Side-by-side, Draw is similar to Visio in terms of functionality—offering the ability to create basic or complex diagrams, anything from flowcharts and organizational charts to network diagrams and 3D sketches. LibreOffice Draw runs on Windows, Linux, and Mac OS X.
Cisco has more formats. EPS ought be preferred. PPT could work to import & convert from Libre Impress. Can always get a Visio trial, and convert the art from there.
![Network Network](/uploads/1/2/5/8/125852343/309714880.png)
![Template Template](/uploads/1/2/5/8/125852343/689654266.jpg)
Also--
- Cisco icons,
http://www.cisco.com/web/about/ac50/ac47/2.html - Cisco pt2,
http://www.cisco.com/c/en/us/solutions/enterprise/design-zone-smart-business-architecture/cvd.html - Visio Trial,
http://www.microsoft.com/en-us/evalcenter/evaluate-visio-professional-2013
Interesting, but haven't tried the Libre converter. That is, the latest version & all that--