[dns-operations] Geoff Huston on DNS-over-TCP-only study.

[Randy Bush]

> http://www.circleid.com/posts/20130820_a_question_of_dns_protocols
> disappointed me with this characterization of RRL:
> 
>     There is a conversation thread that says that resolvers should
>     implement response rate limiting (RRL), and silently discard
>     repetitive queries that exceed some locally configured threshold.
> 
> That ignores the "slip" parameter.  That is irritating given the
> relevant implications of slip=2 as the default in one RRL implementation
> and the popular alternative of slip=1.
> 
> I was also disappointing that it failed to mention the crushing
> costs of DNS/TCP.

jeezus!  it was a *measurement* study.  that it did not parade your or
someone elses banner is irrelevant.

randy