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RIPE NCC Hostcount
Mark Dranse — Jan 04, 2011 02:30 PM

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 intend to stop doing the Hostcount as of January 2011.

ASN Ranking Correlations Between Spam Blocklists
John S. Quarterman — Dec 23, 2010 10:10 AM

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.

Routing Certification Beacons
Mark Dranse — Dec 21, 2010 10:02 AM

In January 2011, the RIPE NCC will announce the production launch of the resource certification system. We made some extensions to the BGP beacons which we provide as a part of the Routing Information Service to assist network operators.

Interesting Graph - How Accurate is the RIPE Routing Registry?
Rene Wilhelm — Dec 20, 2010 05:45 PM

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 objects match the prefixes announced in the BGP routing tables?

How Does the Internet Industry Compare?
Tom Vest — Dec 09, 2010 09:15 AM

Second in a series of articles about the structure of the ISP industry within the RIPE NCC service region. This time we try to identify criteria that make other economic sectors comparable to our own industry. We then test our assumptions by exploring a very simple comparison to the global automotive manufacturing sector.

TC Console - New Tool Highlights Malicious Activity on your Network
Mirjam Kühne — Dec 08, 2010 04:17 PM

Imagine a tool designed to show what's happening on your network in near real time. TC Console is a tool that allows you to do that, but with a crucial new innovation: it integrates Team Cymru's unique insight into malicious activity on the Internet.

6to4 - How Bad is it Really?
Emile Aben — Dec 01, 2010 12:10 PM

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.

RIPE Atlas Now on Five Continents
Daniel Karrenberg — Nov 30, 2010 05:05 PM

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 the end of 2010. Probe hosts can win an iPad by keeping their probes up during December.

Interesting Graph - How Complete is the RIPE Routing Registry
Mirjam Kühne — Nov 22, 2010 01:05 PM

It is often claimed that the Internet Routing Registry is not accurate and complete enough. Is this really the case? In this article we are looking at how many organisations that receive an Autonomous System Number from the RIPE NCC use the RIPE Routing Registry.

Returning Unannounced Legacy IPv4 Address Space
Mirjam Kühne — Nov 17, 2010 09:30 AM

In the early days of the Internet, many organisations received very large amounts of address space. Some of it has not been used and is not visible on the Internet. As the RIPE NCC's pool of available IPv4 address space nears depletion, we are actively encouraging holders of unused unannounced space to return it.

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