A certain amount of upload and download activity is obviously to be expected on any network. Moving files around -- both inside the corporate perimeter and beyond -- is just a fact of daily life for most businesses these days. Heavy-duty files can start to take a toll. Even relatively light files such as simple documents or spreadsheets can become cumbersome when moved en masse, as with a batch download from Dropbox (pictured) or a similar service. "File sharing and downloading still occupy important segments of bandwidth consumption," said Bourque.