investigation in Section \[sec:setup\] and Section \[sec:mathishard\] describes a mixed methods approach used to interpret measurements and extract broader information on the nature of the network. Finally, these techniques are applied in Section \[sec:findings\] toward identifing periods of significant interest in the connectivity of Iran-originating users. We conclude by enumerating the outstanding questions and future research directions.

Domestic Network Structure Considerations {#sec:infrastructure_considerations}
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After the declaration that the incumbent president, Mahmoud Ahmadinejad, had won a majority in the first round of voting, supporters of reformist candidates rallied against what was perceived to be election fixing in order to preserve the status quo of the power structure of the state. Already well-acquainted with bypassing Internet filtering using circumvention and privacy tools, such as VPNs and Tor, government blocks on YouTube and Facebook were minor impediments for activists to share videos and news in support of their cause. Unused to large-scale challenges against the legitimacy and integrity of the system, the government appears to have responded by ordering the shutdown of mobile phone services, increased filtering of social media sites and the disruption of Internet access [@bailey2011censorship].

Iran’s telecommunications infrastructure and service market differs substantially from the regulatory environment of broadcast television, 