The chapter begins with a discussion of how to document information about a running network. We look at how, by carefully recording the performance of the network and its components, you can develop a baseline to refer to when assessing problems. Next, following a summary of the upgrading process, we discuss how to evaluate the need for a network upgrade. After examining which components can be upgraded, we offer guidelines for confirming that the network upgrade was successful. The chapter concludes with tips on how to move a network installation.
A review of Chapter 2, "Basic Network Media," is recommended. It can also help to revisit the earlier chapters of Part II, "Implementing a Network," especially Chapter 8, "Designing and Installing a Network," which covers how to take a network inventory.