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Department of Computer Science and Engineering
Hamdard University Bangladesh
SONET
Contents
 Introduction to SONET
 SONET/SDH Rates
 SONET Layers Compared with OSI Model
 SONET Architecture
 SONET Fra...
Introduction to SONET
 SONET stands for Synchronous Optical Network.
 Standard for optical telecommunications transport....
SONET/SDH Rates
4/17
SONET Layers Compared with OSI
5/17
SONET Archıtecture
Path
Termination
Path
Termination
Line
Termination
Line
Termination
Section
Termination
path
line line ...
SONET Frames
 Each synchronous transfer signal STS-n is composed of 8000 frames.
 Each frame is a two-dimensional matrix...
 A SONET STS-n signal is transmitted at 8000 frames per second.
 Each byte in a SONET frame can carry a digitized voice ...
SONET Networks
9/17
Point-to-Point Network
10/17
Multipoint Network
11/17
Ring Network:
Unidirectional Path Switching Ring
12/17
Ring Network:
Bi-directional Line Switching Ring (BLSR)
13/17
Mesh Network
14/17
Reduced network
complexity
Protection
Bandwidth
High data
rate.
Flexible
Topologies
Efficient
management of
bandwidth
Adva...
 High cost.
 Complex equipment as compared to cheaper Ethernet
 Strict synchronization schemes required.
Disadvantages
...
Thats All !
Thanks for listening...
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SONET-Communication Engineering

Contents:
Introduction to SONET
SONET/SDH Rates
SONET Layers Compared with OSI Model
SONET Architecture
SONET Frames
SONET Network Types
Advantages of SONET
Disadvantages of SONET

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SONET-Communication Engineering

  1. 1. Department of Computer Science and Engineering Hamdard University Bangladesh SONET
  2. 2. Contents  Introduction to SONET  SONET/SDH Rates  SONET Layers Compared with OSI Model  SONET Architecture  SONET Frames  SONET Network Types  Advantages of SONET  Disadvantages of SONET 2/17
  3. 3. Introduction to SONET  SONET stands for Synchronous Optical Network.  Standard for optical telecommunications transport.  It defines optical carrier (OC) levels.  Synchronous transport signals (STSs) for the fiber- optic–based transmission hierarchy. 3/17
  4. 4. SONET/SDH Rates 4/17
  5. 5. SONET Layers Compared with OSI 5/17
  6. 6. SONET Archıtecture Path Termination Path Termination Line Termination Line Termination Section Termination path line line line ADM ADMregenerator section section sectionsection  Signals: Electrical signaling levels called STSs (Synchronous Transport Signals, (STMs)). Optical signals are called OCs (Optical Carriers)  Devices: STS Multiplexer/ Demultiplexer, Regenerator, Add/Drop Multiplexer and Terminals  Connections: SONET devices are connected using sections, lines, and paths 6/17
  7. 7. SONET Frames  Each synchronous transfer signal STS-n is composed of 8000 frames.  Each frame is a two-dimensional matrix of bytes with 9 rows by 90 × n columns. 7/17
  8. 8.  A SONET STS-n signal is transmitted at 8000 frames per second.  Each byte in a SONET frame can carry a digitized voice channel.  In SONET, the data rate of an STS-n signal is n times the data rate of an STS-1 signal.  In SONET, the duration of any frame is 125 μs. STS Frames in Transition 8/17
  9. 9. SONET Networks 9/17
  10. 10. Point-to-Point Network 10/17
  11. 11. Multipoint Network 11/17
  12. 12. Ring Network: Unidirectional Path Switching Ring 12/17
  13. 13. Ring Network: Bi-directional Line Switching Ring (BLSR) 13/17
  14. 14. Mesh Network 14/17
  15. 15. Reduced network complexity Protection Bandwidth High data rate. Flexible Topologies Efficient management of bandwidth Advantages 15/17
  16. 16.  High cost.  Complex equipment as compared to cheaper Ethernet  Strict synchronization schemes required. Disadvantages 16/17
  17. 17. Thats All ! Thanks for listening...

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