Re: [netmod] A review of draft-ietf-netmod-node-tags

[Qin Wu <[e-mail]>]

Hi, Adrian:
>-----邮件原件-----
>发件人: Adrian Farrel [mailto:[e-mail]] 
>发送时间: 2022年1月19日 22:29
>收件人: Qin Wu <[e-mail]>; [e-mail]
>抄送: [e-mail]
>主题: RE: A review of draft-ietf-netmod-node-tags

>Hi again, Qin.

>Just closing on the one remaining point.

>Adrian

>>>There is some contradiction between and within sections 4.3 and 4.4
>>>
>>>1. If a user tag is defined as any tag that has the prefix "user:"
>>>   how can you then say that users are not required to use the "user:"
>>>   prefix? That would mean that a user tag is any tag that does or
>>>   does not have the prefix "user:"
>> [Qin Wu] Correct.
>>>2. If any tag not starting with "ietf:", "vendor:", or "user:" is 
>>>   reserved, how can a user create a tag that doesn't start with
>>>   "user:"?
>> [Qin Wu] :I understand your concern, but my understanding on reserved 
>> tag,
>upon such reserved tag is allocated, it should start with "xxx:",
>>         Therefore such reserved tag can not be seen as user tag. It 
>> seems
>unlikely there is contraction if my understanding is correct.
>>         Correct me if I am wrong.
>>
>> [AF] Ah, I missed the point!

>>A user tag is:
>>- any tag with the prefix "user" 
>>or
>>- any tag that has no prefix at all

>>Thus, and for the avoidance of confusion, the colon (":") when it 
>>appears
>for the first time, is always assumed to be the separator between a prefix and the rest of the tag. And so, when a user tag does not have a prefix, it MUST NOT contain a colon. 
> [Qin Wu] Your understanding is correct, if you think I should add some text to make this more clear, I am happy to do so.

>Maybe just a sentence. I know that my confusion is not indicative of the state of the average reader, but maybe there are others who would be just as confused.

[Qin Wu] Okay, I will add a sentence in section 3.4. Thank for all these good suggestions.