On Mon, Jul 24, 2023 at 06:26:46PM +0000, Wessels, Duane wrote:
> It was not our intention that “2” would be the only possible exponent in
> the backoff algorithm.  Would this slightly revised text be more
> agreeable?
> 
>    Resolvers SHOULD employ an exponential or linear backoff algorithm to
>    increase the amount of time for subsequent resolution failures.  For
>    example, the initial time for negatively caching a resolution failure
>    is set to 5 seconds.  The time is increased after each retry that
>    results in another resolution failure.  Consistent with [RFC2308],
>    resolution failures MUST NOT be cached for longer than 5 minutes.

That's definitely an improvement, yes.

-- 
Evan Hunt -- e...@isc.org
Internet Systems Consortium, Inc.

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