COMP5416Advanced Network Technologies

Bjorn Landfeldt

The University of SydneySchool of Information Technologies

http://teaching.landfeldt.com

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Unit of Study Scope

• Delivering Quality of Service in Advanced Networks• Mechanisms to Achieve QoS• Evaluating QoS by

– Simulation– Queueing Models

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Assumed Knowledge

• Knowledge of networking to level of COMP5116 Internet Protocols

• Ability to program in a general-purpose programming language, mainly C/C++

• Basic knowledge of probability and random variables

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Textbook

Textbook: William Stallings, High-Speed Networks and Internets: Performance and Quality of Service, 2/E, Prentice-Hall, 2002 ISBN: 0-13-032221-0

Textbook Website: http://williamstallings.com/HsNet2e.html

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WirelessAccess Network

Fixed Access Network

LAN

Future Telecommunications Networks

IP Core Network

WiFi

Wimax

3G/4G

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Subject Structure

Part 1 (Performance Modelling) Introduction. Chapter 1 Asynchronous Transfer Mode (ATM) Chapter 5 High-Speed LANs Chapter 6 Simulation Notes Probability and Stochastic Processes Chapter 7 Queuing Analysis Chapter 8 Self-Similar Traffic Chapter 9

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Subject Structure (cont’d)

Part 2 (Traffic Control and QoS) Congestion Control Chapter 10 TCP Traffic Control Chapter 12 Traffic & Congestion Control in ATM Chapter 13 Integrated and Differentiated Services Chapter 17 Protocols for QOS Support Chapter 18

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WeekWeek ContentsContents TextbookTextbook

Week 1 Introduction.The Need for Speed and Quality of ServiceAdvanced TCP/IP and ATM NetworksAsynchronous Transfer Mode (ATM)ATM Protocol Architecture. ATM Logical Connections ATM Service Categories

Chapter 1  Chapter 5

Week 2 High-Speed LANs.The Emergence of High-Speed LANs. Ethernet.. Wireless LANs.SimulationSimulation Overview

Chapter 6

Week 3 Overview of Probability and Stochastic Processes.Probability. Random Variables. Stochastic Processes.Simulation. Analysing output.

Chapter 7 & Notes

Week 4 Queuing Analysis Single server queuesSimulationGenerating random variables

Chapter 8 & Notes

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Week 5 Queuing AnalysisM/G/1 Queue. Multiserver Queues

Chapter 8

Week 6 Self-Similar Traffic.Self-Similarity. Self-Similar Data Traffic. Performance Implications of Self-Similarity

Chapter 9

Week 7 Congestion Control in Data Networks and Internets.Effects of Congestion.Congestion and Control Traffic Management.

Chapter 10

Week 8 TCP Traffic Control.TCP Flow ControlTCP Congestion Control..

Chapter 12

Week 9 TCP Traffic Control.Performance of TCP.

Chapter 12

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Week11 Traffic and Congestion Control in ATM Networks.Requirements for ATM Traffic and Congestion Control.ATM Traffic-Related Attributes.Traffic Management Framework. Traffic ControlABR Traffic Management. GFR Traffic Management

Chapter 13

Week12 Integrated and Differentiated Services.Integrated Services Architecture (ISA). Queuing Discipline.Active Queueing Management. Differentiated Services

Chapter 17

Week13 Protocols for QOS Support.Resource Reservation: RSVP. Multi-Protocol Label Switching

Chapter 18

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AssessmentsComponent % of Final

GradeDue Date

Simulation Assignment 1 10

Take-home Quiz 10

Simulation Assignment 2 20

Written examination (two hours)

60  

Monday 20 August

Monday 10 September

Monday 15 October

To be advised

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Mechanics• Laboratories

– Start week 3– Will address the simulation part of this subject– Last 3 labs would be tutorials instead

• Lectures– No class Monday 24 September (Mid-semester break)– No class Monday 1 October (Labour Day Public Holiday)