Measurements and Statistics

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When the Internet Goes Down: Tracking Edge Outages at Scale

When the Internet Goes Down: Tracking Edge Outages at Scale

Philipp Richter

8 min read

Uninterrupted availability of the Internet has become increasingly critical these days, not just for end users but also for service providers who need to meet Service Level Agreements (SLAs). Yet, outages affecting end-user connectivity are widespread, whether they be unintentional fibre cuts, natu…

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Multi-level MDA-Lite Paris Traceroute

Multi-level MDA-Lite Paris Traceroute

8 min read

On-path load balancing can send traffic across many potential paths, which typical traceroute usage will not fully capture. We are working on algorithms for a more complete traceroute across load-balanced paths, and we are interested in deployment on RIPE Atlas. We'd like your feedback.

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IMC 2018 Liveblog

IMC 2018 Liveblog

Gergana Petrova

16 min read

The Internet Measurement Conference (IMC) is an annual conference focusing on Internet measurement and analysis. The 17th edition is taking place from 31 October to 2 November 2018 in Boston. RIPE NCC staff at the event will be live blogging key moments. See this page for regular updates on the iss…

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RIOT in Amsterdam

RIOT in Amsterdam

Martine Sophie Lenders

14 min read

The RIOT Summit is the yearly get-together of the community around the RIOT operating system for the Internet of Things (IoT). It aims at bringing together RIOTers, beginners and experts, as well as people interested in the IoT in general. We also welcome decision makers who plan to deploy RIOT in …

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Internet Atlas - Tools for Digital Literacy

Internet Atlas - Tools for Digital Literacy

Andrej Petrovski

5 min read

Based on existing studies and research about the digital environment in Serbia, its legal and technical features, usage and habits among Internet users, the SHARE Foundation aims to produce tools and materials designed to inform, educate and encourage project target groups understand Internet infra…

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Clusters in the Expanse: Understanding and Unbiasing IPv6 Hitlists

Clusters in the Expanse: Understanding and Unbiasing IPv6 Hitlists

Oliver Gasser

7 min read

Network measurements are an important tool in understanding the Internet. Due to the expanse of the IPv6 address space, exhaustive scans in IPv4 are not possible for IPv6. The best practice when conducting IPv6 measurements is to use so called IPv6 hitlists.

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Measuring Anycast DNS Services Using RIPE Atlas

Measuring Anycast DNS Services Using RIPE Atlas

Kenneth Finnegan

12 min read

A step-by-step guide to how to use the RIPE Atlas measurements infrastructure to characterize the world-wide performance of Anycast DNS services.

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Measuring the KSK Roll

Measuring the KSK Roll

Geoff Huston

23 min read

When viewed as a network infrastructure, looks can be very deceiving when looking at the DNS. It appears to be a simple collection of resolvers and servers. Clients pass their DNS name resolution queries to resolvers, who then identify and ask an appropriate authoritative name server to resolve …

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Upstream Visibility: Monitor the Visibility of your Prefix

Upstream Visibility: Monitor the Visibility of your Prefix

Massimo Candela

6 min read

Upstream Visibility is the new tool produced by the Computer Network Research Group of Roma Tre in collaboration with the RIPE NCC. It is a web application which proposes a concise way of visualising interdomain routing data of a specified prefix.

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Persistent DNS Connections for Reliability and Performance

Persistent DNS Connections for Reliability and Performance

Baptiste Jonglez

10 min read

For decades, the Domain Name System (DNS) has relied on UDP as its transport protocol of choice, mostly because of its simplicity. New transports such as DNS-over-TLS and DNS-over-HTTPS are now gaining popularity: they offer increased privacy while preventing the use of the DNS as a DDoS attack vec…

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