Cisco network icon topology misleading, is it really considered standard?
I NEVER use Cisco icons, choosing to use realistic Visio shapes depicting actual device/card layouts that you can get for from from visiocafe.com.
As Chopper said, Visio shapes are much better than Cisco icons. (I have yet to see a handheld that looks like a microwave.) In addition to visiocafe.com, Microsoft has a number of visio stencils available for download.
At least as useful as those Cisco icons is this set of widely accepted standard symbols... (although it seems to be missing DASD.)