Measurements and Statistics

Public RIPEstat Demo Session Etiquette

Mirjam Kühne

• 20 Jan 2011

• 2 min read

When joining the monthly public RIPEstat demo sessions, please note the following points of etiquette. This will make communication via webex easier for all participants.

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RIPE Atlas - the iPad Drawing

Emile Aben

• 14 Jan 2011

• 4 min read

This article is about the lottery of an iPad for people hosting RIPE Atlas probes. As an extra motivator for people to keep their probes up as much as possible, the lottery drawing is weighted based on probe-uptime.

atlas

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1

GRS Sources and the RIPE Database API

Paul Palse

• 11 Jan 2011

• 7 min read

A while ago we announced the new Global Resource Service (GRS) for the RIPE Database. It allows you to query other Regional Internet Registry (RIR) databases and Routing Registry data using the RIPE Database interface. In this article we describe this service some more and show some examples.

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5

RIPE NCC Hostcount

Mark Dranse

• 4 Jan 2011

• 4 min read

For 20 years, the RIPE NCC counted the number of hosts in its service region. The Internet has grown dramatically since then and there are various ways to measure that growth. The article below describes the history of the Hostcount, the challenges we faced over the years and the reasons why we int…

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ASN Ranking Correlations Between Spam Blocklists

John S. Quarterman

• 23 Dec 2010

• 22 min read

Comparing ASN rankings by spam volume from two different data sources, CBL and PSBL (with a side trip to the University of Texas Computer Science Department), indicates there is enough correlation to have confidence in the rankings.

measurements

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Interesting Graph - How Accurate is the RIPE Routing Registry?

Rene Wilhelm

• 20 Dec 2010

• 5 min read

Last month we published a graph that shows how complete the RIPE Routing Registry really is. How many of the organisations that receive an Autonomous System Number (ASN) from the RIPE NCC use the RIPE Routing Registry to register their route objects. The results were encouraging. But do these route…

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6to4 - How Bad is it Really?

Emile Aben

• 1 Dec 2010

• 6 min read

At the recent RIPE 61 meeting in Rome and at earlier meetings, we heard that connectivity over 6to4 is not very dependable, which hampers IPv6 deployment. I wondered how bad it really is and started measuring it. This article describes what I measured and shows the results. Spoiler: It's pretty bad.

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17

RIPE Atlas Now on Five Continents

Daniel Karrenberg

• 30 Nov 2010

• 3 min read

RIPE Atlas probes are now active on five continents. After the big run on the measurement probes during the recent RIPE Meeting, the deployment is a little slower than expected; but there is a steady stream of probes coming online. We expect to make our initial goal of 300 active probes well before…

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3

LIR Portal Migration: Main Improvements

Mirjam Kühne

• 16 Nov 2010

• 4 min read

The LIR Portal is one of the most important communication tools between the RIPE NCC and its members. It has been migrated to a new system without any service interruption or significant changes for the users.

tools

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Internet Reputation Experiments for Better Security

John S. Quarterman

• 8 Nov 2010

• 19 min read

Last week we published a proposal for new organizational layers in order to be more effective in fighting spam. In this article we describe planned experiments to determine the effects of outbound spam reputation on Internet organizations.

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