Campus Event Calendar

Event Entry

What and Who

Understanding and Improving the Resilience of the Internet using the Measurement Lens

Georgios Smaragdakis
TU Berlin
MPI Colloquium Series Distinguished Speaker
AG 1, AG 2, AG 3, AG 4, AG 5, SWS, RG1, MMCI  
Public Audience

Date, Time and Location

Monday, 18 December 2017
60 Minutes
E1 4


The Internet has revolutionized the way people, corporations, and
governments communicate, publish, access, utilize, and search for
information. As our globally-connected digital civilization increasingly
relies on its smooth operation, any disruption has a direct negative
impact on the economy, society, and productivity. Thus, it comes as no
surprise that many governmental and regulatory bodies characterize the
Internet as a critical infrastructure. In contrast to other critical
infrastructure sectors like energy, transportation, or water management,
the Internet evolves and expands in an uncontrolled way, driven by the
individual (often conflicting) decisions and investment strategies of
various Internet stakeholders. This uncoordinated and myopic growth raises
concerns about resilience and sustainability of the Internet, as shown by
recent cyberattacks and peering disputes.

In this talk, I will present my research work that tries to assess the
state and health of the Internet and its performance under stress using
the lens of Internet measurements. I first show how we utilize available,
yet unexplored, information that is propagated using Internet protocols to
map critical components of the Internet infrastructure and create a
first-of-its-kind physical connectivity map of the Internet. Then I will
show how we can use this map and augment our approach with passive and
controlled active measurements to (i) detect peering infrastructure
failures around the globe, (ii) pinpoint the epicenter of the failure, and
(iii) assess the impact of such failures to other infrastructures and
end-users. I will also discuss how our measurement approach can infer
attack mitigation activity in the Internet and evaluate the benefits of
coordination to defend against cyberattacks. The insights gained by our
study can inform peering, attack mitigation, protocol design, and
regulatory decisions to improve Internet resilience based on hard


Jennifer Müller
--email hidden
passcode not visible
logged in users only

Jennifer Müller, 11/28/2017 15:43 -- Created document.