During the network design, categorizing networks based on the number of clients will greatly assist the design because, network design is highly depends on the size and needs of the customer’s organization. For example network infrastructure of a small network with some clients is very different from a large network infrastructure with a significant number of various devices which many variables must be considered during designing. Networks based on the number of clients are divided into three categories:

Small Networks: networks with up to 200 clients
Medium-Size Networks: networks with 200 to 1,000 clients
Large Networks: network with more than 1,000 clients