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Re-Counting DNSSEC
Re-Counting DNSSEC
Geoff Huston — 23 Oct 2012

This is a followup article to "Counting DNSSEC" that reflects some further examination of the collected data. This time I'd like to describe some additional thoughts about the experiment, and some revised results in our efforts to count just how much DNSSEC is being used out there.… Read more

Comparing TCP and UDP Response Times of DNS Root Servers
Comparing TCP and UDP Response Times of DNS Root Servers
Bert Wijnen — 17 Oct 2012

We did some measurements on the round-trip (RT) values of DNS queries for SOA (Start of Authority) records from our RIPE Atlas probes, over both UDP and TCP. We plotted the TCP/UDP ratios on graphs, and found that, as expected, for the majority of the measurements, it is around 2. However, we also observed other values for some servers (including K-root). Upon investigation, we found that the K-root servers were configured to allow at most 10 concurrent TCP connections. This caused several much bigger RT values than on other root servers. When we changed the configuration to allow for 100 concurrent TCP connections, K-root showed ratios similar to the other root servers.… Read more

Tags: atlas dns
IPv6 RIPEness - More Stars
IPv6 RIPEness - More Stars
Emile Aben — 26 Sep 2012

IPv6 RIPEness helped in creating awareness and got people into action with regards to their first steps towards deploying IPv6 in the RIPE NCC service region. Up until now IPv6 RIPEness didn't measure actual IPv6 deployment. In this article we propose a measure (a "5th star"), which attempts to measure actual IPv6 deployment at the edge.… Read more

The 2012 IPv6 CPE Survey
The 2012 IPv6 CPE Survey
Marco Hogewoning — 26 Sep 2012

In response to a huge amount of demand, the RIPE NCC has conducted another survey on the level of IPv6 support for various vendor's Customer Premises Equipment (CPE). The questions in the 2012 focused around the most common access technologies. The results have been published using a simple colour coded matrix, listing which features are present, on the roadmap or not available. We've also developed a new interactive user interface so you're now able to filter the results and compare different models. This article will highlight some of the 2012 findings as well as some comparison to previous editions of the survey.… Read more

Tags: cpe ipv6