CICI: TCR: Building a more Resilient IPv6 from Passive Outage Detection (BRIPOD)

Project Description

The goal of the CICI: TCR: Building a more Resilient IPv6 with Passive Outage Detection (BRIPOD) Project is to improve observability of the IPv6 Internet using passive observations of IPv6 data to understand how IPv6 is being used, how reliable it is, and how improve it and encourage its use.

Internet Protocol version 6 (IPv6) is important help our globe-spanning Internet continue to meet the needs of billions of people tens of billions of computers. Unfortunately IPv6’s huge size (10^36 addresses) means techniques used to observe today’s IPv4 Internet cannot directly apply to IPv6.

The BRIPOD Project is improving the IPv6 Internet in three ways: (1) we are developing new approaches to observe the IPv6 Internet, and to develop IPv6 datasets that can be provided to researchers in ways that safeguard individual privacy. (2) We are developing new approaches to use such data to detect partial reachability and outages in the IPv6 Internet. And (3), we are developing methods to use these approaches to advise network operators about potential network problems and improve IPv6 reliability.

The outcomes of this project will be new IPv6 datasets for network research; better understanding of how the IPv6 Internet is like and different from the IPv4 Internet, including its reliability and how it is used; and encouragement for Research and Education networks to increase deployment of IPv6.

This project is a collaboration between the University of Southern California/Information Sciences Institute and MERIT Networks.

Support

BRIPOD is supported by NSF/CISE Office of Advanced Cyberinfrastructure as NSF OAC-2530698.

BRIPOD is a joint effort of USC/ISI and Merit Network, Inc.

People

Pierrette Renée Dagg, co-PI on this project, director of research (Merit Networks)
John Heidemann, PI on this project, project leader and professor (USC/ISI)
Yuri Pradkin, researcher (USC/ISI)

Publications

Shefalit Tushar Kulkarni and John Heidemann 2026. Bounding Mobile Latency from Network Interconnections. Proceedings of the Asian Internet Engineering Conference (AINTEC) (Taipai, Taiwan, Dec. 2026), to appear. [DOI] [PDF] Details
Shefalit Tushar Kulkarni and John Heidemann 2026. Bounding Mobile Latency from Network Interconnections (extended). Technical Report arXiv:2610.19156 [cs.NI]. USC/ISI. [PDF] Details
John Heidemann 2026. Partial Reachability in the Internet Core: Definition, Measurement, and Application (Abstract and Slides for Invited Talk). [PDF] Details
Sulyab Thottungal Valapu, John Heidemann, Mattijs Jonker and Raffaele Sommese 2026. Zombies in Alternate Realities: The Afterlife of Domain Names in DNS Integrations. Technical Report arxiv:2605.06880 [cs.CR]. USC/Information Sciences Institute. [PDF] Details
John Heidemann 2026. The Challenge of Partial Reachability in Active Measurement. Invited talk at CAIDA AIMS-19 Workshop. [PDF] Details
Guillermo Baltra, Tarang Saluja, Yuri Pradkin and John Heidemann 2026. Understanding Partial Reachability in the Internet Core. ACM New Ideas in Networked Systems (NINeS) (Feb. 2026). [DOI] [PDF] Details
Guillermo Baltra, Tarang Saluja, Yuri Pradkin and John Heidemann 2026. Understanding Partial Reachability in the Internet Core (extended). Technical Report arXiv:2601.12196. arXiv. [DOI] [PDF] Details
Yejin Cho and John Heidemann 2025. Smoothing Rough Edges of IPv6 in VPNs. Technical Report arXiv:2512.19698v1 [cs.NI]. USC/Information Sciences Institute. [PDF] Details
Yejin Cho and John Heidemann 2025. Poster: Rough Edges for IPv6 in VPNs. Proceedings of the ACM Internet Measurement Conference (Nov. 2025), 1048–1049. [DOI] [PDF] Details
Sulyab Thottungal Valapu and John Heidemann 2025. Towards a Non-Binary View of IPv6 Adoption. Proceedings of the ACM Internet Measurement Conference (Oct. 2025). [DOI] [PDF] Details

For related publications, please see the ANT publications web page.

Software

Datasets

We also make all datasets available through the ANT dataset page.