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Chapter 7

Chapter 7. Data Link Control & Data Link Protocol. By Dr. Sukchatri P. Contents. Data Link Control Line Discipline Flow Control Error Control Data Link Protocols Asynchronous Protocols Synchronous Protocols Character Protocol Bit-Oriented Protocol. Data Link Control.

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Chapter 7

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  1. Chapter 7 Data Link Control & Data Link Protocol By Dr.Sukchatri P.

  2. Contents • Data Link Control • Line Discipline • Flow Control • Error Control • Data Link Protocols • Asynchronous Protocols • Synchronous Protocols • Character Protocol • Bit-Oriented Protocol

  3. Data Link Control

  4. Data Link Control Functions

  5. Line discipline categories

  6. Line discipline concept : ENQ/ACK

  7. ENQ/ACK line discipline

  8. Poll/Select discipline Multipoint discipline

  9. Select

  10. Poll

  11. Categories of flow control

  12. Stop-and-wait

  13. Sliding window

  14. Sender sliding window

  15. Receiver sliding window

  16. Example of sliding window

  17. Categories of error control

  18. Stop-and-wait ARQ

  19. Stop-and-wait ARQ

  20. Go-back-n

  21. Go-back-n

  22. Go-back-n

  23. Data Link Protocols

  24. Asynchronous Protocols

  25. XMODEM Frames

  26. Synchronous Protocols

  27. BSC Frames

  28. A Simple BSC data frame

  29. A BSC frame with a header

  30. Multiblock frame

  31. Multiframe transmission

  32. BSC Control frame

  33. Control Frame

  34. Control Frame

  35. Control Frame

  36. Byte stuffing

  37. Bit-Oriented Protocols

  38. HDLS Configurations

  39. HDLS Configurations

  40. HDLS Configurations

  41. HDLC Modes

  42. HDLC Frame types

  43. HDLC Frame types

  44. HDLC Frame types

  45. HDLC Flag Field

  46. Bit Stuffing in HDLC

  47. HDLC Address field

  48. HDLC Control Fields I-Frame : Information field , contains the user’s data S-Frame : Supervisory frames, acknowledgment, flow control, & error control U-Frame : Unnumbered frames , exchange session management and control information between connected devices.

  49. Poll/Final in HDLC

  50. HDLC Information Field

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