mesh topology : used for WANs, a mesh topology connects every device on the network together and provides a path to and from each device Network Management for Information systems

25. Segments and backbones • Segments : - a trunk (main line) of cabling (concentration device (hubs or switches) - a logical grouping of devices (subnet) by bridges, switches, or routers. - collision and/or broadcast domain Network Management for Information systems

26. Segments and backbones • Backbones : -main cable (or trunk) -are the foundations of both LANs and WANs where servers, routers, and concentrating devices (such as switches and hubs) are connected by a high bandwidth connection. Network Management for Information systems

27. Network Operating Systems (NOS) • Microsoft Windows NT, 2000 : New Technology File System (NTFS) or File Allocation Table (FAT). • Novell Netware :uses the NetWare Directory Services (NDS). NetWare's primary file system is a combination of FAT (File Allocation Table) and DET (Directory Entry Table). Layer 3 protocols, which are used in this OS are the Internetwork Package Exchange (IPX) protocol and the Internet Protocol (IP). • Unix : key features include multitasking, multi-users, and networking capabilities. Multiple versions of UNIX exist, including Sun Microsystems' Solaris, IBM's AIX, Silicon Graphics' IRIX, Linux, or Hewlett-Packard's HP-UX Network Management for Information systems

28. Protocol • IP (Internet protocol) • IPX (Internetwork Packet Exchange) • NetBEUI (NetBIOS Extended User Interface) Network Management for Information systems

29. RAID Overview (Redundant Array of Inexpensive Disks) • Mirroring : RAID 1 : 2 Disk 1 controller • Duplexing : RAID 1 : 2 Disk 2 controller • Stripping : RAID 2,5 : 3 Disks 1 controller with (no)parity. • Volumes : logical structure on the same physical disk • Tape Backup : to store data, Quarter Inch Tape (QIC), Digital Audio Tape (DAT), and Digital Linear Tapes (DLT). Network Management for Information systems

30. The OSI model Network Management for Information systems

31. Cabling Network Management for Information systems

32. Cabling Network Management for Information systems

33. Cabling Network Management for Information systems

34. Cabling Network Management for Information systems

35. Ethernet Network Management for Information systems

36. LAN Symbol Network Management for Information systems

37. WAN & Devices Network Management for Information systems

38. IP Addressing Format Network Management for Information systems

39. IP Address Component Fields Network Management for Information systems

40. IP Address Classes Network Management for Information systems

41. IP Address Bit Patterns Network Management for Information systems

42. IP Address Classes 0--------126 128------------------------191 192----------------------------------------254 Network Management for Information systems

43. Questions : • IP Address • 10.5.15.100 • 198.168.10,15 • 191.45.30.10 • 127.0.0.0 Network Management for Information systems