Chapter 13 - Internet: A Network Of Networks

1. Introduction
2. Network Technologies Are Incompatible
3. Coping With Incompatibility
   It is impractical, and may be economically infeasible, to require all computers in an enterprise to use the same network technology.
4. Two Fundamental Concepts
   • A Connection to a Network can be Extended (dial-up modem connection, dedicated modem connection, digital connection)
   • A Computer Can Have Multiple Connections (multiple NICs)
5. Using A Computer To Interconnect Networks
   Computers that interconnect networks are dedicated to the interconnection task. Although they use conventional hardware, they run special-purpose software that starts automatically when the system is powered on and remains operating at all times.
6. Interconnecting Computers Pass Packets
7. Interconnecting Computers Are Called Routers (Gateways)
8. Routers Are The Building Blocks Of The Internet
   The Internet is not a conventional computer network. It consists of thousands of computer networks interconnected by dedicated special-purpose compters called routers.
9. Routers Accommodate Multiple Types Of Networks
10. Routers Can Interconnect WANs and LANs
11. Interconnecting Networks Was Revolutionary

• Chapter 16 - Internetwork Operations

Terms

• fiber
• network of networks
• route
• router
• routing