14. The Public Internet: Unique Design Considerations

Much of our discussion up to this point has focused on design for private intranets and enterprise internetworks. How do things change when we design for the global, public Internet? How might the design of the public Internet interact with design considerations for enterprise internetworks?

The first six sections of this chapter deal with the overall design of the Internet, explaining how that system has evolved over time. They will be of particular interest to anyone designing for an Internet service provider, particularly for anyone designing a network for a backbone ISP, but they have other applications as well. For instance, understanding the structure of the Internet helps a business ...

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