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Advanced Transmission Services: ISDN, X.25, Frame Relay, ATM, and SONET/SDH Overview

This chapter explores the various advanced transmission services integral to digital communication networks. It covers Integrated Services Digital Network (ISDN), including BRI and PRI interfaces, and addresses voice and data communication over analog telephone networks. The chapter delves into X.25 and Frame Relay, explaining their architectural principles, packet formats, and addressing mechanisms. Additionally, it touches on Asynchronous Transfer Mode (ATM) and Synchronous Optical Networking/Synchronous Digital Hierarchy (SONET/SDH), providing insights into their roles in modern communication infrastructure.

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Advanced Transmission Services: ISDN, X.25, Frame Relay, ATM, and SONET/SDH Overview

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  1. Chapter 10 Transmission Service By Dr.Sukchatri P.

  2. Contents • Integrated Services Digital Network (ISDN) • X.25 • Frame Relay • ATM • SONET/SDH

  3. ISDN Services

  4. Voice Communication over an Analog Telephone Network

  5. Voice and Data Communication over an Analog Telephone Network

  6. Analog and Digital Services over the Telephone Network

  7. IDN

  8. ISDN

  9. BRI

  10. PRI

  11. Functional Grouping

  12. Reference Points

  13. ISDN Layers

  14. Simplified Layers of ISDN

  15. BRI Interfaces

  16. S Interface

  17. 2B/1Q Encoding

  18. BRI Frame

  19. BRI Topology

  20. PRI Interfaces

  21. PRI Frame

  22. LAPD Address Field

  23. Network Layer Packet Format

  24. Call Reference Field

  25. Information Elements

  26. Information Element Types

  27. Addressing in ISDN

  28. Bit Rates for Different Applications

  29. B-ISDN Services

  30. B-ISDN Accesses

  31. X.25

  32. X.25

  33. X.25 Layers in Relation to the OSI Layers

  34. Format of a Frame

  35. Addressing at the Frame Layer

  36. Three Phases of the Frame Layer

  37. Frame Layer and Packet Layer Domains

  38. Virtual Circuits in X.25

  39. LCNs in X.25

  40. LCN Assignments

  41. PLP Packet Format

  42. Categories of PLP Packets

  43. Data Packets in the PLP Layer

  44. RR, RNR, and REJ Packets

  45. Other Control Packets

  46. Control Packet Formats

  47. X.25 Address Format

  48. Triple-X Protocols

  49. Frame Relay

  50. Frame Relay versus Pure Mesh T-Line Network

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