Re: Spin bit decision

[<[e-mail]>]

On 10/02/18 12:59, Lars Eggert wrote:
>  >> May I ask why this question is key ? Are you envisioning a situation where
>> v1 would allow for the spin bit as a negotiated option instead of just
>> requiring it ? Added complexity and inferior outcome: what is the
>> motivation ?
> 
> The WG hasn't really discussed yet what requirements level any inclusion of
> the spin bit into the main spec would have, and there could obviously be
> different levels of requirement for clients and servers.
> 
> But irrespective of what - if anything - the spec chooses to say, deployed
> implementations can obviously choose to do whatever they wish, since the spin
> bit is not affecting interoperability at all.

Well, if the spec says that en endpoint MUST copy of flip a bit, an implementor 
would be fairly ill-advised not do comply. And nothing prevents from adding a 
"does it spin ?" criterion to the interop test suite.

Clearly you now have this degree of freedom: weaken that MUST into a MAY or a 
SHOULD, separately for each role. But for what purpose ?


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