Based in Amsterdam, NL
• 6 min read
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.
Based in Arlington, VA
• 3 min read
In the routing graphs produced by the RIPE REX tool, we can get a different visualization of Egyptian networks falling off of the Internet, and observe some interesting phenomena.
Former Software Engineer at the RIPE NCC More
• 1 min read
We have been using the prototype RIPEstat toolbox to analyse what happened to the Internet in Egypt.
• 4 min read
After 3 updates and a lot of progress on IPv6 in general, it is time to think about the next version of the IPv6 CPE survey. With an increased deployment of IPv6, we are seeking a way to make it easier for you to provide feedback and to present the data in a more structured way.
Based in Amsterdam, The Netherlands
I wrote the articles collected here during my time as community builder of the RIPE NCC and the maintainer and editor of RIPE Labs. I have since taken on a new role serving as the Chair of the RIPE Community. You can reach my new profile via the website link … More
• 13 min read
Based on new information we received since the last publication, we updated the IPv6 CPE matrix below. Please also note a call for help. We are preparing a detailed survey to gather more user feedback and would like you participate in this survey.
• 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…
• 2 min read
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.
Rene Wilhelm is a senior research engineer in the R&D department at the RIPE NCC. Coming from a background in particle physics, Rene joined the RIPE NCC in 1996. His interests are in data analysis, routing, Internet measurements and visualisation. More
• 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…
Based in Amsterdam, NL
I'm a system architect/research coordinator at the RIPE NCC, where I work in the science group. I'm a chemist by training, but have been working since 1998 on Internet related things, as a sysadmin, security consultant, web developer and researcher. I am interested in technology changes (like IPv6 deployment), Internet … More
• 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.
Based in Amsterdam, The Netherlands
I wrote the articles collected here during my time as community builder of the RIPE NCC and the maintainer and editor of RIPE Labs. I have since taken on a new role serving as the Chair of the RIPE Community. You can reach my new profile via the website link … More
• 2 min read
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 spac…
