Moin! On 10 Nov 2023, at 13:33, Geoff Huston wrote:
> Here’s an analysis of measurement of issues with IPv6 and DNS resolvers from > a few years > ago...https://www.potaroo.net/presentations/2017-09-29-xtn-hdrs-dns.pdf > > I have not returned to this measurement for some years as there appeared to > be little interest in the results right up until now! > > If there is interest in this measurement work about the DNS, large responses > and IPv6 failure rates from the working group I’m sure it can be revived! That would be fantastic as we since that presentation had a DNS flag day ( http://www.dnsflagday.net/2020/ ) reducing the DNS buffer size to 1232 which should no longer make it fragment over IPv6 UDP. I would hope that by now at least most professionally run DNS resolvers would have implemented this. When I looked at your slide on the second more relevant experiment, with clueless delegation I found that the top 10 bad ASes doing something about this would eliminate the ~80% of the problem, so there could be some gains made talking to these people if they still appear in your testing now. So long -Ralf --- Ralf Weber Principal Architect, Carrier Division Akamai Technologies GmbH Parkring 20-22, 85748 Garching phone: +49.89.9400.6174 mobile: +49.151.22659325 Geschäftsführer: David Matthew McDonald Aitken, Justyna Kalina Jankowska Sitz der Gesellschaft: Garching Amtsgericht München HRB 129886 _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
