Re: [dnsext] Re: RFC 3484 section 6 rule 9 causing more operational problems

[Paul Vixie <vixie at isc.org>]

> > you'll see roundrobin and lifo, among others, in many caches including
> > stub caches.
> 
> Large numbers of sites have been depending on this behaviour for over 15
> years, so it was wrong of RFC 3484 to break it.

some number of vendors have depended on revenue from selling this feature
but i'd say that only a small number of sites ever saw any benefit from it.
we've been lifo'ing and round robin'ing dns data in caches and stubs for a
lot longer than 15 years, and the original dns rfc's said specifically that
rrset ordering was not guaranteed in the protocol, so anyone who depended
on it was getting screwed a long time before RFC 3484 came around.