[Skunkworks] The 'Iranian Internet'

Fellow Geeks, Just wondering how Iran would build an-Internet-separate-from-the-Internet. What would they be using to keep that traffic within? From a technical perspective, what does the architecture look like? The BBC has called it 'an extended national intranet'. Maybe the John Gitaus of Skunkworks could be helpful in the explaining this to a brother? http://m.washingtonpost.com/world/national-security/iran-preparing-internal-...