It usually takes hours to create a traditional network diagram, with a tool like Visio. The traditional network diagram is sometimes called network diagram which means the symbols in the map are defined statically by a human being and the underlying software has no knowledge about the symbols. For example, in the following Visio diagram, the router, the LAN and the WAN symbols are only meaningful to human engineers. The Visio software does not know why a cloud means WAN. In other words, Visio is just an electronic paper for you.