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Network Hardware

Network Hardware. Local Area Networks Metropolitan Area Networks Wide Area Networks Wireless Networks Home Networks Internetworks. Broadcast Networks. Types of transmission technology Broadcast links Point-to-point links. Broadcast Networks (2).

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Network Hardware

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  1. Network Hardware • Local Area Networks • Metropolitan Area Networks • Wide Area Networks • Wireless Networks • Home Networks • Internetworks

  2. Broadcast Networks • Types of transmission technology • Broadcast links • Point-to-point links

  3. Broadcast Networks (2) • Classification of interconnected processors by scale.

  4. Local Area Networks • Two broadcast networks • (a) Bus • (b) Ring

  5. Metropolitan Area Networks • A metropolitan area network based on cable TV.

  6. Wide Area Networks • Relation between hosts on LANs and the subnet.

  7. Wide Area Networks (2) • A stream of packets from sender to receiver.

  8. Wireless Networks • Categories of wireless networks: • System interconnection • Wireless LANs • Wireless WANs

  9. Wireless Networks (2) • (a) Bluetooth configuration • (b) Wireless LAN

  10. Wireless Networks (3) • (a) Individual mobile computers • (b) A flying LAN

  11. Home Network Categories • Computers (desktop PC, PDA, shared peripherals • Entertainment (TV, DVD, VCR, camera, stereo, MP3) • Telecomm (telephone, cell phone, intercom, fax) • Appliances (microwave, fridge, clock, furnace, airco) • Telemetry (utility meter, burglar alarm, babycam).

  12. Figure 2-4 The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  13. Figure 2-5 Mesh Topology The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  14. Figure 2-6 Star Topology The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  15. Figure 2-7 Tree Topology The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  16. Figure 2-8 Bus Topology The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  17. Figure 2-9 Ring Topology The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  18. Figure 2-10 Hybrid Topology The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  19. Modes of Communication Simplex Half-Duplex Full-Duplex

  20. Topics Discussed in the Section • Repeaters • Bridges • Routers TCP/IP Protocol Suite

  21. Figure 3.40Connecting devices TCP/IP Protocol Suite

  22. Figure 3.41Repeater or hub TCP/IP Protocol Suite

  23. Note A repeater forwards every bit; it has no filtering capability. TCP/IP Protocol Suite

  24. Note A bridge has a table used in filtering decisions. TCP/IP Protocol Suite

  25. Note A bridge does not change the physical (MAC) addresses in a frame. TCP/IP Protocol Suite

  26. Figure 3.42Bridge TCP/IP Protocol Suite

  27. M M M M Figure 3.43Learning bridge TCP/IP Protocol Suite

  28. Note A router is a three-layer (physical, data link, and network) device. TCP/IP Protocol Suite

  29. Note A repeater or a bridge connects segments of a LAN. A router connects independent LANs or WANs to create an internetwork (internet). TCP/IP Protocol Suite

  30. Figure 3.44Routing example TCP/IP Protocol Suite

  31. Note A router changes the physical addresses in a packet. TCP/IP Protocol Suite

  32. Hub • Broadcast • More collision • Connect same networking device

  33. Switch • Switch is intelligent device • Learning the address • Forwarding • Work on mac address

  34. Router • Connect different networks • Routing

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