Re: [Dots] Alexey Melnikov's Discuss on draft-ietf-dots-signal-channel-31: (with DISCUSS and COMMENT)

[Alexey Melnikov <[e-mail]>]

Hi,
Thank you for detailed replies. Quick answer to one of them:

On 2 May 2019, at 07:54, <[e-mail]> <[e-mail]> wrote:

>> 4) Later in the same section:
>> 
>>   If the request is missing a mandatory attribute, does not include
>>   'cuid' or 'mid' Uri-Path options, includes multiple 'scope'
>>   parameters, or contains invalid or unknown parameters, the DOTS
>>   server MUST reply with 4.00 (Bad Request).  DOTS agents can safely
>>   ignore comprehension-optional parameters they don't understand.
>> 
>> How can DOTS agents know which parameters are comprehension-optional?
> 
> [Med] This is done by looking at the key value:
> 
>      Key value for the parameter.  The key value MUST be an integer in
>      the 1-65535 range.  The key values of the comprehension-required
>      range (0x0001 - 0x3FFF) and of the comprehension-optional range
>      (0x8000 - 0xBFFF) are assigned by IETF Review (Section 4.8 of
>      [RFC8126]).  The key values of the comprehension-optional range
>      (0x4000 - 0x7FFF) are assigned by Specification Required
>      (Section 4.6 of [RFC8126]) and of the comprehension-optional range
>      (0xC000 - 0xFFFF) are reserved for Private Use (Section 4.1 of
>      [RFC8126]).

I suggest you either add the above text or a pointer to where this is discussed.

Best Regards,
Alexey