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Re: [Anima] last minute changes to BRSKI to do endpoint discovery

Brian E Carpenter <brian.e.carpenter@gmail.com> Mon, 27 July 2020 20:26 UTC

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To: "Fries, Steffen" <steffen.fries@siemens.com>, Michael Richardson <mcr+ietf@sandelman.ca>, "Brockhaus, Hendrik" <hendrik.brockhaus@siemens.com>, "anima@ietf.org" <anima@ietf.org>, max pritikin <pritikin@cisco.com>, Eliot Lear <lear@cisco.com>
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From: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Date: Tue, 28 Jul 2020 08:26:45 +1200
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Subject: Re: [Anima] last minute changes to BRSKI to do endpoint discovery
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On 27-Jul-20 17:41, Fries, Steffen wrote:
> Hi Michael,
> 
>> From: Michael Richardson <mcr+ietf@sandelman.ca>
>>     > I would appreciate to use /.well-known/brski for the endpoints
>>     > specified in BRSKI and use /.well-known/est for those specified in
>>     > RFC7030.
>>     > This offers more flexibility for future extensions like BSKI-AE.
>>
>> Such a change would be large to BRSKI.
>>
>> Brian suggests making this an update.
>> But, I think it would cause market confusion if we published an RFC with
>> /.well-known/est/requestvoucher, and then said, "no sorry, no we meant
>> /.well-known/brski/requestvoucher"

I meant that the update would say
"please *add* /.well-known/brski/requestvoucher"

An extension, not an amendment (draft-kuehlewind-update-tag).

   Brian

>>
>> Would there be pledge implementations that would try one and then the
>> other?
>> I will say that I'm *NOT* keen on including the Resource Link GET, but I can
>> tolerate it.
> The intention was not to include the discovery mechanism right away into BRSKI. It was rather the question to rename the BRSKI defined endpoints to /.well-known/brski to underline, that the voucher exchange is independent from the chosen enrollment protocol. The discovery should be done in BRSKI-AE, which should update the base specification then. I understand, that we should not state /.well-known/est and the immediately update it afterwards to /.well-known/brski . That would look awkward. If we just rename the endpoints in BRSKI, would that cause such a large change? 
> 
> Best regards
> Steffen
> 
> 
>>
>>
>> I think that we'd need to:
>>   1) blessing of our AD.
>>   2) pull document out of RFC-editor queue.
>>   3) revise it, do a WGLC on revision.
>>   4) get AD to put it back in queue.
>>
>> The ROLL WG did this for a document last year when we realized that a new
>> document obsoleted some of the recommendations.  It took longer than
>> planned, but that was partly because the other document had to settle a bit.
>> I think we could do this in the time for the 2nd WGLC and about four days.
>>
>>
>>
>> --
>> Michael Richardson <mcr+IETF@sandelman.ca>ca>, Sandelman Software Works
>> -= IPv6 IoT consulting =-
>>
>>
> 
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