There are many software programs to help build diagrams; the most popular being Microsoft Visio. But there are also free options as well, including Network Notepad, CADE, Dia, and Diagram Designer.

AUSTIN, TX--(Marketwire - Mar 6, 2013) - SolarWinds (NYSE: SWI), a leading provider of powerful and affordable IT management software, today announced the release of SolarWinds Network Topology ...