Internet
Internet tomography and topology modelling (BGP, IXPs, AS-level). We design routing protocols whose tables grow sub-linearly with network size.
Lines of work
Tomography
traceroute-like probes, analysis of measurement bias, and discovery of hidden MPLS tunnels.
AS-level topology and BGP
Modelling the autonomous-system graph, k-core decomposition of the Internet, and tracking CDNs in the network core.
Latin American IXPs
IXP deployment in developing countries and its impact on Quality of Service and traffic economics.
Standards (IETF)
IETF contributions — RFC 9198 (AURA) on standardising unidirectional measurements — and proposals for sub-linear EGP routing.
Flagship initiative
First IXPs of Bolivia and Paraguay — Internet Society
We contributed to the design, deployment, and measurement of the first national Internet Exchange Points (IXPs) of Bolivia and Paraguay, under the Internet Society program. The work combines active network measurement with an economic and regulatory analysis of how IXPs change Internet access in developing countries. In collaboration with Dr. Hernán Galperin (USC Annenberg, formerly Universidad de San Andrés).
Related projects
CDNs en el núcleo de Internet (TMA 2018)
How content providers became central to the AS ecosystem after the rise of private CDNs.
