Can anyone tell me how much data usage is taken up by teleworking with VPN to my work?
The VPN itself generates very little traffic. Maybe none at all. What matters is what you do with it. Downloading files locally will eat into your allowance obviously but Remote Desktop doesn't have to use much.
It will depend on how the remoting is performed. Some remote desktop software (VNC is one I think) actually send the desktop as a bitmap and that could involve sending a lot of data although presumably it tries to only send what's changed. Remote Desktop that comes with Windows doesn't do that - it sends drawing instructions when it can and relies on your local machine to render the graphics. Thus it can say 'draw a button here' rather than having to send several hundred pixels worth of bitmap. That means it's quite efficient and won't use up much of your allowance. But if you're working with anything graphic such as a video presentation on the remote machine then it would probably eat up a lot of your allowance no matter what remote software you use. You can probably tell how your software works by whether it seamlessly adapts to your local monitor or if it needs to scale the remote machine's screen.
But if you're just controlling a remote machine and editing text documents or spreadsheets on it I doubt it will use much bandwidth if it's the efficient type of software (ie;Windows Remote Desktop). Our office connection has 4Mb/s down and 2Mb/s up yet three of us can work from home during bad weather. We control machines to either modify Word documents, develop software using Visual Studio or configure SharePoint or Exchange servers. For three of us to share the office connection suggests very little bandwidth for remote controlling those machines.
Edit: An interesting document here - http://www.google.co.uk/url?sa=t&rct=j&q=bandwidth+r...
Edited by Andrue (Sun 08-Apr-12 17:58:47)