Measurements and Statistics

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BGP Path Attribute Filtering - A Powerful Tool to Mitigate Alien Attributes

BGP Path Attribute Filtering - A Powerful Tool to Mitigate Alien Attributes

Berislav Todorovic

11 min read

On 2 June 2023, there was a disruption in the global Internet routing, caused by the inability of BGP border routers to process an "alien" BGP Attribute. A nice RIPE Labs article about this event was published back then. Well, the alien turned out to be a "legal alien" - a known attribute, introduc…

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Quantifying Quality - A Community Engagement Quarterly Report

Quantifying Quality - A Community Engagement Quarterly Report

Hisham Ibrahim

10 min read

Efforts to gather feedback and assess satisfaction contribute to creating a strong and inclusive community. By actively seeking input, understanding community needs, and optimising workflows, the RIPE NCC ensures that its offerings are relevant, valuable, and aligned with expectations.

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RIPE NCC Internet Country Report: Central Europe

RIPE NCC Internet Country Report: Central Europe

Suzanne Taylor

3 min read

We take a comprehensive look at four countries in Central Europe as the next in our series of RIPE NCC Internet Country Reports.

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Unknown Attribute 28 - A Source Of Entropy in Interdomain Routing?

Unknown Attribute 28 - A Source Of Entropy in Interdomain Routing?

Emile Aben

13 min read

On 2 June 2023, there was a disruption in Internet interdomain routing. We got notified of recurring resets of some routers that take care of routing between networks, due to malformed BGP packets with BGP attribute 28. Here we take a first look at the event through RIS and offer some initial ideas…

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Usage Patterns of RIS Live at Code BGP

Usage Patterns of RIS Live at Code BGP

Ioannis Sermetziadis

8 min read

RIS Live is a reliable, well-designed, operationally robust API that provides a real-time view of BGP updates. In this article, the team from Code BGP talk through the RIS Live features that have helped them build a platform capable of detecting and resolving BGP issues in seconds

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The Joy of TXT

The Joy of TXT

Peter Lowe

10 min read

TXT records are perhaps the most flexible type of DNS records available - but have you ever wondered how they’re really used? To see if we can answer this, the TXT records of 1 million domains are examined to see if there’s any rhyme or reason as to how people employ this quirky, open-ended record …

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The Resilience of the Internet in Ukraine - One Year On

The Resilience of the Internet in Ukraine - One Year On

Emile Aben

17 min read

In our earlier analysis of Ukraine back in March 2022, we looked at factors that contributed to the resilience of the country's Internet since the outbreak of the war. A little over a year on, we draw on data from RIPE Atlas and RIPE RIS to investigate what has changed.

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The Human Factor in the Geopolitics of the Internet

The Human Factor in the Geopolitics of the Internet

LOUIS PETINIAUD

20 min read

The Internet is a network of networks administered, controlled and shaped by humans. As such, it is as much affected by power relationships across the public and private actors as it, in turn, affects them. In this article, the team from GEODE explores the complex relations between the technical an…

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Intercept and Inject: DNS Response Manipulation in the Wild

Intercept and Inject: DNS Response Manipulation in the Wild

Yevheniya Nosyk

6 min read

In November 2021, Internet users from Mexico lost access to whatsapp.net and facebook.com. By the time the event was reported, the underlying problem had already gone unnoticed for quite some time. Here, we present key takeaways from our analysis of the event - carried out with RIPE Atlas - and we …

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Observations on RIPE Atlas API "Anti-Patterns"

Observations on RIPE Atlas API "Anti-Patterns"

Robert Kisteleki

6 min read

The RIPE Atlas APIs receive millions of requests each day - which is in general good news! However, we also see some strange or sub-optimal client behaviour. Read on for a description of some of these cases and our suggestions on how improve the use the APIs.

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