Re: [Ntp] draft-schiff-ntp-chronos-03

Sure, I'll add its value on the next draft.

Thanks,
Neta

On Thu, Nov 21, 2019 at 11:46 AM Erik Kline <ek.ietf@gmail.com> wrote:

> Neta,
>
> Thanks for the corrected link.
>
> I see that the value of w you reference is in the paper; I think it might
> be of some benefit if it were also mentioned in the draft (or in an
> appendix section in the draft).  Perhaps others feel differently.
>
> Thanks again,
> -ek
>
> On Thu, Nov 21, 2019 at 5:30 PM Neta R S <neta.r.schiff@gmail.com> wrote:
>
>> Hi,
>>
>> I am not sure why the link to the paper doesn't work, I'll fix it in the
>> next draft.
>> However, the proper link is:
>>
>> https://www.ndss-symposium.org/wp-content/uploads/2018/02/ndss2018_02A-2_Deutsch_paper.pdf
>>
>> Regarding the "w" parameter:
>> - It denotes an upper bound on the distance from the UTC of the local
>> time at any NTP server with an accurate clock (“truechimer”).
>> - We analyzed "w" value empirically in section 5.B, and set it to 25 ms,
>> such that over 83% of the servers (on average) are considered honest
>> servers.
>> - This value also used for the security analysis in section 4.B.
>>
>> Best,
>> Neta
>>
>> On Wed, Nov 20, 2019 at 1:29 PM Erik Kline <ek.ietf@gmail.com> wrote:
>>
>>> Just a note to say that, FWIW, I have read draft -03.  I found it
>>> relatively straightforward and comprehensible.
>>>
>>> For me, the link to the paper didn't work, though that might have been
>>> an artifact of the IETF network at the time I was trying.  Nevertheless, I
>>> was able to find the paper with some light searching, though I haven't had
>>> the chance to read it.
>>>
>>> If the paper provides, or the authors know of, any operational guidance
>>> on a value for w in "common practice", that might be useful to include
>>> somewhere in the document (apologies if I've missed it).
>>>
>>> -ek
>>> _______________________________________________
>>> ntp mailing list
>>> ntp@ietf.org
>>> https://www.ietf.org/mailman/listinfo/ntp
>>>
>>