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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.
• 6 min read
A record number of IPv4 addresses were transferred between LIRs in the RIPE NCC service region in 2017. However, 16 of the largest transfers, amounting to 78% of the total transferred address space, were really about the administrative management of resources between related business units. In term…
• 11 min read
HTTP measurements from RIPE Atlas probes are only possible towards RIPE Atlas anchors. However, when it comes to measuring the connectivity and latency of web servers on the network level, an alternative exists, which we call TCP Ping: a traceroute with special options that mimic the TCP handshake …
• 12 min read
With only a few months left until the fifth anniversary of RIPE NCC reaching the last unallocated /8 of IPv4 space, we look at developments in transfers in, to and from the RIPE NCC service region.
• 11 min read
As the RIPE NCC turns 25 years old, we look back at the historic membership growth and distribution of Internet number resources.
• 5 min read
In 2010, we introduced IPv6 RIPEness to recognise Local Internet Registries (LIRs) in the RIPE NCC service region that had begun deploying IPv6. Seven years later, we looked at how the IPv6 RIPEness level of the RIPE NCC membership evolved over time.
• 11 min read
Six months have passed since we last reported on the status of RIPE Atlas probe connections. Time for an update.
• 8 min read
On 28 December 2016, about 90 days before its 25th anniversary, the RIPE NCC reached the milestone of serving 15,000 active Local Internet Registries (LIRs). In this article we look at trends observed in the membership in the last few years. We also assess the remaining lifetime of the last bit of…
• 9 min read
IP address transfers have the potential to create more entries in the routing table for the same amount of address space. We analyse the net effect that four years of IPv4 transfers in the RIPE NCC service region have had on routing table growth and compare this to growth for allocations from which…
• 16 min read
We take another, more detailed look at probe lifetimes and the dynamics of probes connecting and disconnecting from the RIPE Atlas infrastructure to try to understand how to keep the network growing in the long term.
