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Introduction to Computer Networking with a Hands-on Connectivity Project

This course will use simple examples to demonstrate how computers can exchange information. During this course, you will be led in a step-by-step fashion to...
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Platform: Skillshare
Video: 1h 22m
Language: English
Next start: On Demand

Table of contents

Description

This course will use simple examples to demonstrate how computers can exchange information.  During this course, you will be led in a step-by-step fashion towards building simple networks and then analyze how communications are established, maintained and terminated.  This networking course is meant for mere mortals that want or are studying computer networking, and would like a foothold small project to get started.  Some basic knowledge of the OSI will be helpful, but you can still follow along and then that model will make even more sense if you want to study it some other time.

Some examples will use ICMP messages and the course project will include a connection oriented application HTTP using TCP.  Packet Tracer will be used to simulate the networks and examine frames and packets during the exercises and the course project. 

For the simulator, you will need Cisco’s Packet Tracer.  To install Packet Tracer and test it out before you start the project, use the three last video lessons and replicate their described steps.

You will learn

Your objective is to use Packet Tracer to simulate a network and analyze the communications between the networked devices.  In this project, you will investigate the communications between a computer and a web server.

Follow the instructions used in the ICMP example on how to peek into frames and packets to understand how end nodes communicate.  For your project, you will go through a similar process except that you will be accessing a web page.

Suggested steps:

0. Quickly review the OSI Model’s layers 1, 2 and 3 (not mandatory).  There will be a separate course on this topic (stay tuned)

1. Use a hub or a switch to connect several PCs/laptops to a web server

2. Assign a class A, B or C addresses (Pick one) to all end nodes.  Make sure that all end nodes are in the same network domain.  Make sure that each end node has a unique IP address.

3. Use proper cabling (straight through versus cross over) to connect all devices in a star formation.

4. Modify the webpage on the server and make sure that the HTTP service is up.

5. Ping all devices to make sure that you have connectivity.

6. Use a web interface (Browser) on any end unit to make sure that you’re accessing the webpage.

7. Start step 6 over but this time go to simulation mode and observe the frames (Layer 2) and Packets (Layer 3) as the TCP connection gets established and the webpage gets loaded on a device’s interface. 

8. Take notes and research what you observed and then try to formulate a conclusion.

Packet Tracer file is included if you need to replicate the course content.

Requirements

There is no prerequisite, anyone can begin this course.. This course is also great for beginners without any HTTP With TCP knowledge.

This course is for

This course is suitable for beginners.
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Platform: Skillshare
Video: 1h 22m
Language: English
Next start: On Demand

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