[v6ops] Re: Correction: Re: Working group Last call: draft-ietf-v6ops-cpe-lan-pd

[Timothy Winters <[e-mail]>]

Hi Ted,

That was in a branch that neglected to merge.  Thanks for the reminder, I
posted it on -04.

https://datatracker.ietf.org/doc/html/draft-ietf-v6ops-cpe-lan-pd-04

LPD-7:
The IPv6 CE Router MUST provision IA_PD prefixes with a prefix-length of 64
unless configured to different prefix-length by the user. The prefix length
of 64 is used as that is the current prefix length supported by SLAAC.

~Tim

On Thu, Aug 8, 2024 at 2:15 PM Ted Lemon <[e-mail]> wrote:

> What happened to the updates we talked about earlier (e.g., MUST, and
> explaining what "by default" means)? :)
>
> I'm otherwise okay with this text though.
>
> On Thu, Aug 8, 2024 at 2:04 PM Timothy Winters <[e-mail]> wrote:
>
>> Hi Tim,
>>
>> I can get on board with that.
>>
>> OLD:
>>    LPD-7:  The IPv6 CE Router SHOULD by default provision IA_PD IA
>> prefixes with a prefix-length of 64.
>>
>> New:
>>    LPD-7:  The IPv6 CE Router SHOULD by default provision IA_PD
>> IA prefixes with a prefix-length of 64. The prefix length of 64 is
>>    used as that is the current prefix length supported by SLAAC.
>>
>> ~Tim
>>
>> On Thu, Aug 8, 2024 at 4:22 AM Tim Chown <[e-mail]> wrote:
>>
>>> Hi Tim,
>>>
>>>
>>>
>>> *From: *Timothy Winters <[e-mail]>
>>> *Date: *Wednesday, 7 August 2024 at 20:09
>>> *To: *Tim Chown <[e-mail]>
>>> *Cc: *Brian E Carpenter <[e-mail]>, Nick Buraglio <
>>> [e-mail]>, IPv6 Operations <[e-mail]>
>>> *Subject: *Re: [v6ops] Re: Correction: Re: Working group Last call:
>>> draft-ietf-v6ops-cpe-lan-pd
>>>
>>> Hi Tim,
>>>
>>>
>>>
>>>
>>>
>>> On Wed, Aug 7, 2024 at 7:24 AM Tim Chown <Tim.Chown=
>>> [e-mail]> wrote:
>>>
>>> Hi,
>>>
>>>
>>>
>>> *From: *Brian E Carpenter <[e-mail]>
>>> *Date: *Tuesday, 6 August 2024 at 21:53
>>> *To: *Nick Buraglio <[e-mail]>, IPv6 Operations <
>>> [e-mail]>
>>> *Subject: *[v6ops] Correction: Re: Working group Last call:
>>> draft-ietf-v6ops-cpe-lan-pd
>>>
>>> I support the draft going forward.
>>>
>>> I do have one comment on the scope of the document. I believe that it
>>> should also cover use of PD for a locally assigned ULA prefix. Please don't
>>> turn this into another endless ULA thread - but if the CE has assigned a
>>> ULA prefix, and supports PD for a GUA prefix, it should also support PD for
>>> the ULA prefix.
>>>
>>>
>>>
>>> This seems reasonable.
>>>
>>>
>>>
>>> Should /64 be hard coded in the document, or should it refer to a prefix
>>> of the length required to support SLAAC as currently defined?
>>>
>>> I'm concerned this will cause confusion amongst the CE Router community
>>> if I don't put an actual number.  If you really want we can 64 is based on
>>> the prefix length of SLAAC as currently defined.  How strong do you feel
>>> about this?
>>>
>>>
>>>
>>> Not strongly, but the WG has of late been trying not to unnecessarily
>>> hard code the 64 into documents. If 64 is used, then a short statement as
>>> to why would be good.
>>>
>>>
>>>
>>> The pd-per-device draft uses /64 in an example and says “Note that the prefix lengths used in the example are /64 because that is the prefix length currently supported by SLAAC and is not otherwise required by the proposed deployment model” and says a little more on /64 in section 8 which also refers to RFC 7084, and in section 11. The 64 isn’t “hard coded” in there, in that its use in the example is clearly explained.
>>>
>>> Minor nit – the “addresses” at the end of para 1 of the intro should
>>> probably say “prefixes”.
>>>
>>> thanks, fixed in -03.
>>>
>>>
>>>
>>> Best wishes,
>>>
>>> Tim
>>>
>>>
>>>
>>> Tim
>>>
>>>
>>>
>>> (There are several grammatical nits in the Introduction. I'll send them
>>> to the author off-list.)
>>>
>>> Regards
>>>      Brian Carpenter
>>>
>>> On 07-Aug-24 03:18, Nick Buraglio wrote:
>>> > All,
>>> >
>>> > This message begins the working group last call for
>>> draft-ietf-v6ops-cpe-lan-pd. Please read the draft and send your comments
>>> in response to this email.
>>> >
>>> > The draft can be found here:
>>> https://datatracker.ietf.org/doc/draft-ietf-v6ops-cpe-lan-pd/ <
>>> https://datatracker.ietf.org/doc/draft-ietf-v6ops-cpe-lan-pd/>
>>> >
>>> > nb
>>> >
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