RAE 472

 

Digital Switching Systems

in Telecommunications

 

 

 

 

RTU

Riga Technical University

Fall 2023

About the Course 472

  • Course Topics
  • Grading Scheme
  • Timeline of Implementation
  • During the study course, students will recap many previous topics related to electronics, transmission systems, coding-decoding and queueing theory
  • The study course is partly based on the official CCNP SWITCH 642-813 manual and ITU documents
  • During the study course, students will be introduced to the following:
    • Operation of OSI second layer (Layer 2)
    • Multilayer (MLS) switch
    • Basic VLAN concepts
    • Inter VLAN communication through Layer 3 routing
    • Switch port aggregation with EtherChannel,
    • Spanning tree protocol  (SPT)
    • Multilayer switching with CEF
    • Ethernet applications in CAMPUS networks
    • Enterprise network
    • Ethernet carrier environment
    • Switching in optical networks
    • Network Security
    • and the Foundations of Engineering if any gaps will be found

About the Course RAE472

slightly UPDATED and may vary in the sequence

Course topics

Grading

Week #2

DISCUSSION

Course Implementation Plan

Week #3 and #4

Observing Systems

September

READINGs 

Course Implementation Plan

Week #5 ... #8

Exploring

Systems

October

EXPERIMENTs

Course Implementation Plan

Week #9 ... #13

Analysing

Systems

November

ANALYSIS

Course Implementation Plan

Week #13 ... #16

Dreaming about FUTURE

Systems

December

RESEARCH

Text

End

Course Implementation Plan

Week #17 ... #20

Leaving the SHIP

if needed - updating/writing 

 PAPER/EXAM

Course Implementation Plan

Agenda for Day One & Two

Week #2

Introduction to the Course

 DISCUSSION

HOMEWORK

September 11, 2023

Observing Telecom systems

 READING

 EXPERIMENTING

 CREATING

 SHARING

 DISCUSSION

  SURVAY

 POLLs/TESTs

September 13, 2022

SWITCHING in MODELS

  • GENERAL MODEL
  • in LEARNING MODEL
  • in PROBLEM-SOLVING MODEL
  • in OSI MODEL
  • CLASS-WORK
  • HOMEWORK: SWITCHING MODEL
    • ​POLICY
    • FORM
    • CONTENT

Meetup #1

Meetup #2

Course Learning

Methods

and Objectives

15

30

45

60

75

90

Ability to memorize

in-class time

S_{15} \approx 5 \cdot S_{90}

Well-wasted time

Begin

Methodology

Methodology

Methodology

CONTENT

FORM

POLICY

Models-based

Methodology

CONTENT

FORM

POLICY

Methodology

F.A.S.T.

https://medium.com/big-self-society/jim-kwiks-fast-method-will-help-you-learn-faster-5d3d669dc3b5

method

Learning through Models

Where is the Key of Problem Solving?

The Problem MODEL

a context

a context

a method

Communications-based

Problem MODEL

Communications-based

Problem MODEL

Switching-based

Problem MODEL

Client

Server

\lambda(t)_1
\lambda(t)_2
\mu_1
\mu_2

Fundamental Models

Client

Server

127.0.0.1

10.13.8.288

10.13.8.28/8

4.4.4.4/32

00:50:56:h4:29:b7

fe80::44ed:7ac6:91ab:6315

2001:db8:85a3:8d3:1319:8a2e:370:7348

fe80::283b:f3ff:fe70:23b5/64

https://us02web.zoom.us/j/85487323001?pwd=RDB4NXY

10.10.10.20

 

 

Real fragments

C = \pi D
S = \pi R^2
D

Rational vs Irrational

[m] = \pi [m]
[m^2] = \pi [m^2]

reasonable vs unreasonable

C = \pi D
S = \pi R^2
D

Rational vs Irrational

CONTENT

FORM

POLICY

Your Comments, please ...

HOMEWORK

Introduce the others to

OSI Model from Switching perspective

  • use SLIDES.com

  • use YOUTUBE.com

  • publish on the SLACK channel

The Problem

End here

"How do I Understand OSI Model"

The Problem

  • use SLIDES.com

  • use YOUTUBE.com

  • publish on the SLACK channel

"How do I Understand OSI Model"

The Problem

  • use SLIDES.com

  • use YOUTUBE.com

  • publish on the SLACK channel

The Problem

HOMEWORK

Introduce the others to

OSI Model

  • use SLIDES.com

  • use YOUTUBE.com

  • publish on the SLACK channel

The Problem

Considering OSI model

Here is the problem...

"How do I Understand OSI Model? "

The Problem

(at the moment)

Considering OSI model

Here is the problem...

"How do I Understand OSI Model? "

The Problem

(at the moment)

REAL NETWORK MODEL

Considering  Models

Here is the problem...

The Problem

127.0.0.1

10.13.8.288

10.13.8.28/8

4.4.4.4/32

00:50:56:h4:29:b7

fe80::44ed:7ac6:91ab:6315

2001:db8:85a3:8d3:1319:8a2e:370:7348

fe80::283b:f3ff:fe70:23b5/64

https://us02web.zoom.us/j/85487323001?pwd=RDB4NXY

10.10.10.20

 

 

Here is the problem...

The Problem

Considering Systems

 Dynamic Model

 Static Model

SWITCHING

What is the queue size?

REAL NETWORK MODEL

Considering Traffic as a

Service System Load

What is the router load?

How long will stay the yellow packet in the queue?

How long will be processed the green packet?

\overline{W}
\overline{T} \equiv
\overline{N}
\overline{L} \equiv

Considering Systems

 Dynamic Model

 Static Model