Although it may seem a trivial concept, proper documentation and diagrams serve to differentiate properly managed and structured networks from thrown-together networks. Documentation allows new staff to be brought up to speed quickly, allows non-technical staff to understand the design of the network, and helps potential customers and clients of the business to build confidence in the network.

In this section, we will first discuss some general documentation and diagramming concepts, after which we will dive into the documentation required for physical infrastructure on the network. We will lastly explore some of the common operational procedures that you are likely to come across while administering a network.