Measurements and Statistics

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The DNS Server That Lagged Behind

The DNS Server That Lagged Behind

Stéphane Bortzmeyer

3 min read

Around the end of October and beginning of November 2024, twenty six African TLDs had a technical problem - one of their authoritative name servers served stale data. This is a tale of monitoring, anycast, and debugging.

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War Story: RPKI is Working as Intended

War Story: RPKI is Working as Intended

Job Snijders

8 min read

Three weeks ago, Fastly was the target of a BGP hijack similar to a far more widely-reported incident that happened back in 2008. But this time, barely anyone noticed. Why is that?

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A Detailed Look at Our Recent RIPE Atlas Infrastructure Migration

A Detailed Look at Our Recent RIPE Atlas Infrastructure Migration

Robert Kisteleki

15 min read

Our recent cloud migration is one of the most significant changes to RIPE Atlas in recent years, aimed at modernising our infrastructure and reducing costs. In this article, we give you a look at what’s been happening behind the scenes, some of the complexity involved, and how we’ll be improving th…

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Streamlining RIPEstat: Building an Interface for the Future

Streamlining RIPEstat: Building an Interface for the Future

Adonis Stergiopoulos

4 min read

For several years, RIPEstat has been supporting two user interfaces - the original 2013 version and a redesigned version introduced in 2020. While each has its strengths, maintaining two separate interfaces has introduced inefficiencies for both our users and our development team. After thorough an…

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The Next Generation of BGP Data Collection Platforms

The Next Generation of BGP Data Collection Platforms

Thomas Holterbach

12 min read

Existing BGP data collection platforms face challenges that threaten their long-term sustainability: their data comes with enormous redundancy and significant visibility gaps. We explore a new BGP data collection paradigm, already implemented in a prototype called GILL, that could stir change for o…

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IXP-from-Scratch: The Peering LAN

IXP-from-Scratch: The Peering LAN

Thomas Liske

13 min read

In the third of our “IXP from Scratch” series, we discuss our setup of the peering switches and route servers at DD-IX, an Internet Exchange located in Dresden, Germany. We explain how we connect our two PoPs and which security and safety mechanisms (L2 and L3) we configured to ensure reliable oper…

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Olympeaks: The Impact of the Paris 2024 Olympics on Italy's Internet Traffic

Olympeaks: The Impact of the Paris 2024 Olympics on Italy's Internet Traffic

Flavio Luciani

4 min read

The Olympeaks observatory, a monitoring initiative from NAMEX, captured the Internet traffic profile for Italian coverage of the Olympics. Here's their view of some of the main peaks.

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A Dive Into TLD Performance

A Dive Into TLD Performance

Arnold Dechamps

8 min read

DNS is a complex set of protocols with a long history. Some TLD's go as far back as 1985 - but not all of them are built equal. And not all of them have the same performance depending on where the end user is situated in the world. So just how different are they?

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How We Distribute RIPE Atlas Probes

How We Distribute RIPE Atlas Probes

Ulka Athale

7 min read

With a limited supply of hardware probes and thousands of networks yet to be covered, how do we prioritise the applications to host probes? In this article, we explain our hardware probe distribution strategy to improve RIPE Atlas’s global coverage.

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IXP-from-Scratch: Network and Security Design

IXP-from-Scratch: Network and Security Design

Thomas Liske

11 min read

In the second of our “IXP from Scratch” series, we introduce network and security design decisions as well as implementations we made at DD-IX, an Internet Exchange in Dresden, Germany. In principle, an IX consists of a single broadcast domain, but in practice it has to operate several services sec…

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