Network Operations

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Ukraine as a Laboratory of Internet Resilience

Eliza Rohotska

• 24 Feb 2026

• 14 min read

Ukraine’s Internet has not collapsed under invasion - it has adapted. This article examines what that reveals about the concept of resilience in the context of Internet infrastructure and the people who keep the networks running.

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When ToR Instability Collapses Cross-Rack Redundancy Without Breaching SLA

Ruslan Seyidov

• 24 Feb 2026

• 7 min read

This article examines a two-rack deployment where ToR instability quietly collapsed redundancy while SLA metrics remained within bounds, revealing how service-level monitoring can mask structural risk.

Testing IXP Configurations Without Breaking Production: A Digital Twin Approach

Tommaso Caiazzi

• 23 Feb 2026

• 7 min read

Configuration mistakes at an IXP can have immediate impact. Building on the earlier IXP Digital Twin project, this article presents a new dashboard that enables operators to recreate production environments, validate routing state, and test member onboarding off production.

Forward to Hell? On Misusing Transparent DNS Forwarders For Amplification Attacks

Maynard Koch

• 12 Feb 2026

• 10 min read

DNS infrastructure is infamous for facilitating reflective amplification attacks. Countermeasures such as server shielding, access control, rate limiting and protocol restrictions have improved the situation, but DNS-based reflective amplification attacks persist. Focusing on the threat vector intr…

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Peering Market at a Glance: Trends, Transformations, and the Regional Dynamics of Internet Interconnection

Flavio Luciani

• 10 Feb 2026

• 3 min read

Recent claims that IXPs "aren’t showing significant growth", that more interconnection is happening outside exchanges, and that peering can be more expensive than transit challenge long-standing assumptions about the role of IXPs. But do these claims hold up? A new paper from NAMEX explores the dat…

DNSSEC and PQC: Practical Impact of Increased TCP in DNS

Eline Stehouwer

• 29 Jan 2026

• 17 min read

Post-quantum cryptography could make DNSSEC responses bigger, pushing more DNS traffic from UDP to TCP. In this guest post, Eline Stehouwer (SIDN Labs) explores what that means for authoritative name servers, replaying real .nl traffic across NSD, Knot, BIND and PowerDNS.

Raffaele Sommese - The Technical Impact of Rapid-Response Blocking: Italy’s Piracy Shield

Alun Davies

• 26 Jan 2026

• 2 min read

In our latest episode, Raffaele Sommese of the University of Twente shares insights from him and his colleagues on Italy’s Piracy Shield and how rapid-response blocking works in practice. We get into the technical impact, how it can be measured, and the consequences for connectivity.

The IRR Landscape: Data Quality - the Good, the Bad, and the Outdated

Tobias Striffler

• 20 Jan 2026

• 21 min read

In the second of our IRR landscape series, we focus squarely on data quality: how accurate, current, and usable IRR routing data really is. Using freshness, DFZ alignment and RPKI conflicts, we spotlight where third-party IRRs drift and why cleanup matters.

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ASPA in the RPKI Dashboard: A New Layer of Routing Security

Tim Bruijnzeels

• 15 Dec 2025

• 10 min read

ASPA is now available in the RIPE NCC RPKI Dashboard, adding a way to express and validate your upstream relationships on top of ROA-based origin validation. Building on its introduction at RIPE 91, this article explains what ASPA does, why it matters, and how to start thinking about deployment.

NRO RPKI Program - 2025 in Review

Sofía Silva Berenguer

• 9 Dec 2025

• 2 min read

2025 is coming to an end, and we want to pause to reflect on our achievements this year as part of the NRO RPKI Program.

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