OSI Model Layer 3 - The Network Layer

In this video, I'll discuss IP addressing and routing in computer networks, called the Network Layer. This is Layer 3 of the OSI Model. This video is a part of my series on Networking fundamentals. 00:00 Intro 00:38 Why do we need IP addresses? 03:05 IP Address Structure 06:21 Classless Inter-Domain Routing (CIDR) 07:09 Where does IP Addressing Fit in the OSI Model 08:47 Traversing multiple Networks Links referenced in this video: https://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing