Chapter 3 Underlying  Technologies
CONTENTS <ul><li>LANS </li></ul><ul><li>POINT-TO-POINT WANS </li></ul><ul><li>SWITCHED WANS </li></ul><ul><li>CONNECTING D...
Figure  3-1 Internet model
LOCAL AREA  NETWORKS (LANS) 3.1
Figure  3-2 CSMA/CD
Minimum frame length/Transmission rate is proportional to  Collision domain / Propagation speed
Figure  3-3 Ethernet layers
Figure  3-4 Ethernet frame
Figure  3-5:a Ethernet implementation
Figure  3-5:b Ethernet implementation
Figure  3-5:c Ethernet implementation
Figure  3-5:d Ethernet implementation
Figure  3-6:a Fast Ethernet implementation
Figure  3-6:b Fast Ethernet implementation
Figure  3-6:c Fast Ethernet implementation
Figure  3-7:a Gigabit Ethernet implementation
Figure  3-7:b Gigabit Ethernet implementation
Figure  3-8:a Token passing
Figure  3-8:b Token passing
Figure  3-8:c Token passing
Figure  3-8:d Token passing
Figure  3-9 Data frame
Figure  3-10 MAU
Figure  3-11:a Spread spectrum techniques
Figure  3-11:b Spread spectrum techniques
Figure  3-12 ISM bands
Figure  3-13 BSSs
Figure  3-14 ESS
Figure  3-15 CSMA/CA
POINT-TO-POINT WANS 3.2
Figure  3-16 Band for ADSL
Figure  3-17 PPP frame
SWITCHED WANS 3.3
Figure  3-18 Frame Relay network
A cell network uses the cell as the basic unit of data exchange. A cell is defined as a small, fixed-sized block of inform...
Figure  3-19 ATM multiplexing
Figure  3-20 Architecture of an ATM network
Figure  3-21 Virtual circuits
Note that a virtual connection is defined by a pair of numbers: the VPI and the VCI.
Figure  3-22 An ATM cell
Figure  3-23 ATM layers
The IP protocol uses the AAL5 sublayer.
We will discuss IP over ATM in  Chapter 26.
Figure  3-24:a ATM LAN architecture
Figure  3-24:b ATM LAN architecture
Figure  3-24:c ATM LAN architecture
Figure  3-25 A mixed architecture ATM LAN  using LANE
CONNECTING  DEVICES 3.4
Figure  3-26 Connecting devices
Figure  3-27 Repeater
A repeater connects segments of a  LAN together .
A repeater forwards every packet; it has no filtering capability.
Figure  3-28 Hubs
A bridge has a table used in filtering decisions.
Figure  3-29 Bridge
A bridge connects segments of a LAN together.
A router is a three-layer (physical, data link, and network) device.
A repeater or a bridge connects segments  of a LAN.  A router connects independent LANs or WANs to create an internetwork ...
Figure  3-30 Routing example
A router changes the physical addresses in a packet.
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Ch03

  1. 1. Chapter 3 Underlying Technologies
  2. 2. CONTENTS <ul><li>LANS </li></ul><ul><li>POINT-TO-POINT WANS </li></ul><ul><li>SWITCHED WANS </li></ul><ul><li>CONNECTING DEVICES </li></ul>
  3. 3. Figure 3-1 Internet model
  4. 4. LOCAL AREA NETWORKS (LANS) 3.1
  5. 5. Figure 3-2 CSMA/CD
  6. 6. Minimum frame length/Transmission rate is proportional to Collision domain / Propagation speed
  7. 7. Figure 3-3 Ethernet layers
  8. 8. Figure 3-4 Ethernet frame
  9. 9. Figure 3-5:a Ethernet implementation
  10. 10. Figure 3-5:b Ethernet implementation
  11. 11. Figure 3-5:c Ethernet implementation
  12. 12. Figure 3-5:d Ethernet implementation
  13. 13. Figure 3-6:a Fast Ethernet implementation
  14. 14. Figure 3-6:b Fast Ethernet implementation
  15. 15. Figure 3-6:c Fast Ethernet implementation
  16. 16. Figure 3-7:a Gigabit Ethernet implementation
  17. 17. Figure 3-7:b Gigabit Ethernet implementation
  18. 18. Figure 3-8:a Token passing
  19. 19. Figure 3-8:b Token passing
  20. 20. Figure 3-8:c Token passing
  21. 21. Figure 3-8:d Token passing
  22. 22. Figure 3-9 Data frame
  23. 23. Figure 3-10 MAU
  24. 24. Figure 3-11:a Spread spectrum techniques
  25. 25. Figure 3-11:b Spread spectrum techniques
  26. 26. Figure 3-12 ISM bands
  27. 27. Figure 3-13 BSSs
  28. 28. Figure 3-14 ESS
  29. 29. Figure 3-15 CSMA/CA
  30. 30. POINT-TO-POINT WANS 3.2
  31. 31. Figure 3-16 Band for ADSL
  32. 32. Figure 3-17 PPP frame
  33. 33. SWITCHED WANS 3.3
  34. 34. Figure 3-18 Frame Relay network
  35. 35. A cell network uses the cell as the basic unit of data exchange. A cell is defined as a small, fixed-sized block of information.
  36. 36. Figure 3-19 ATM multiplexing
  37. 37. Figure 3-20 Architecture of an ATM network
  38. 38. Figure 3-21 Virtual circuits
  39. 39. Note that a virtual connection is defined by a pair of numbers: the VPI and the VCI.
  40. 40. Figure 3-22 An ATM cell
  41. 41. Figure 3-23 ATM layers
  42. 42. The IP protocol uses the AAL5 sublayer.
  43. 43. We will discuss IP over ATM in Chapter 26.
  44. 44. Figure 3-24:a ATM LAN architecture
  45. 45. Figure 3-24:b ATM LAN architecture
  46. 46. Figure 3-24:c ATM LAN architecture
  47. 47. Figure 3-25 A mixed architecture ATM LAN using LANE
  48. 48. CONNECTING DEVICES 3.4
  49. 49. Figure 3-26 Connecting devices
  50. 50. Figure 3-27 Repeater
  51. 51. A repeater connects segments of a LAN together .
  52. 52. A repeater forwards every packet; it has no filtering capability.
  53. 53. Figure 3-28 Hubs
  54. 54. A bridge has a table used in filtering decisions.
  55. 55. Figure 3-29 Bridge
  56. 56. A bridge connects segments of a LAN together.
  57. 57. A router is a three-layer (physical, data link, and network) device.
  58. 58. A repeater or a bridge connects segments of a LAN. A router connects independent LANs or WANs to create an internetwork (internet).
  59. 59. Figure 3-30 Routing example
  60. 60. A router changes the physical addresses in a packet.
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