I manage a network with about 400 IP devices plugged into to our LAN. I know how to use VLAN's and I have a test environment in place with routing and everything working great.
My final questions before I start breaking our production network down are:
1) At what point is using VLAN's required on a LAN when security isn't a concern on the LAN?
2) Is there a certain number of devices the we should try to stay under per VLAN?
3) Is it possible for the VLAN routing on our backbone to cause noticeable latency?
I'm trying to avoid causing administration overhead where it isn't needed.