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Switching aND ROUTING Systems

Sisteme de comutatie si rutare (SCR)

 

Year:

                                   

III TST-E

Telecommunications Technologies and Systems

English language  

Course:

Professor Virgil Dobrota, Ph.D.

Laboratory:

Assistant Professor Bogdan Rus, Ph.D.

Assistant Robert Botez, Ph.D. student

Project:

Professor Virgil Dobrota, Ph.D.

 

>>>>>> 

C O U R S E S (Room 368)

Course 1:

26.02.25

8 am -10 am

 

* References

Chapter 1: Digital Switching

1. Type of Digital Switches

2. Single Stage Space-Division Switch

3. Classification of Multiple Stage Switches

Course 2:

06.03.25

10 am -12 pm

4. Multiple Stage Switch with Complete Permutation Paths (Clos)

5. Strictly Non-Blocking Three-Stage Clos Switch

6. Blocking Probabilities. Lee’s Method

7. Clos Network of IP Switches

Course 3:

11.03.25

8 am -10 am

8. Generalization of Clos condition

9. Multiple Stage Switches with Single Path (Banyan)

10. Batcher-Banyan Switches (optional)

Course 4:

18.03.25

8 am -10 am

11. Multiple Stage Switches with Multiple Path

12. Time-Division Switching: T

13. Time-Space-Division Switching: TS

Course 5:

25.03.25

8 am -10 am

14. STS Switch

15. TST Switch

16. TSSST Switch (optional)

17. Practical examples of telephone exchanges and switch fabrics (optional)

18. Switches in cloud (optional)

Course 6:

01.04.25

8 am -10 am

Chapter 2: Traffic Analysis

19. Characteristics of a Queuing System

20. Models for Clients Arrivals: Bernoulli, Poisson

Course 7:

08.04.25

8 am -10 am

21. M/M/1/∞ System

22. M/M/1/N System

TUTORIALS:

Queuing Systems with Poisson arrivals and services

Course 8:

15.04.25

8 am -10 am

23. M/M/m/∞ System. Erlang C Formula

24. M/M/m/m System. Erlang B Formula

 

TUTORIALS:

Queuing Systems with Poisson arrivals and services

22.04.25

Holiday

Course 9:

29.04.25

8 am -10 am

25. M/D/m/∞ and M/D/1/∞ Systems

26. M/G/1/∞ System. Pollaczek-Khinchin Formula

27. Traffic Processing

 

TUTORIALS:

Queuing Systems with Poisson arrivals and services

Queueing Systems with Poisson arrivals, Poisson, Deterministic and General services

Course 10:

06.05.25

8 am -10 am

Chapter 3: Routing Algorithms

28. Basics of Routing: Definitions

Course 11:

13.05.25

8 am -10 am

29. Bellman-Ford Algorithm

30. Dijkstra’s Algorithm

Course 12:

20.05.25

8 am -10 am

31. Floyd-Warshall Algorithm (optional)

32. Comparison between Bellman-Ford, Dijkstra’s and Floyd-Warshall Routing Algorithms

33. Cost function

Course 13:

27.05.25

8 am -10 am

34. Optimal Routing

Course 14:

03.06.25

8 am -10 am

* Review

* Examples of subjects given at 2023-2024 exam

 

 

>>>>>> 

L A B O R A T O R I E S

(Rooms 211/A, 209)

Lab. 1:

26.02.25

8 am – 10 pm

27.02.25

4 pm – 8 pm

1. Linux Installation

 

2331/1 (Room 211/A)

 

2331/2 (Room 209), 2331/3 (Room 209)

Lab. 2:

05.03.25

8 am – 10 pm

06.03.25

4 pm – 8 pm

2. Introduction to Linux: working with files

Lab. 3:

12.03.25

8 am – 10 pm

13.03.25

4 pm – 8 pm

3. Strictly Non-Blocking Three-Stage Clos Switch

4. Software Package for Designing Clos Switches

 

TUTORIAL:

Lab_3 (PowerPoint Presentation)

 

SOFTWARE RESOURCES:

Virtual machine

VMware Player Hypervisor (version 17.6.2)

Lab. 4:

19.03.25

8 am – 10 pm

20.03.25

4 pm – 8 pm

5. Software Package for the Simulation of Rectangular Delta Switches 

6. Software Package for the Simulation of Rectangular Omega Switches

 

TUTORIAL:

Lab_4 (PowerPoint Presentation)

Lab. 5:

26.03.25

8 am – 10 pm

27.03.25

4 pm – 8 pm

7. Multiple Stage Switch with Multiple paths (Benes)

8. Software Package for the Simulation of Benes Switches

 

TUTORIAL:

Lab_5 (PowerPoint Presentation)

Lab. 6:

02.04.25

8 am – 10 pm

03.04.25

4 pm – 8 pm

9. STS Switch

10. Software Package for Designing STS Switches

 

TUTORIAL:

Lab_6 (PowerPoint Presentation)

Lab. 7:

09.04.25

8 am – 10 pm

10.04.25

4 pm – 8 pm

11. TST Switch

12. Software Package for Designing TST Switches

 

TUTORIAL:

Lab_7 (PowerPoint Presentation)

Lab. 8:

16.04.25

8 am – 10 pm

17.04.25

4 pm – 8 pm

Chapter 2: Traffic Analysis

13. Software Package for the Calculation of Binomial, Laplace-Gauss and Poisson Distributions

14. Software Package for the Calculation of Erlang B and Erlang C Formulae

 

TUTORIAL:

Lab_8 (PowerPoint Presentation)

23, 24.04.25

Holiday

Lab. 9:

30.04.25

8 am – 10 pm

01.05.25

4 pm – 8 pm

15. Problems within Chapter 2 (Traffic Analysis)

 

 

Holiday (to be recovered)

 

TUTORIAL:

Lab_9 (PowerPoint Presentation)

01.05.24

Lab. 10:

07.05.25

8 am – 10 pm

08.05.25

4 pm – 8 pm

16. Problems within Chapter 1 (Digital Switching) + Chapter 2 (Traffic Analysis)

 

TUTORIAL:

Lab_10 (PowerPoint Presentation)

Lab. 11:

14.05.25

8 am – 10 pm

15.05.25

4 pm – 8 pm

Chapter 3: Routing Algorithms

17. Bellman-Ford Algorithm

 

TUTORIAL:

Lab_11 (PowerPoint Presentation)

Lab. 12:

21.05.25

8 am – 10 pm

22.05.25

4 pm – 8 pm

18. Dijkstra’s Algorithm

19. Java Applet for Dijkstra’s Algorithm

 

TUTORIAL:

Lab_12 (PowerPoint Presentation)

Lab. 13:

28.05.25

8 am – 10 pm

29.05.25

4 pm – 8 pm

Project defending

SCHEDULE

 

No other project defending will be organized during academic year 2024-2025 !!!

Lab. 14:

04.06.25

8 am – 10 pm

05.06.25

4 pm – 8 pm

Recovery Laboratory

 

 

No other recovery lab will be organized during academic year 2024-2025 !!!

 

 

>>>>>> 

P R O J E C T S (Room 211/A)

P1:

28.02.25

4 pm – 6 pm

07.03.25

4 pm – 8 pm

1. IPv4 Addressing

 

2331/1

 

2331/2, 2331/3

P2:

 

 

 

10.03.25

10 am – 2 pm

 

 

17.03.25

10 am – 12 pm

2. Project subjects 

3. Project assignment

4. Configuration example for PBX-IP Based Asterisk and VoIP terminals

2331/2, 2331/3

 

 

 

2331/1

 

SOFTWARE RESOURCES:

Project Demonstration

P3:

24.03.25

10 am – 2 pm

31.03.25

10 am – 12 pm

5. Working on project: SIP (1XYZ, 2XYZ) and IAX2 (3XYZ, 4XYZ) subscribers

6. Design recommendations

 

P4:

07.04.25

10 am – 2 pm

14.04.25

10 am – 12 pm

7. Working for project: Implementation of SIP functions

(0/0.25/0.5/0.75/1 point)

P5:

 

 

21.04.25

28.04.25

10 am – 2 pm

05.05.25

10 am – 12 pm

8. Working for project: Implementation of IAX2 functions

(0/0.25/0.5/0.75/1 point)

Holiday

P6:

12.05.25

10 am – 2 pm

19.05.25

10 am – 12 pm

9. Working on project: Integration of SIP and IAX functions

 

 

 

P7

26.05.25

8 am – 2 pm

Project recovery + Q & A

No other project recovery will be organized during academic year 2024-2025 !!!

 

Last update: 1 March 2025