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

Alan Shackelford ashackel at jhmi.edu
Wed Aug 21 19:24:04 UTC 2013

And furthermore, it is my understanding that in RRL no queries are ever
discarded. Only the response is throttled.



Alan V. Shackelford                             Senior Systems Software

The Johns Hopkins University and Johns Hopkins Medical Institutions

Baltimore, Maryland USA           <mailto:ashackel at jhmi.edu>
ashackel at jhmi.edu          410-735-4773




From: dns-operations-bounces at lists.dns-oarc.net
[mailto:dns-operations-bounces at lists.dns-oarc.net] On Behalf Of Paul Vixie
Sent: Wednesday, August 21, 2013 12:43 PM
To: Vernon Schryver
Cc: dns-operations at lists.dns-oarc.net
Subject: Re: [dns-operations] Geoff Huston on DNS-over-TCP-only study.


Vernon Schryver wrote: 

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 wording did not leap out at me at the time, but, is factually wrong.
RRL is on the server side not the resolver side.


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