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CITP Conference on Global Internet Interconnection

Friday, March 11, 2016
4:00 pm


Frist Multipurpose Rooms A-B
This conference will be videotaped and livestreamed. The Twitter hashtag for this conference is #interconnection.

Video Recordings:

Panel 1: The Evolution of Interconnection
Panel 2: Congestion and Interconnection
Lunch Keynote: Walter Johnston
Panel 3: Interconnection Pricing

Conference slides:

Panel 1: The Evolution of Interconnection:
Jane Coffin slides
Joseph Hall slides

Panel 2: Congestion and Interconnection:
Christopher Yoo slides

Keynote Speaker
Walter Johnston slides

Panel 3: Interconnection Pricing:
Andrew Odlyzko slides
Bill Lehr slides
Yiannis Yiakoumis slides

The ways that content and Internet service providers interconnect on the Internet are playing an increasingly important role in the nature of the Internet. Interconnection affects many aspects of the Internet experience, including user quality of experience for streaming video, the costs that consumers bear for Internet access, and the security and privacy of consumer data.

  • The rise of streaming video content has introduced significant congestion along Internet paths, raising questions about the causes of this congestion, as well as ways to mitigate it.
  • The Open Internet Order raises new issues about reasonable network management practices for managing traffic demand and congestion.
  • “Zero-rating” and sponsored content present important questions and concerns about citizens’ access to connectivity and content.
  • The rapid proliferation of Internet exchange points in various parts of the world is changing the characteristics of trans-national Internet traffic; at the same time, the Internet remains vulnerable to traffic redirection attacks, sometimes to regions where users do not want the traffic to go.

This CITP conference will present a mix of technical and policy perspectives on interconnection. We will explore the ongoing (and forthcoming) technical developments in Internet interconnection and explore how these and other developments relate to the increasingly colorful and nuanced regulatory and policy questions in this space.


9:00 a.m. – 9:15 a.m. – Continental breakfast

9:15 a.m. – 9:30 a.m. – Welcome: Nick Feamster, Princeton University

9:30 a.m. – 10:45 a.m. – Panel 1: The Evolution of Interconnection

Discussion questions:
• How does the rise of IXPs affect concerns about surveillance and trans-national data flows?
• How do wireless mesh networks play a role in improving interconnection and local communications?
• How does the rise of Software Defined Networking change the nature of peering and interconnection?
• What are the implications of global IXP proliferation for Internet performance?

Moderator: Kevin Werbach, University of Pennsylvania


  • Jane Coffin, Internet Society
  • Arpit Gupta, Princeton University
  • Joseph Hall, Center for Democracy and Technology

10:45 a.m. – 11:00 a.m. – Break

11:00 a.m. – 12:15 p.m. – Panel 2: Congestion and Interconnection

Discussion questions:

  • What is the current state of Internet interconnection?
  • What are the main mysteries surrounding Internet interconnection today?
  • What tools do we have to identify and locate Internet interconnection issues? Are they adequate?
  • Are there different models of interconnection being proposed or used today? What technical, policy, and economic implications might some of those alternative have?

Moderator: Nick Feamster, Princeton University


  • Jason Livingood, Comcast
  • Collin Anderson, Independent
  • Christopher Yoo, University of Pennsylvania
  • Brian Rogan, Google

12:15 p.m. – 12:45 p.m. – Lunch

12:45 p.m. – 1:30 p.m. – Keynote Speaker: Walter Johnston, FCC

1:30 p.m. – 1:45 p.m. – Break

1:45 p.m. – 3:00 p.m. – Panel 3: Pricing Interconnection

Discussion questions:
• What are the different ways of pricing Internet interconnection?
• What are the effects of data caps, pay-as-you-go pricing on Internet use?
• How does zero-rating affect user demand for content or applications?

Moderator: Mung Chiang, Princeton University


  • Benjamin Bartlett, Facebook
  • Dhanaraj Thakur, Alliance for an Affordable Internet
  • Andrew Odlyzko, University of Minnesota
  • Bill Lehr, Massachusetts Institute of Technology
  • Yiannis Yiakoumis, Stanford University

In addition to these questions, our panelists will discuss open questions and future directions surrounding Internet interconnection.


Location of Conference


Frist Campus Center, Multipurpose Rooms A-B

Frist Campus Center

Once you enter the building from the upper level doors, go to the middle of the building to find the stairs to walk down to the Frist dining area. Walk straight through the seating area, and then turn toward your right. As you approach the doors to leave the buildng, turn toward your right again and go down the stairs. At the bottom of the stairs, Multipurpose Rooms A-B will be on your right.

By Car

Find driving directions, campus maps, and campus parking information on the Princeton University website.
If you park on campus, you probably will want to park in Lot 21 and walk or take the West/East Parking Shuttle Line to Frist. Shuttles may be tracked online or through a mobile app with TigerTracker.

There are also metered parking spots and parking garages on campus and nearby in downtown Princeton. The closest metered parking for Frist is Prospect Ave., but you may also reference this parking map.

By Plane

The closest major airports are Newark Liberty International Airport (EWR) and Philadelphia International Airport (PHL). Trenton-Mercer Airport (TTN) is also nearby but serves a limited number of routes, all flown by Frontier Airlines.
Once you land, please follow the driving or train directions to reach Princeton.

By Train

The Princeton Junction is the closest major train stop and is on both the NJ Transit Northeast Corridor Line and the Amtrak Keystone Service and Northeast Regional. These lines all serve New York Penn Station and Newark Airport (if you are flying out of EWR, be sure to get a ticket to Newark Airport, not Newark Penn Station). They also connect to the SEPTA at Trenton Station, and you can take the SEPTA to Philadelphia or other parts of southeastern Pennsylvania.

To reach the Princeton campus from Princeton Junction, you may take a 15-minute cab ride, or transfer to a small train (the “Dinky”). From Dinky Princeton station, you may either walk to Frist or take a shuttle.

It takes about two hours to travel from Princeton to Philadephia, New York Penn Station, or Newark Airport. If you are traveling to Newark Airport, be sure to get a ticket to the airport stop, not to Newark Penn Station.

Recommended Lodging

Local hotels sometimes offer discounted rates for Princeton guests and visitors. If you do not have a car, you also may wish to confirm whether the hotel will have shuttle service to campus when you are staying. Additional information and hotels can be found on the Princeton travel site.

Nassau Inn
Ten Palmer Square East, Princeton, NJ 0854
Phone: 609.921.7500
The Nassau Inn is within walking distance to campus. Click here for walking directions and a map to the conference from the Nassau Inn.

Residence Inn Princeton at Carnegie Center
3563 US Route 1, Princeton, NJ 08540
Phone: 609.799.0550

Hyatt Place Princeton
3565 US Route 1, Princeton, NJ 08540
Phone: 609.720.0200