16 WAN architectures
This chapter covers
- Connecting remote sites using wide area network technologies
- Different types of internet connections
- Creating virtual private networks over the public internet
In the previous chapter, we covered local area networks (LANs) of various types and scales, from SOHO networks, to two- and three-tier campus LANs and even specialized data center networks that are essential for hosting an enterprise’s key servers. But LANs are just one piece of the puzzle; most enterprise networks are not confined to a single physical location.
Take, for example, a multinational corporation that has its headquarters in New York, manufacturing facilities in China, and regional offices scattered across Europe. Each of these locations ...
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