Introduction

 

 


 

Purpose: 

The objective of this lesson is to provide a general overview of the Open Systems Interconnection  (OSI) Reference Model that modern computer networks are modeled after, with particular attention to TCP/IP networks (the Internet).  At the end of this lesson, students should be able to:

1.                     Define relevant network terminology

2.                     Describe the function of the 7 layer OSI Reference Model

3.                     Explain the relationship of TCP/IP within the 7 OSI Model

4.                     List 3 key points about the TCP/IP

5.                     Define basic hardware for Internet connections

6.                     Explain the difference between a standard and protocol

 

Evaluation:

1.         Network Definitions Crossword Puzzles

2.                   Unit Test (Internet Basics)

 


 

Review of the Internet Concepts

The Internet http://bwilkins.panola.cc.tx.us/realmedia/Internet.rm

 

This mini-lecture has a minute or so of no narration at the end--do not be alarmed! To see these mini-lectures you'll need the RealPlayer--its free! Click here to download RealPlayer . (Running Time: 8 minutes)

 

 


 

 

1.      Define relevant network terminology

Figure 1 – Switched Network

Figure 2 – Digital Communications


2.      Describe the functions of the 7 layer OSI Reference Model

Figure 3 - Open System Interconnection (OSI)

 

 

 

 

                                      

 

 


 

3.      Explain the relationship of TCP/IP to the 7-layer OSI Model

Figure 4 - TCP/IP and OSI Reference Model

Figure 4 - Sample Mapping to OSI

 

Figure 5 – OSI, TCP/IP, User and Host


4.      List 3 key points about the TCP/IP Protocol Suite

Figure 6 – TCP/IP Protocol Suite


5.      Define the basic hardware for Internet connections

Figure 7 – Network Hardware

 

Figure 8 – Networking Media


 

6.    Explain the difference between a standard and a protocol

 

Figure 9 – Vendor Protocols

 


Summary

Figure 10- Summary

Figure 11 - TCP/IP and OSI Summary


 

Readings:

(All readings are web-based, consistent with the topic content)

 

Network Definitions Reviewed

OSI – Open Systems Interconnection Definitions

 

OSI 7 Layer Model Tutorial       

 

OSI Model Structure

 

TCP/IP 

 

TCP, IP, TCP/IP, HTTP Introductions

 

A Beginner's Guide to TCP/IP

 

TCP/IP and OSI


 

ADDITIONAL SUGGESTED READINGS:

 

TCP/IP Tutorial

Networking Terminology Definitions

 

 

 


 

 

Graphics Acknowledgement and More Suggested Readings

Graphics are courtesy of the following web pages.

All Rights Reserved to original Web Page Owners.

 

Figure

Name

URL  

1

Switched Network

http://www.sangoma.com/home.cfm?pick=5&content=tech-FAQ_intro.cfm

 

2

Digital Communications

http://129.62.163.236/datacomm/TCP-IP.htm

3

OSI Reference Model

http://elgar.tvu.ac.uk/pct/pctnew07.html

 

4

TCP/IP and OSI

http://www.techweb.com/encyclopedia/defineterm?term=TCP%2FIP&exact=1

 

5

Sample OSI Mapping

http://www.fsu.umd.edu/dept/cosc/htracy/cosc120/MODULES120/Tcp-ip.htm

6

TCP/IP, OSI, User, Host

http://www.fsu.umd.edu/dept/cosc/htracy/cosc120/MODULES120/Tcp-ip.htm

 

7

TCP/IP Protocol Suite

http://elgar.tvu.ac.uk/pct/pctnew07.html

 

8

Networking Hardware

http://www.sangoma.com/home.cfm?ID=1000

 

9

Networking Media

http://168.212.14.5/techportfolios/tuttle/techtipscisco.htm

 

10

Vendor Protocols

http://elgar.tvu.ac.uk/pct/pctnew07.html

 

 

11

OSI Summary

http://168.212.14.5/techportfolios/tuttle/techtipscisco.htm

 

 

12

TCP/IP and OSI Summary

http://129.62.163.236/datacomm/TCP-IP.htm

 

 

 

 

 

 

 


 

Network Terminology

 

 

Terminology

Defintion

 

32bits

 

 

access

 

 

address_field

 

 

address_resolution_protocol

 

 

addresses

 

 

ADSL

 

 

ANSI

 

 

AOL

 

 

application

 

 

application_layer

 

 

architecture

 

 

ARP

 

 

ARPAnet

 

 

AS

 

 

asynchronous

 

 

ATM

 

 

bandwidth

 

 

baud

 

 

BGP

 

 

bits

 

 

broadband

 

 

browser

 

 

byte

 

 

cables

 

 

cabling

 

 

caching

 

 

CCITT

 

 

Cerf

 

 

CGI

 

 

check-sum

 

 

class_C

 

 

classes

 

 

classless_addresses

 

 

client

 

 

communications

 

 

computer

 

 

computer

 

 

configuration

 

 

connection

 

 

control_field

 

 

CSS

 

 

dat

 

 

data

 

 

data

 

 

data_compression

 

 

data_field

 

 

data_link_layer

 

 

database

 

 

datagrams

 

 

data-link

 

 

DCE

 

 

defacto

 

 

degradation

 

 

devices

 

 

DHCP

 

 

DHTML

 

 

digital

 

 

DNS

 

 

domains

 

 

DSL

 

 

DTE

 

 

dumb_network

 

 

dynamic

 

 

echo

 

 

e-commerce

 

 

EGP

 

 

error_detection

 

 

error-checking

 

 

ethernet

 

 

exchange

 

 

fiber_optics

 

 

format

 

 

frame

 

 

FTP

 

 

FTP

 

 

full-duplex

 

 

function

 

 

gateway

 

 

half-duplex

 

 

handshaking

 

 

hardware

 

 

HDLC

 

 

hierarchical

 

 

high-speed

 

 

history

 

 

hop

 

 

host

 

 

host_number

 

 

HTML

 

 

http

 

 

hypertext

 

 

IANA

 

 

ICMP

 

 

ICMP

 

 

IGMP

 

 

IGP

 

 

indirect_routing

 

 

interface

 

 

internal_table

 

 

Internet

 

 

intranet

 

 

IP

 

 

IPX

 

 

ISO

 

 

ISP

 

 

ITU-T

 

 

java

 

 

Kahn

 

 

kbps

 

 

Kermit

 

 

LAN

 

 

local

 

 

lookup

 

 

loopback

 

 

lower_layer

 

 

MAC

 

 

message

 

 

MNP

 

 

modems

 

 

NAT

 

 

netmasks

 

 

NetWare

 

 

network

 

 

network_layer

 

 

network_number

 

 

network_segment

 

 

networked

 

 

NFS

 

 

NIC

 

 

NIS

 

 

NLSP

 

 

nodes

 

 

online

 

 

Open_Systems_Interconnect

 

 

operating_systems

 

 

OSI

 

 

OSI_7_layer

 

 

OSPF

 

 

packets

 

 

physical_layer

 

 

platform_independent

 

 

plugins

 

 

Point-to-Point

 

 

PPP

 

 

presentation_layer

 

 

programmers

 

 

protocol

 

 

protocol_stack

 

 

protocol_stack

 

 

protocol_suite

 

 

Proxy

 

 

RARP

 

 

realtime

 

 

reassembled

 

 

recovery

 

 

reference_model

 

 

remote

 

 

RFC

 

 

RIP

 

 

RIP/SAP

 

 

router

 

 

routing

 

 

routing_table

 

 

rules

 

 

security

 

 

sender

 

 

server

 

 

session_layer

 

 

SLIP

 

 

sniffer

 

 

SNMP

 

 

socket

 

 

software

 

 

standard

 

 

standards

 

 

start_bit

 

 

static_address

 

 

stop_bit

 

 

stream

 

 

subnetted

 

 

subnetting

 

 

subscriber

 

 

switch

 

 

symmetric

 

 

synchronous

 

 

system

 

 

TA

 

 

TCPIP

 

 

telecommunication

 

 

telephone_line

 

 

telnet

 

 

terminal

 

 

topology

 

 

trafic

 

 

transmission_protocol_control

 

 

transport

 

 

transport_layer

 

 

twisted_pair

 

 

UDP

 

 

UNIX

 

 

UNIX

 

 

upper_layer

 

 

user

 

 

v.42

 

 

video

 

 

virtual

 

 

WAN

 

 

web

 

 

workstation

 

 

XML

 

 

Xmodem