01 - introduction sem 2 2010

HET104 – LAN PrinciplesHET706 – Networks and RoutingHET706 – Networks and Routing

Unit Introduction

Network Architecture Models

Unit Outline

• Available on Blackboard Web Site

• Contains details you need to know

• Weekly Schedule

• Assessment

• Requirements

• Online lab logon information

HET104/HET706 Slide Set 1 – Network Architecture Models

[email protected], [email protected]

• Online lab logon information

NetLab and NetAcademy Web Sites

• Accounts open from Next Week

• Both sites host copies of

• Curriculum

• Lab Worksheets (also on Blackboard)

• NetLab

• Hosted at Swinburne



• Details on Unit Outline (for access from home)

• Remote access to Cisco Routers for configuration purposes

• NetAcademy

• Hosted by Cisco

• Interface for sitting Module Tests

Assessment

• Mandatory Assessment Tasks• Complete 60% of CCNA1 Module Tests

• Score > 60% on CCNA1 Final Module Test

• Complete 60% of CCNA2 Module Tests

• Score > 60% on CCNA2 Final Module Test

• Pass Final Skills Exam

• Score > 40% on Final Written Exam



• Other Assessment Items• Case Study

• Two In-Semester VLSM Tests

• Mid-Semester Skills Exam

• Lab Journal

NetAcademy – CCNA1

CCNA1 Individual Module Tests

• Activated as per Weekly Schedule in Unit Outline

• Module test order is based on Lecture Curriculum

• First Module Test done during Lab Session 2

• Remaining tests activated for a one week period from the end of your lab session

• Your responsibility to complete tests in your own time

• If you miss some tests they will not be activated for you

• Feedback provided by NetAcademy web site

• Lab Instructor will provide access to answers for first 30 minutes of subsequent lab session

• You must complete a minimum of 6 out the 10 Individual Module Tests




CCNA1 Final Module Test

• 1st Attempt

• When – refer Weekly Schedule in Unit Outline

• Held in first hour of lab

• Worth 8% of your final mark

• Need to score >= 60% to pass

• 2nd Attempt


• Maximum mark = 60%

NetAcademy – CCNA2

CCNA2 Individual Module Tests

• Activated as per Weekly Schedule in Unit Outline

• Tests activated for a one week period from the end of your lab session

• Your responsibility to complete tests in your own time

• Lab Instructor will provide access to answers for first 30 minutes of subsequent lab session






• 1st Attempt


• Held in first hour of lab


• Need to >= 60% to pass

• 2nd Attempt

• When – Schedule posted on BlackBoard after week 12

• Maximum mark = 60%

VLSM Tests

• Two VLSM Tests


• First half hour of lab session



• Each test worth 2% of your final mark

• Marking scheme available on BlackBoard

• Results returned in following Lab session

Lab Journal

• During Lab Session 1 you will be provided with a journal

• Make notes of tasks you accomplished during the lab sessions

• Special notes you consider important

• Handwritten notes only

• No printed material or photocopies allowed


• Submit for marking to Lab Instructor, in the Lab session the week before the Final Skills Exam



the Final Skills Exam

• Printed material will be removed

• Subject to conditions, you will be allowed to use your journal during the Skills Exams

• You must return the journal to your instructor after the Skills Exam

• Journal can be collected during the exam period

Skills Exam – Mid Semester

• Pass/Fail Exam


• One hour exam, starting in the first hour of lab session




• You must successfully complete all allocated tasks

• Results returned in following lab session

Skills Exam – Final

• Graded Exam

• One hour exam

• Marking scheme on BlackBoard


• 1st Attempt



• 1 Attempt• When – refer Weekly Schedule in Unit Outline

• Results returned via email the day after last group completes Skills Exam

• 2nd Attempt• Held during Exam Period

• Maximum score = 50%

Case Study

• Group Assignment – 3 or 4 students per group• Groups must be formed before end of lab session in week 6

• Details given to Lab Instructor

• Instructor will provide Case Study details

• MUST be formed from students within your Laboratory class



• Done via ESP – group formation and report submission


• Details on BlackBoard

Lecture Format

• The Lectures concentrate on the core material

• CISCO NetAcademy responsibilities

• Need to access Online material to prepare for Weekly

Module Tests



Lab Sessions

• Lab Sessions start this week – week 1

• MUST attend LAB Session you are allocated to

• Weekly Module tests can only be activated for students allocated to that session

• Lab Exercises as per Unit Outline Schedule



• Lab Exercises as per Unit Outline Schedule• Practical Work based on CISCO Labs

• Includes:• Review of some Lecture material• Question/Answer session with Instructor• Configuration of Cisco Routers

Lecture Objectives

• Layered Network Architectures

• The Communication Process

• Protocol and Reference Models



TCP/IP Layered Architecture Model



Benefits of Layering

1. Assists in protocol design

2. Open standard - fosters competition

3. Changes made in one layer do not affect other layers

4. Defines common terms that describe the network functions

5. Provides a common (standard) language

6. Allows technologies and protocols to evolve



The Communication Process



Protocol Data Units (PDU) and Encapsulation



The process of sending and receiving messages



Protocol and Reference Model

A Protocol Model

• provides a model that closely matches the structure of a particular protocol suite – TCP/IP

A Reference Model



A Reference Model

• provides a common reference for maintaining consistency within all types of network protocols and services -OSI

ISO/OSI and TCP/IP Models

OSI – Open Systems Interconnection, ISO – International Organisation for Standardisation



Each Layer of the OSI Model

• Physical• Accepts frames, transmits as binary data, bits, over media between

devices

• Data Link



• Data Link• Accepts packets, creates frames, places packets in frames for host to

host delivery across a single link, on the LANs and WANs

• Address Label – source and destination MAC (Media Access Control) address


• Network

• Accepts segments from layer above, create packets, places segments in packets for end-to-end delivery through intermediary devices in other networks to the destination

• Address Label – source and destination IP address

• The IP address identifies the HOST device

• Transport



• Transport

• At the source, accepts data from layer above, creates segments, places data in segments and numbers them,

• transfers the segments,

• At the destination, reassembles the data from the segments and passes data to layer above

• Address Label – source and destination Port number

• The Port number identifies the application


• Session• Manages sessions between users

• Synchronizes web sessions, voice and video data in web conferences

• Presentation• Provides data format information to the application (layer)

• Data encrypted, data is .jpg picture, data compressed



• Data encrypted, data is .jpg picture, data compressed

• Application• Perform services for the applications used by the end users

• DNS, HTTP, FTP, SMTP

• TCP/IP Application Layer maps onto all the above OSI

layers

In Summary the Lecture has covered:

• Layered Network Architectures

• The Communication Process

• Protocol and Reference Models



01 - introduction sem 2 2010

Documents

pass 2nd attempt

refer weekly schedule

weekly module tests

subsequent lab session

unit outline held

communication process protocol

weekly schedule

final mark