Network Operations

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IPv6 on the March

IPv6 on the March

Mirjam Kühne

3 min read

Tony Smith from APNIC is looking at the increase in IPv6 deployment now ARIN depleted their free pool of IPv4 addresses.

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Looking at France-IX with RIPE Atlas and RIS

Looking at France-IX with RIPE Atlas and RIS

Emile Aben

8 min read

This article describes our recent collaborations with France-IX on collecting data plane and control plane Internet data with RIPE Atlas and the RIPE NCC's Routing Information Service (RIS).

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Mapping the Internet Infrastructure in Serbia

Mapping the Internet Infrastructure in Serbia

Andrej Petrovski

13 min read

Through empirical research, SHARE Foundation created a map of the Internet in Serbia and analysed the implications network structure could have on Internet filtering. By visualising and analysing the structure and topology of individual Internet Service Providers in Serbia, we tried to determine ho…

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Checking your Internet Connectivity with RIPE Atlas Anchors

Checking your Internet Connectivity with RIPE Atlas Anchors

Stéphane Bortzmeyer

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?

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

Emile Aben

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

Visualising DNS Issues with DNSMON

Massimo Candela

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?

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

Emile Aben

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

Is It Really Worth Peering at IXPs? A Comparative Study

roberto di lallo

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

Analysing the K-root Anycast Infrastructure

JH Kuipers

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

Delta-V Gets Take-off Speed

George Michaelson

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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