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6to4 - Why is it so Bad?
6to4 - Why is it so Bad?
Emile Aben — Mar 21, 2011 12:15 PM

In a previous article we measured that a large percentage of 6to4 connections fail. In this article we show our attempts to find out why these connections fail.

New and Improved RIPE Registry Global Resource Service
Paul Palse — Mar 21, 2011 10:30 AM

We have redesigned and improved the way we mirror other databases. We now have a method of translating the operational data from other registries (for instance from other Regional Internet Registries or the RADb) into the RIPE Database structure.

Ensuring Registry Data Quality
Ensuring Registry Data Quality
Xavier Le Bris — Mar 08, 2011 12:25 PM

In order to ensure accurate and up to date registration data, the RIPE NCC started the Registry Data Quality project in 2009. The article below describes this activity and the problems we found and how we fixed them.

Network Complexity and How to Deal with it
Network Complexity and How to Deal with it
Michael Behringer — Mar 01, 2011 11:10 AM

This article, prompted by a panel discussion at the RIPE 61 Meeting, describes the most significant implications of network complexity and suggests ways to deal with it. This is a topic that requires more work and a lot of input from network operators. We hope you’ll work with us to advance this subject.

Caidagram: Visualising Geographically Annotated Internet Measurements
Caidagram: Visualising Geographically Annotated Internet Measurements
Claudio Squarcella — Feb 28, 2011 10:45 AM

Caidagram is a tool developed at CAIDA (the Cooperative Association for Internet Data Analysis). It allows the user to visualise geographically-based measurements about the Internet, focusing on trends and variations over time.

RIPEstat Live Demo #2
Mirjam Kühne — Feb 22, 2011 01:55 PM

This article summarises the second RIPEstat demo session that took place today, 22 February 2011.

First Impressions of Pollution in Two RIPE NCC Darknets
First Impressions of Pollution in Two RIPE NCC Darknets
Manish Karir — Feb 21, 2011 09:40 AM

We partnered with several Regional Internet Registries (RIRs), including the RIPE NCC, to examine what traffic is going to unallocated IP address ranges. In this particular case, we looked at traffic going to 5/8 and 37/8.

Members and Number Resources, One Year Later
Rene Wilhelm — Feb 17, 2011 04:20 PM

Last year, in a series of two articles, we presented statistics on the number of RIPE NCC members and the resources distributed to our members. With twelve months passed, we revisit the topic and look at how things evolved in 2010.

Three Case Studies on the Egyptian Disconnection
Claudio Squarcella — Feb 15, 2011 09:30 AM

Roma Tre University presents three analyses related to the recent events in Egypt, proving interesting behavior in relation to the observed disconnection. We use tools like BGPlay and iBGPlay, developed for the visualisation of BGP dynamics.

The Shape of a BGP Update
The Shape of a BGP Update
Vasco Asturiano — Feb 14, 2011 04:00 PM

What happens to BGP traffic when an announcement or withdrawal of an address prefix propagates through the Internet? See below some interesting graphs and observations.

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