ABSTRACT
In previous chapters in this book, we discussed, described, and developed mathematical models that you could exercise to determine the performance of a local area network (LAN) or the wide area network (WAN) transmission facility used to connect two geographically separated LANs. The use of many of the models developed in this book depends on one or more frame or packet characteristics, such as the average frame length, the number of frames flowing to a particular station per unit time, or a similar metric. In prior chapters we assumed the information could be obtained. In this chapter we discuss and describe two network monitoring tools you can use to obtain detailed information that can be used as input to one or more models previously developed in this book.
