Explore how data travels between computers across great distances and many different networks. Practice basic math in binary, decipher CIDR notation, calculate subnets, and learn how encapsulation works. Before the end of the video, you will encounter routing and routing protocol basics, and gain a thorough understanding of how the Internet works.
0:00 Introduction to the Network Layer
1:28 The Network Layer
2:44 What are IP Addresses?
5:22 IP Datagrams and Encapsulation
11:56 IP Address Classes
15:46 Address Resolution Protocol
17:47 Subnetting
19:54 Subnet Masks
27:12 Basic Binary Math
33:53 CIDR: The Network Layer
38:24 Basic Routing Components
46:37 Routing Tables
50:05 Interior Gateway Protocols
55:43 Exterior Gateway Protocols
58:45 NonRoutable Address Space
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