The Interconnection Measurement Project is an annual initiative of the Center for Information Technology Policy at Princeton University. We work with ISPs and Deepfield, a company that provides the data collection and analysis platform, to gather information that provides a unique window on this important function of the Internet. CITP and the participating ISPs will annually assess whether the project remains relevant as Internet interconnection continues to evolve.

Visit Princeton’s Center for Information Technology Policy Website

Frequently Asked Questions

Q: Which ISPs contribute data?

Currently, seven ISPs contribute data: Bright House Networks, Comcast, Cox, Mediacom, Midco, Suddenlink, and Time Warner Cable. Our goal is to expand our data set; please get in touch if you wish to participate.

Q: Why is this data of interest?

The Internet is a network of networks, linked at interconnection points to ensure the flow of data. To date, efforts at measuring aspects of interconnection have been indirect inferences taken from Internet endpoints embedded within ISP’s networks. The Interconnection Measurement Project is different: It collects data directly at points of interconnection, thus providing a more accurate and reliable picture.

Q: What about privacy considerations?

The Interconnection Measurement Project uses sampled flow statistics and a measurement tool developed by Deepfield. All data is collected using technology based upon open Internet standards (IETF RFC 1157 (SNMP) and 7011 (IPFIX)) that are commonly used as part of standard network management operations. ISPs provide only anonymized data to CITP, and no information concerning individual Internet users is collected.

Q: Who pays for this?

Project participants deploy the measurement tool at their own expense. CITP is working with participating ISPs and other project participants to establish and maintain a fair and equitable funding mechanism for CITP.

Nick Feamster

Project Director and Professor of Computer Science at Princeton University

Nick is currently serving as the acting director of CITP from June 1, 2015 to December 31, 2016. Nick is also a professor in the Computer Science Department at Princeton University. Before joining the faculty at Princeton, he was a professor in the School of Computer Science at Georgia Tech.