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ANT Research News – Updates about research by the ANT group (Analysis of Network Traffic)

ant.isi.edu · 2,638 words · saved by 1 readers

We recently added timeline support to our Outage World map–clicking on an outage bubble pops up a window with a sparkline (a small graph) showing maximum outages on each data for the current quarter, and clicking on the “daily timeline” tab shows outages for the current 24 hours. These graphs help provide context for how long an outage lasts, and if there were other outages the same quarter.

Our new paper “Understanding Partial Reachability in the Internet Core” will appear at the 2026 New Ideas in Networked Systems (NINeS), a virtual meeting on February 10, 2026. Durations of peninsulas (regions with partial Internet reachability) as seen in 2017q4, showing that most peninsulas are brief, but some persist for days or months (Figure 4 from [Baltra26a]). We see similar results in 2020. From the abstract: Routing strives to connect all the Internet, but compete: political pressure threatens routing fragmentation; architectural changes such as private clouds, carrier-grade NAT,…

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