Network security can be tricky sometimes. You always want to follow best practices and ensure that those evil network hackers stay out of your beautiful network.   But many times you find that those same tactics you’ve used for keeping out the Riff-Raff has also locked you out of your …

ICND 1 – CCENT Video eCourse Module 8 “Local Area Networks”   In this 37 minutes video Joe shares his knowledge about local area networks (LAN). Starting from the history of the most fast-growing technology. Related Documents These docs might be helpful for this lesson MAC Vendor Lookup Lesson Quiz

ICND 1 – CCENT Video eCourse Module 7 “TCP/IP – Putting it all together”   18 minutes to put together what has been learnt in the previous videos, and see TCP/IP at work. A day in the life of a packet…  

ICND 1 – CCENT Video eCourse Module 5 “Fundamentals of TCP/IP”   Understanding TCP/IP. Second part dedicated to the de-facto networking protocol.

ICND 1 – CCENT Video eCourse Module 1 “TCP/IP Port Numbers”   In this 23 minutes video Jos explains all you need about TCP ports and port numbers. This video is part 3 in understanding the TCP/IP protocol stack and what a TCP port is as well as some of the …

ICND 1 – CCENT Video eCourse Module 3 “The OSI Model”   What is the OSI Model? We go over each layer of the OSI Model and give several tips for helping you memorize the seven layers of this networking standard. You Will Need to Memorize this: Physical Data Link …

ICND 1 – CCENT Video eCourse Module 2 “What is the Network”   What is a network? This module we review what a network is and what makes up a network. Functions of a Network Pieces of a Network Network Designs The Applications that use the network So the next …

ICND 1 – CCENT Video eCourse Module 1 “Introduction”   In this module we introduce you to the Cisco Certified Entry Network Technician certification. The history of CCENT The demand for Cisco Network Engineers What to expect from the ICND 1 test We also review the CCNA certification as well …

As your network begins to grow you start to see a need to logically separate different parts of your network into different broadcast domains. But what is a broadcast domains and how is it different from a collision domains? And how do I get two different broadcast domains to talk …

Collision Domains are layer 2 segments where computers can communicate over ethernet.  But what happens when your layer 2 ethernet segment gets too noisy and packets start colliding. Your network performance goes down the toilet and you starts getting complaints from your users.  Not a good thing! Welcome to the …