IS101 Networking - Route and Switch - Cisco CCNA and CCENT

This lecture provides an overview of the OSI Model.  It is important once you start troubleshooting networks because if you can isolate the problem to a specific layer it becomes much easier to solve the problem.

Also OSI model questions are always asked at interviews.

Please download and review the attached OSI model notes.

This lecture discusses encapsulation this provides more detail between the layers and is important for Troubleshooting networks and Interview Questions.

This lecture discusses the 3 way hand shake,  Also another common source for interview questions.

Please download and review this excellent detailed paper on the 3-way handshake.

Its important to learn the binary to decimal conversions.  Because Humans use the Decimal numbers for IP Addresses but the computer uses the binary numbers.

Please download and review this excellent summary after watching the video.

Another lecture and excellent resource for conversion between decimal and binary numbers.

Work through these IP addressing Examples please.

Work through these IP addressing Examples please.

Welcome to VLSM.

All modern networks use VLSM this concept carries over to IPV6.  It is easier t understand in IPV4 but easier to implement in IPV6.

Please watch the video and download and review the e-book chapter attached.

Thank you

Andrew

Continued VLSM please see previous section for downloadable resources.

Thank you

Andrew

Check your VLSM solutions with online VLSM calculators.  Use these tools to speed up your assignments at work.

IPV6 is the addressing we will use now and in the future.  You may see IPV4 often and it is easier to learn IPV6 after learning IPV4 it is intended that you work through the IPV4 material first.

Please see the excellent IPV6 presentation attached.

Thank You 

Andrew.

IPV6 is the addressing we will use now and in the future.  You may see IPV4 often and it is easier to learn IPV6 after learning IPV4 it is intended that you work through the IPV4 material first.

Please see the excellent IPV6 presentation attached.

Thank You 

Andrew.

Static Routing.

Yes we touch on routing in this course because routeing is required for connectivity between VLANS and the goal of this course is to master VLANS.

Below are some excellent resources on VLANS.

Thank you

Andrew

Please take a look at this document starting at page 22. This is the decimal method. This is what really brought sub-netting together for me. Read and work through these and you will soon be sub-netting anything quick in your head.

See below the project 1 solution .doc

After you download GNS3 you need to load an ISO image onto the router.

GNS3 can use switches by adding a switch module to the Router.  The only difference is the older commands to assign VLANS is used on the GNS3 Switch module. I preform congis in both GNS3 and on rela switch the concepts are the same the configs are slighlty different for the VLANS.  You are not required to purchase switches everything can be accomplished in the free GNS3 Cico Emulator.  But you can purchase Cisco switches on eBay if you like.

Once you add the IOS image to your router follow this video to add the switch module to the router.

Playing around with the switches and performing some simple initial configurations.

Playing around with the switches and performing some simple initial configurations.

Why Switch? These videos explain why we use switches instead of hubs.  Please see the attached excellent resource on switches.

Why Switch? These videos explain why we use switches instead of hubs.  Please see the attached excellent resource on switches in the previous lecture.

Why Switch? These videos explain why we use switches instead of hubs.  Please see the attached excellent resource on switches in the previous lecture.

Vlans is what its all about, don't give up until you understand VLANS very well.  Attached is an excellent resource.

See it in action lets use wire shark to look at the data.

See it in action lets use wire shark to look at the data.  You want to be very comfortable using wireshark it is a great troubleshooting tool.

More about wire shark

More about wire shark

This is a Project I used for a few semesters using wire shark to sniff the wire.  Please try to work through the problem before looking at the solution.

This is the solution to the sniffer lab.  Did you get it right?

You may want to work through these Example LAN and VLAN labs before attempting Project 3 & 4

You may want to work through these Example LAN and VLAN labs before attempting Project 3 & 4

This is PROJECT 3 THE  LAN Assignment,  I used this on multiple times in the switch class as well.  Please try to work through this assignment before looking at the solution.

Please watch this solution to the LAN Lab.  The write up is included for download.

Thank you

Andrew

This is PROJECT 4 THE VLAN Assignment,  I used this on multiple times in the switch class as well.  Please try to work through this assignment before looking at the solution.

Solution to Vlan Assignment.