Re: [DNSOP] Fwd: New Version Notification for draft-wkumari-dnsop-ttl-stretching-00.txt

Mukund,

While I agree with you, Joel has the right guidance on this; but also
knowing the authors fairly well,
I feel they would not send us down a road that will box the work into a
corner.

On Fri, Jan 6, 2017 at 1:25 PM, Mukund Sivaraman <muks@isc.org> wrote:

> On Fri, Jan 06, 2017 at 09:47:41AM -0800, joel jaeggli wrote:
> > On 1/6/17 9:25 AM, Mukund Sivaraman wrote:
> > > On Fri, Jan 06, 2017 at 01:48:59AM +0000, Warren Kumari wrote:
> > >>> (2) In a feature implemented for Unbound:
> > >>>
> > >>> - Unbound first checks cache
> > >>>
> > >>> - If a stale answer is found, its TTL is set to 0, and the cache
> entry
> > >>>   is served
> > >>>
> > >>> - If a stale answer is found, Unbound starts something similar to
> > >>>   prefetch/HAMMER.
> > >>>
> > >>>> NOTE: I believe that there may be (non-Google) IP associated with
> > >>>> this. A lawyer will be filing the IPR disclosure later today (time
> > >>>> zone differences, etc).
> > >>> The two approaches are somewhat different, and so at least one of
> them
> > >>> may not be covered by this patent.
> > >>>
> > >> Yup. The IPR disclose was about IPR belonging to Xerocole. Xerocole
> was
> > >> acquired by Akamai in March 2015. I believe that David will discuss
> the IPR
> > >> with his employer.
> > > Please explore if this patent can be circumvented without affecting the
> > > goal of the draft, so that it does not apply. It would be better than
> > > licensing it under some legal terms.
> > IMHO this can be better expressed as a preference for unencumbered
> > technology.
> >
> > the working group should not as far as I am concerned get buried in how
> > precisely to achieve that.
>
> There's nothing wrong in exploring unencumbered technology. It isn't too
> much of a diversion to check if the patent can be avoided.
>
> IETF has had several drafts that avoid patented methods by documenting
> something else (compress vs. deflate/gzip, gif vs png, MPEG video vs
> vpx, MPEG audio vs vorbis, opus, etc.) that usually turned out to be
> better.
>
> One of the authors of this draft works at the company that owns the
> patent. As he is introducing this draft and implementations such as mine
> are concerned about the use of this patent, it would be good to attempt
> to discover if the patented method can be avoided.
>
>                 Mukund
>
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