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Active Measurements - Hosting a Probe

Daniel Karrenberg — Sep 27, 2010 03:45 PM

Why YOU may want to host a small probe to help with large scale active Internet measurements.

Tags: atlas, measurements » Read more



Tony McGregor — Sep 24, 2010 01:05 PM

This data is a set of active measurements (ping/traceroute) collected by the NLANR research group. The data consists of measurements in a mesh of up to 130 vantage points and the measurements ran between 1998 and 2006. This data is useful for longitudinal study of the Internet. The data available from the RIPE Data Repository is a remastered version of the original data that was available from the NLANR website.

Tags: datarepository, measurements » Read more


iPlane traceroute Dataset

Harsha V. Madhyastha — Sep 23, 2010 07:50 PM

This dataset contains traceroutes from PlanetLab nodes and traceroute servers that are done as part of the iPlane project at the University of Washington. This data starts 2006-06-23 and is updated daily. The data hosted on the Data Repository is a copy of the original data that is hosted at the University of Washington, but the historical logs are remastered so they contain only a single tarball per day. Additional data gathered by iPlane such as link latency and loss measurements as well as processed versions of the traceroutes are available at

Tags: datarepository, measurements » Read more


BGP Route Origin Validation - A follow-up

David Murray — Sep 22, 2010 12:00 AM

In July 2010 we looked at the effects of BGP route origin validation on mis-announcements and hijackings. In the meantime, we did some research based on comments and questions received by the community. The findings are described in this follow-up article.

Tags: statistics, routing » Read more


An Investigation with RIPE NCC Tools

Daniel Karrenberg — Sep 20, 2010 10:00 AM

After a short service outage, I was interested to find out what happened. Please find below a case study for using public RIPE NCC Tools for this purpose.

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IPv6 CPE Survey - Updated (September 2010)

Mirjam Kühne — Sep 15, 2010 01:25 PM

Based on new information we received since the last publication, we updated the IPv6 CPE matrix. See the new version below.

Tags: routing, tools, cpe, ipv6 » Read more


RIPE61 Meeting Plan in Google Calendar

Henk Uijterwaal — Sep 15, 2010 10:00 AM

At the last RIPE meetings, we provided the meeting schedule in Google Calendar. We now offer the same service for the upcoming RIPE 61 meeting in Rome.

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Interesting Graphs - Nine Years of RIPE Database Objects

Robert Kisteleki — Sep 13, 2010 02:59 PM

Let's take a look at how the number of different RIPE DB objects changed in the last nine years. Many of the graphs are easy to understand, but some of them are not trivial.

Tags: statistics, database » Read more


Phase out of Reply-Size Tester

Wolfgang Nagele — Sep 07, 2010 10:00 AM

Back in December 2009 we released a tool with which you can test your DNS resolver for possible issues with a DNSSEC signed root zone. Now that the root zone has been signed in production since 15 July 2010 we will stop this service on Monday, 11 October 2010.

Tags: root-servers, dnssec, measurements, dns, tools » Read more


DNS Clients Do Request DNSSEC Today

Daniel Karrenberg — Sep 06, 2010 11:05 AM

After the DNS root zone was finally signed and a number of TLDs began signing their zones, we were curious to see how many clients actually request DNSSEC information. First we looked at our server that provides secondary service to several ccTLDs.

Tags: security, statistics, dnssec, dns » Read more

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