Summary
As with our coverage of Layer 2, 3, and 4 protocols, there are many other more detailed books covering the Application layer protocols we saw in this chapter. Hopefully, however, this chapter has served to give a better understanding of the ways in which TCP, UDP, and IP can be combined to provide application services, all optionally wrapped in SSL for greater security. Equipped with this understanding, we can begin to understand the concepts of content switching and put the techniques to use to solve many of the scalability problems of modern IP networks.