This chapter describes functions common to most network management architectures and protocols.
Network management means different things to different people.
In some cases, it involves a solitary network consultant monitoring network activity with an outdated protocol analyzer. In general, network management is a service that employs a variety of tools, applications, and devices to assist human network managers in monitoring and maintaining networks. The early 1980s saw tremendous expansion in the area of network deployment. As companies realized the cost benefits and productivity gains created by network technology, they began to add networks and expand existing networks almost as rapidly as new network technologies and products were introduced. Each new network technology requires its own set of experts.