Chapter 8. Tunneling Technologies
Although tunneling technologies are generally thought of as being focused in the service provider space, they are actually finding a home in nearly all large-scale networks. This chapter does not focus on how the various available tunneling technologies work, but rather on how they are used, and what impact they can have on a network’s design.
Beyond understanding the operation and configuration of any given tunneling technology, a network designer needs to understand some specific factors that will impact the technology’s interaction with network design, including the following:
• How does the tunneling mechanism interact with applications running on top of the tunnel? Can packet ordering change within the ...