Measurements and Statistics

Detecting Network Outages with RIPE Atlas

Anant Shah

• 3 Aug 2017

• 7 min read

This post describes a technique to detect bursty TCP disconnections, and how it can be used on RIPE Atlas data to better detect outages in the Internet.

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Public Policy Demands Better Statistics

George Michaelson

• 21 Jul 2017

• 20 min read

This is a story about science and data and how we need to apply rigour if we want to use data to inform and influence policy decisions. It is also a story about HTTPS.

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Taking it to the Limit - Testing the Performance of R&E Networking

Mirjam Kühne

• 14 Jul 2017

• 6 min read

Please read this guest post by Mian Usman, Network Architect at GÉANT: One of the big questions often asked of R&E networking is why? Why, when commercial networks are so large, is there still a need for dedicated research networks? Surely organisations can simply buy commercial off-the-shelf netw…

0

BGP Even-More Specifics in 2017

Stephen Strowes

• 10 Jul 2017

• 8 min read

Since October 2014, we have been advertising two IPv4 /25s and two IPv4 /28s, to better understand how far they propagate across the network. In this article, we review how things have (or have not) changed over the years.

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Anchoring Measurements: Bringing Back the Balance

Alun Davies

• 5 Jul 2017

• 5 min read

Ever since the RIPE Atlas anchor network went online, the RIPE NCC has been scheduling anchoring measurements to provide a clear overview of the health of the network. Over time, however, a certain imbalance has crept into such measurements. Here's a look at the problem along with our solution.

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Update: First Five Sponsored RIPE Atlas Anchors

Next Five Sponsored RIPE Atlas Anchors

Alun Davies

• 4 Jul 2017

• 3 min read

The second phase of the RIPE NCC’s campaign to sponsor 15 RIPE Atlas anchors has been completed, with another five anchor hosts selected for sponsorship. We want to tell you about the new anchor hosts and also take a look at some related developments here at the RIPE NCC.

atlas

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Talking Traffic at TMA 2017

Stephen Strowes

• 30 Jun 2017

• 7 min read

Last week, the Network Traffic, Measurement and Analysis Conference (TMA) took place in Maynooth, Ireland. A full week was scheduled, featuring a PhD school across Monday and Tuesday, the Mobile Network Measurements (MNM) workshop on Tuesday, and the main conference from Wednesday to Friday. We wer…

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BGP Meets Cat

Christian Teuschel

• 26 Jun 2017

• 4 min read

As controversial as the title sounds much attention was drawn last weekend to RIPEstat when Job Snijders (@JobSnijders) revealed his creation of a Nyan Cat painted by smartly managing the visibility of 175 /24 prefixes.

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Recursives in the Wild: Engineering Authoritative DNS Servers

Moritz Müller

• 26 Jun 2017

• 5 min read

By analysing how resolvers select authoritative name servers in the wild we investigated how DNS operators are able to reduce DNS response times.

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Why is the Internet so Slow?

Mirjam Kühne

• 23 Jun 2017

• 4 min read

Ilker Nadi Bozkurt and his colleagues found that the Internet is much slower than it could be. They wonder where this slowdown comes from and what can be done about it.

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