I've been tasked with creating some network diagrams and currently we don't have any specific software or format as standard. I was wondering what the best application would be to create diagrams with. I've been told that NetViz and Visio are two of the most popular ones.
Amongst other things they'd need to be able to download new shapes for switches/modules/routers, etc. when they are brought out by hardware companies.
Can anyone offer any advice?