@jamal, what we trying to build first is on the backhaul capacity connection that you would need to sustain the resource, in this case the internet. And this backhaul makes a difference between failure or success of the network. ( I think by now it will be clear why the roads recently had to be dug up to sink fiber...hehehehe ). A simpler way to calculate the least network traffic : - Therefore, for a 100 user network( can be 10 clients with 10 users etc, notice I use cct kpbs and not DATA transfer KB/s ): a) http ( open one page ) - least minimum per user = 20kpbs * 100 ( at peak ) = 2000kbps b) ftp = ( you can fill this one ) c) pop = ( you can fill this one ) d) smtp = ( you can fill this one ) f) Torrents file sharing = ( you can fill this one, if you want to allow it ) h) vpn = ( you can fill this one ) Try and get more info on the traffic usage stats and fill in the above