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Components of a Basic Network

Components of a Basic Network. A media connection. 2 network adapters. 2 computers. OSI Model. NIC with RJ-45, AUI, and BNC Connectors. USB Adapter, PC Card, and Parallel Port Network Adapter. Network Cables and Connectors. Network cables and connectors vary by:

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Components of a Basic Network

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  1. Components of a Basic Network A media connection 2 network adapters 2 computers

  2. OSI Model

  3. NIC with RJ-45, AUI, and BNC Connectors

  4. USB Adapter, PC Card, and Parallel Port Network Adapter

  5. Network Cables and Connectors Network cables and connectors vary by: • The gauge of the wires used in the cable. • The number of wires used in the cable. • The relationship of the wires to each other and the rest of the cable construction. • Whether shielding is used in the cable to prevent or limit interference. • The connectors used on the cable. • The maximum length a cable segment can be. • The cost of the cable.

  6. UTP Cable

  7. TIA Standard 568A EIA/TIA 568A (preferred) 1 W/Green 2 Green 3 W/Orange 4 Blue 5 W/Blue 6 Orange 7 W/Brown 8 Brown P3 P1 P2 P4 RJ-45

  8. TIA Standard 568B EIA/TIA 568B (same as AT&T 258A) 1 W/Orange 2 Orange 3 W/Green 4 Blue 5 W/Blue 6 Green 7 W/Brown 8 Brown P3 P1 P2 P4 RJ-45

  9. USOC Standard for Voice Cabling USOC (doesn’t work for data) 1 W/Brown 2 Green 3 W/Orange 4 Blue 5 W/Blue 6 Orange 7 W/Green 8 Brown P1 P2 P3 P4 RJ-45

  10. An RJ-45 Connector

  11. Coaxial Cable

  12. BNC Connectors Barrel BNC T

  13. Twisted Pair, AUI, and BNC Network Connections Twisted pair AUI BNC

  14. A Single Fiber Optic Strand Secondary buffer to 900 micron Glass cladding Glass core Primary buffer

  15. Fiber Optic Cable Connectors

  16. Examples of Locations for Plenum Cables • Plenum cable is run: • Between structural ceiling and suspended ceiling. • Under a raised floor.

  17. Star Topology Hub

  18. T T Bus (backbone) Bus Topology T = Terminating device

  19. Ring Topology

  20. Mesh Topology

  21. T T Hybrid Topology Star Bus Ring

  22. A Peer-to-Peer Network • Sharing printers • Sharing storage • Network security features Printing Peer Peer

  23. A Client-Server Network Printing Server tower Servers provide clients with access to: • Shared printers • Network storage • Network security features • Other network resources Storage Communications Client Client

  24. A Hybrid Network Shared departmental printer Shared disk Shared CD-ROM Shared network printer Windows 2000 Server Windows 98 Windows 98 Windows 2000 Professional

  25. A Hierarchical Network Communication channel Terminals (Secondary devices) Host (Primary device)

  26. Network Scope Local Area Network (LAN) Wide Area Network (WAN)

  27. Server and Network Operating Systems • Microsoft’s Windows Server 2003 • Novell’s NetWare • LINUX UNIX • LAN server • LANtastic • Apple Computer’s Macintosh OSX

  28. Workstation and Client Operating Systems • Windows • Apple Macintosh Operating System • LINUX UNIX

  29. Network Protocols • TCP/IP • IPX/SPX • NetBEUI • AppleTalk

  30. An IP Address 200 192.168.200 192.168.200.200 Network address Computer address

  31. A Subnet Mask IP Address = 192.168.200.200 Subnet Mask = 255.255.255.0 192.168.200 255.255.255 The network address is 192.168.200

  32. Public and Private IP Addressing

  33. Subnetting Subnetting enables you to subdivide your IP network address by borrowing part of your network’s host address to identify subnet addresses.

  34. Auto-IP Configuration

  35. Name Servers • Domain Name System (DNS) • Windows Internet Naming System (WINS)

  36. Network Architecture Standards

  37. Network Architecture Standards (Cont.)

  38. T T An Ethernet Collision (Hmmm...the channel seems to be free, so...) I’m ready to broadcast (Whoops!) (I’ll wait...) (Hmmm...the channel seems to be free, so...) I’m ready to broadcast My message: Hi, node 1! (Hmmm...the channel seems to be free, so...) I’m ready to broadcast (Whoops!) (I’ll wait...) (Hmmm...the channel is busy, so I’ll wait) Collision!

  39. A Token Ring Network I have the token... I have the token. My message: “Hi node 3.” Here’s the token, node 2. I have the token. I don’t have anything to say. Here’s the token, node 5. 5 1 4 I have the token. I don’t have anything to say. Here’s the token, node 3. 2 3 I have the token. My message: “Hi node 1.” Here’s the token, node 4.

  40. ARCNet Attached Resource Computer Network (ARCNet) is a network developed by the DataPoint Corporation in 1968 and is one of the oldest, simplest, and least expensive LAN technologies.

  41. AppleTalk AppleTalk is a Local Area Network protocol developed by Apple Computer, Inc. in 1985 and is built into all Macintosh computers and Apple LaserWriters.

  42. Internet Connections

  43. A Cable-Based Internet Connection RJ-45 cable Router Computer with network card RJ-45 cable Cable modem RJ-45 cable Cable into house Computer with network card RG59 cable into cable modem ISP

  44. Win XP Server Clients Big Co’s Internet Connections Client T3 T1 T3 Internet backbone ISP T1 line to Big Co Headquarters PDN Win XP Server Router Dedicated 56 K digital connection Dial-up Clients Client Big Co employees working from home - not using a LAN-based Internet connection.

  45. DSL Internet Connection Phone company central office 5.5 km 5.5 km Subscriber within 5.5 km radius of phone company can get DSL

  46. Cable Internet Connections • Internet connection through a cable modem. • A splitter is installed to split the TV channel traffic from the data traffic. • A cable modem connects via an RG-59 coaxial cable. • An RJ-45 cable connects from the cable modem to the network card.

  47. ISDN Internet Connection • Uses a single wire or fiber-optic line to carry voice, data, and video signals. • Uses existing phone company switches and wiring. • Basic Rate Interface (BRI) is most commonly used in residential ISDN connections. • Primary Rate Interface (PRI) is most commonly used between a Private Branch Exchange (PBX) at the customer’s site and the phone company central office. • In Europe, the BRI is the same, but the PRI is composed of 30 B channels and one D channel.

  48. Dial-up Internet Connection • Usually the least expensive method available. • Uses an analog modem connected to a serial port on your computer and connects to the analog phone line. • It is limited to 56 Kbps.

  49. A Two-Way Satellite Internet Connection Network operations center satellite antenna Satellite dish antenna Cable PC Satellite modem Data sent to requested Web servers

  50. Networking Devices

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