-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 13/09/13 12:45, valdis.kletni...@vt.edu wrote: > On Thu, 12 Sep 2013 14:03:44 -0600, Phil Fagan said: >> Everything else remaining equal...is there a standard or >> expectation for DNS reliability? >> >> 98% 99% 99.5% 99.9% 99.99% 99.999% >> >> Measured in queries completed vs. queries lost. >> >> Whats the consensus? > > Remember to factor in Duane Wessel's work that showed that > something like 98% of the DNS traffic at the root servers was > totally bogus? > > Maybe you need to factor in "broken queries not answered, and > offenders slapped around with a large trout"? Because if it's > busted requests you're sending towards the root, they're going to > count against your completed/lost ratio in a really bad way. > > Anybody know if people have cleaned up their collective acts since > Duane did that paper? >
Wearing a different hat, I had the chance to rerun that analysis with data from 2008 (original paper is from 2003) and the number were still around 98% http://www.caida.org/publications/presentations/2008/wide_castro_root_servers/wide_castro_root_servers.pdf Cheers, - -- Sebastian Castro DNS Specialist .nz Registry Services (New Zealand Domain Name Registry Limited) desk: +64 4 495 2337 mobile: +64 21 400535 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with undefined - http://www.enigmail.net/ iEYEARECAAYFAlI3bfYACgkQWyqRrHcQWTkagwCeOaShzFH1i8q9Y34/cybV6bUY qBYAn1A8JPgNJqH6mijUFN7+4ufybJqZ =X7UE -----END PGP SIGNATURE-----