Network Operations

Checking your Internet Connectivity with RIPE Atlas Anchors

Stéphane Bortzmeyer

• 14 Sep 2015

• 7 min read

If you monitor your external Internet connectivity, you may wonder which machine is the best to ping. Hesitate no more - you can use RIPE Atlas anchors as landmarks.

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Has the Routability of Longer-than-/24 Prefixes Changed?

Emile Aben

• 11 Sep 2015

• 6 min read

In October 2014 we started announcing a few longer-than-/24 prefixes and determined they were not very visible according to the Routing Information Service (RIS) and RIPE Atlas measurements. Now, almost a year later, we revisit this.

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Visualising DNS Issues with DNSMON

Massimo Candela

• 4 Sep 2015

• 4 min read

This article is a summary of an academic paper, Visualization and Monitoring for the Identification and Analysis of DNS Issues, that was presented at the Tenth International Conference on Internet Monitoring and Protection in Brussels in June 2015.

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The Internet in North Korea - Hanging by a Single Thread?

Emile Aben

• 26 Aug 2015

• 13 min read

North Korea is one of the most secluded countries in the world, but it is nonetheless connected to the Internet. We investigate North Korea's Internet connectivity in light of recent outages and discuss the fragile nature of its setup.

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Is It Really Worth Peering at IXPs? A Comparative Study

roberto di lallo

• 3 Aug 2015

• 15 min read

We investigated the role IXPs play in the Italian Internet ecosystem. Do peerings at IXPs have a positive effect on key performance indicators such as latency, hop count, packet loss and jitter? Do they reduce the number of out-of-country ISPs traversed by traffic between users located in Italy and…

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Analysing the K-root Anycast Infrastructure

JH Kuipers

• 27 Jul 2015

• 4 min read

Anycast is used by most of the DNS root-servers and other services like Cloudflare. It provides localisation and scaling benefits to clients using the anycasted service. An anycast service uses one IP for several instances of the same service. The routing system is then responsible for directing a …

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Delta-V Gets Take-off Speed

George Michaelson

• 16 Jul 2015

• 8 min read

The adoption of the RPKI system is growing rapidly. To make sure the system scales, we’ve developed a new protocol that should drastically improve fetch times for RPKI repositories. This article explains how.

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Visualisation of a New Node in LACTLD Anycast Service

Hugo Salgado

• 10 Jul 2015

• 6 min read

Despite the few RIPE Atlas probes available in Latin America, it is possible to obtain interesting measurements about changes in network architecture.

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Improving RIPE Atlas Coverage - Which Networks Are Missing?

Emile Aben

• 2 Jul 2015

• 11 min read

In this article we compare RIPE Atlas deployment against user population estimates provided by APNIC to see which eyeball networks are missing out on RIPE Atlas probes.

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Enabling Data Compression in RIPE Atlas

Daniel Quinn

• 17 Jun 2015

• 3 min read

We’d like to enable gzip compression on all of RIPE Atlas' measurement API calls — but thanks to the BREACH vulnerability, doing so could mean that some enterprising individual with an obscene amount of time on their hands might be able read the contents of the responses. This means measurement res…

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