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Chab Erch

Chab Erch

Resilience of national Internet segments in 2024

Resilience of national Internet segments in 2024

Executive summary * On average, global resilience continued to improve, but at a modest pace — from 25.7% in 2023 to 24.79% in 2024 (lower is better). * In 2024, Brazil ranked first in both the IPv4 resilience ranking (0.98%) and the IPv6 resilience ranking (2.15%). * The Netherlands and
20 Jan 2026 14 min read
The case of mysterious BGP session resets caused by a malformed OTC attribute

The case of mysterious BGP session resets caused by a malformed OTC attribute

We recently ran into an unusual issue: BGP sessions were resetting with no obvious explanation shortly after routers received new routes. To understand what was happening, we collected and analyzed the BGP UPDATE messages that consistently triggered the errors. It quickly became clear that all problematic routes had one thing
15 Jan 2026 5 min read
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This is Yo, a brand new site by Chab Erch that's just getting started. Things will be up and running here shortly, but you can subscribe in the meantime if you'd like to stay up to date and receive emails when new content is published!
15 Jan 2026
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