What is the purpose of a network diagram in project management term?

Its make the technicians more easier to troubleshoot the problems when they know what exist on their network, and the technicians can know where and how each node is connected to another node. Network Diagram also help to provide big picture reason to the technicians can troubleshoot even faster with a minimum quantity of research.

It will be very usefull for the new technicians to learn more faster. Don't need to memorize the network over time because technician can use network diagram has a quick reference to turn and allow the new workers to be a helpful part of the team in a short time.